diff --git a/plugins/3d/vrml/CMakeLists.txt b/plugins/3d/vrml/CMakeLists.txt
index 8c2528600e..131b486d3f 100644
--- a/plugins/3d/vrml/CMakeLists.txt
+++ b/plugins/3d/vrml/CMakeLists.txt
@@ -6,7 +6,7 @@ include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}/x3d
 )
 
-add_definitions( -DDEBUG_VRML1=1 -DDEBUG_VRML2=1 -DDEBUG_X3D=1 )
+add_definitions( -DDEBUG_VRML1=3 -DDEBUG_VRML2=3 -DDEBUG_X3D=3 )
 
 add_library( s3d_plugin_vrml MODULE
         ${CMAKE_SOURCE_DIR}/common/richio.cpp
diff --git a/plugins/3d/vrml/v1/vrml1_base.cpp b/plugins/3d/vrml/v1/vrml1_base.cpp
index 8576e6b648..4f2a729f15 100644
--- a/plugins/3d/vrml/v1/vrml1_base.cpp
+++ b/plugins/3d/vrml/v1/vrml1_base.cpp
@@ -22,6 +22,8 @@
  */
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_group.h"
@@ -48,7 +50,7 @@ WRL1BASE::WRL1BASE() : WRL1NODE( NULL )
 WRL1BASE::~WRL1BASE()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying virtual base node\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying virtual base node\n" );
     #endif
 
     cancelDict();
@@ -60,8 +62,12 @@ WRL1BASE::~WRL1BASE()
 bool WRL1BASE::SetParent( WRL1NODE* aParent )
 {
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] attempting to set parent on WRL1BASE node\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] attempting to set parent on WRL1BASE node";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -109,8 +115,12 @@ void WRL1BASE::DelInlineData( const std::string& aName, WRL1INLINE* aObject )
 std::string WRL1BASE::GetName( void )
 {
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] attempting to extract name from virtual base node\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] attempting to extract name from virtual base node";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return std::string( "" );
@@ -120,8 +130,12 @@ std::string WRL1BASE::GetName( void )
 bool WRL1BASE::SetName( const std::string& aName )
 {
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] attempting to set name on virtual base node\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] attempting to set name on virtual base node";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -133,15 +147,18 @@ bool WRL1BASE::Read( WRLPROC& proc )
     if( proc.GetVRMLType() != VRML_V1 )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] no open file or file is not a VRML1 file\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] no open file or file is not a VRML1 file";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
     }
 
     std::string glob;
-    WRL1NODES ntype;
 
     // Note: according to the VRML1 specification, a file may contain
     // only one grouping node at the top level. The following code
@@ -150,12 +167,19 @@ bool WRL1BASE::Read( WRLPROC& proc )
 
     while( proc.Peek() )
     {
+        size_t line, column;
+        proc.GetFilePosData( line, column );
+
         if( !ReadNode( proc, this, NULL ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-            std::cerr << line << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad file format; unexpected eof at line ";
+                ostr << line << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -165,8 +189,12 @@ bool WRL1BASE::Read( WRLPROC& proc )
     if( !proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << proc.GetError() <<  "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << proc.GetError();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -184,8 +212,12 @@ bool WRL1BASE::implementUse( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( !aParent )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] invoked with NULL parent\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] invoked with NULL parent";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -196,8 +228,12 @@ bool WRL1BASE::implementUse( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( !proc.ReadName( glob ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << proc.GetError() <<  "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << proc.GetError();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -209,8 +245,12 @@ bool WRL1BASE::implementUse( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( NULL == ref )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] node '" << glob << "' not found\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] node '" << glob << "' not found";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return true;
@@ -219,10 +259,14 @@ bool WRL1BASE::implementUse( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( !aParent->AddRefNode( ref ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] failed to add node '" << glob << "' (";
-        std::cerr << ref->GetNodeTypeName( ref->GetNodeType() ) << ") to parent of type ";
-        std::cerr << aParent->GetNodeTypeName( aParent->GetNodeType() ) << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] failed to add node '" << glob << "' (";
+            ostr << ref->GetNodeTypeName( ref->GetNodeType() ) << ") to parent of type ";
+            ostr << aParent->GetNodeTypeName( aParent->GetNodeType() );
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -243,8 +287,12 @@ bool WRL1BASE::implementDef( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( NULL == aParent )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] invalid parent pointer (NULL)\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] invalid parent pointer (NULL)";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -256,8 +304,12 @@ bool WRL1BASE::implementDef( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
     if( !proc.ReadName( glob ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << proc.GetError() <<  "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << proc.GetError();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -274,11 +326,15 @@ bool WRL1BASE::implementDef( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode
         if( lnode && !lnode->SetName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            size_t line, column;
-            proc.GetFilePosData( line, column );
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad formatting (invalid name) at line";
-            std::cerr << line << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                size_t line, column;
+                proc.GetFilePosData( line, column );
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad formatting (invalid name) at line";
+                ostr << line << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -310,8 +366,12 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
     if( NULL == aParent )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] invalid parent pointer (NULL)\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] invalid parent pointer (NULL)";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -325,8 +385,10 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
         if( !proc.eof() )
         {
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << proc.GetError();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
         }
         #endif
 
@@ -342,8 +404,12 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
         if( !implementUse( proc, aParent, aNode ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -357,8 +423,12 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
         if( !implementDef( proc, aParent, aNode ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -373,7 +443,11 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
     proc.GetFilePosData( line, column );
 
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Processing node '" << glob << "' ID: " << ntype << "\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Processing node '" << glob << "' ID: " << ntype;
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     switch( ntype )
@@ -454,10 +528,14 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
         if( !proc.DiscardNode() )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << proc.GetError() << "\n";
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] could not discard node at line " << line;
-            std::cerr << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << proc.GetError() << "\n";
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] could not discard node at line " << line;
+                ostr << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -465,8 +543,10 @@ bool WRL1BASE::ReadNode( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNode )
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
         else
         {
-            std::cerr << " * [INFO] discarded node '" << glob << "' at line ";
-            std::cerr << line << ", col " << column << " (currently unsupported)\n";
+            std::ostringstream ostr;
+            ostr << " * [INFO] discarded node '" << glob << "' at line ";
+            ostr << line << ", col " << column << " (currently unsupported)";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
         }
         #endif
 
@@ -481,9 +561,13 @@ bool WRL1BASE::Read( WRLPROC& proc, WRL1BASE* aTopNode )
 {
     // this function makes no sense in the base node
     #ifdef DEBUG_VRML1
-    std::cerr << proc.GetError() << "\n";
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] this method must never be invoked on a WRL1BASE object\n";
+    do {
+        std::ostringstream ostr;
+        ostr << proc.GetError() << "\n";
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] this method must never be invoked on a WRL1BASE object";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -670,8 +754,12 @@ bool WRL1BASE::readShapeHints( WRLPROC& proc, WRL1NODE* aParent, WRL1NODE** aNod
 SGNODE* WRL1BASE::TranslateToSG( SGNODE* aParent, WRL1STATUS* /*sp*/ )
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Translating VRML1 Base with " << m_Items.size();
-    std::cerr << " items\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating VRML1 Base with " << m_Items.size();
+        ostr << " items";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( m_Items.empty() )
diff --git a/plugins/3d/vrml/v1/vrml1_coords.cpp b/plugins/3d/vrml/v1/vrml1_coords.cpp
index e7ab574885..b6fc79a8f6 100644
--- a/plugins/3d/vrml/v1/vrml1_coords.cpp
+++ b/plugins/3d/vrml/v1/vrml1_coords.cpp
@@ -23,6 +23,8 @@
 
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_coords.h"
@@ -51,7 +53,7 @@ WRL1COORDS::WRL1COORDS( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1COORDS::~WRL1COORDS()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Coordinate3 node\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying Coordinate3 node\n" );
     #endif
 
     return;
@@ -63,8 +65,12 @@ bool WRL1COORDS::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -76,8 +82,12 @@ bool WRL1COORDS::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -94,9 +104,13 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -105,10 +119,14 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column << "\n";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -126,8 +144,12 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( !proc.ReadName( glob ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << proc.GetError() <<  "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << proc.GetError();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -141,11 +163,15 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadMFVec3f( points ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] invalid point set at line " << line << ", column ";
-            std::cerr << column << "\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-            std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] invalid point set at line " << line << ", column ";
+                ostr << column << "\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                ostr << " * [INFO] message: '" << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -154,10 +180,14 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     else
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad Coordinate at line " << line << ", column ";
-        std::cerr << column << "\n";
-        std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad Coordinate at line " << line << ", column ";
+            ostr << column << "\n";
+            ostr << " * [INFO] file: '" << proc.GetFileName();
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -185,10 +215,14 @@ bool WRL1COORDS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     proc.GetFilePosData( line, column );
 
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [INFO] bad Coordinate at line " << line << ", column ";
-    std::cerr << column << " (no closing brace)\n";
-    std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [INFO] bad Coordinate at line " << line << ", column ";
+        ostr << column << " (no closing brace)\n";
+        ostr << " * [INFO] file: '" << proc.GetFileName();
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -215,7 +249,7 @@ SGNODE* WRL1COORDS::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL == sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no base data given\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_faceset.cpp b/plugins/3d/vrml/v1/vrml1_faceset.cpp
index 8cb0bbf9f2..92f56f9428 100644
--- a/plugins/3d/vrml/v1/vrml1_faceset.cpp
+++ b/plugins/3d/vrml/v1/vrml1_faceset.cpp
@@ -23,6 +23,8 @@
 
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_faceset.h"
@@ -56,9 +58,13 @@ WRL1FACESET::WRL1FACESET( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1FACESET::~WRL1FACESET()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying IndexedFaceSet with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying IndexedFaceSet with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -70,8 +76,12 @@ bool WRL1FACESET::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -83,8 +93,12 @@ bool WRL1FACESET::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -101,9 +115,13 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -112,10 +130,14 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -135,8 +157,12 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -153,11 +179,15 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFInt( coordIndex ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid coordIndex at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid coordIndex at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -168,11 +198,15 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFInt( matIndex ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid materialIndex at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid materialIndex at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -183,11 +217,15 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFInt( normIndex ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid normalIndex at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid normalIndex at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -198,11 +236,15 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFInt( texIndex ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid textureCoordIndex at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid textureCoordIndex at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -211,10 +253,14 @@ bool WRL1FACESET::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         else
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad IndexedFaceSet at line " << line << ", column ";
-            std::cerr << column << "\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad IndexedFaceSet at line " << line << ", column ";
+                ostr << column << "\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -234,7 +280,7 @@ SGNODE* WRL1FACESET::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( !m_Parent )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no parent node\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no parent node\n" );
         #endif
 
         return NULL;
@@ -244,7 +290,7 @@ SGNODE* WRL1FACESET::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
         if( NULL == sp )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << " * [INFO] bad model: no base data given\n";
+            wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
             #endif
 
             return NULL;
@@ -257,10 +303,10 @@ SGNODE* WRL1FACESET::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
         if( NULL == m_current.coord )
-            std::cerr << " * [INFO] bad model: no vertex set\n";
+            wxLogTrace( MASK_VRML, " * [INFO] bad model: no vertex set\n" );
 
         if( NULL == m_current.mat )
-            std::cerr << " * [INFO] bad model: no material set\n";
+            wxLogTrace( MASK_VRML, " * [INFO] bad model: no material set\n" );
         #endif
 
         return NULL;
@@ -275,8 +321,12 @@ SGNODE* WRL1FACESET::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( coordsize < 3 || vsize < 3 )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: coordsize, indexsize = " << coordsize;
-        std::cerr << ", " << vsize << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] bad model: coordsize, indexsize = " << coordsize;
+            ostr << ", " << vsize;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
@@ -302,7 +352,7 @@ SGNODE* WRL1FACESET::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
         if( matIndex.empty() )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << " * [INFO] bad model: per face indexed but no indices\n";
+            wxLogTrace( MASK_VRML, " * [INFO] bad model: per face indexed but no indices\n" );
             #endif
 
             // support bad models by temporarily switching bindings
diff --git a/plugins/3d/vrml/v1/vrml1_group.cpp b/plugins/3d/vrml/v1/vrml1_group.cpp
index bf2c92533a..a86ef44951 100644
--- a/plugins/3d/vrml/v1/vrml1_group.cpp
+++ b/plugins/3d/vrml/v1/vrml1_group.cpp
@@ -28,6 +28,8 @@
 // simply duplicate the code
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_group.h"
@@ -57,9 +59,13 @@ WRL1GROUP::WRL1GROUP( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1GROUP::~WRL1GROUP()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Group with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Group with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -72,8 +78,12 @@ bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -87,9 +97,13 @@ bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -98,10 +112,14 @@ bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -123,9 +141,13 @@ bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !aTopNode->ReadNode( proc, this, NULL ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-            std::cerr << line << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad file format; unexpected eof at line ";
+                ostr << line << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -143,17 +165,25 @@ bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
 SGNODE* WRL1GROUP::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Translating Group with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers (total ";
-    std::cerr << m_Items.size() << " items)\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Group with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers (total ";
+        ostr << m_Items.size() << " items)";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( !m_Parent )
     {
         #ifdef DEBUG
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Group has no parent\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Group has no parent";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
@@ -164,7 +194,7 @@ SGNODE* WRL1GROUP::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
         if( NULL == sp )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << " * [INFO] bad model: no base data given\n";
+            wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
             #endif
 
             return NULL;
@@ -181,9 +211,13 @@ SGNODE* WRL1GROUP::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL != aParent && ptype != S3D::SGTYPE_TRANSFORM )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Group does not have a Transform parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Group does not have a Transform parent (parent ID: ";
+            ostr << ptype << ")";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_matbinding.cpp b/plugins/3d/vrml/v1/vrml1_matbinding.cpp
index 7d8a3f2df2..8a4379741f 100644
--- a/plugins/3d/vrml/v1/vrml1_matbinding.cpp
+++ b/plugins/3d/vrml/v1/vrml1_matbinding.cpp
@@ -23,6 +23,8 @@
 
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_matbinding.h"
@@ -54,7 +56,7 @@ WRL1MATBINDING::WRL1MATBINDING( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1MATBINDING::~WRL1MATBINDING()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying MaterialBinding node\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying MaterialBinding node\n" );
     #endif
 
     return;
@@ -66,8 +68,12 @@ bool WRL1MATBINDING::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -79,8 +85,12 @@ bool WRL1MATBINDING::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -92,8 +102,12 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -107,9 +121,13 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -118,10 +136,14 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -141,8 +163,12 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -151,10 +177,14 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( glob.compare( "value" ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad MaterialBinding at line " << line << ", column ";
-            std::cerr << column << " (did not find keyword 'value')\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad MaterialBinding at line " << line << ", column ";
+                ostr << column << " (did not find keyword 'value')\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -163,8 +193,12 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -217,10 +251,14 @@ bool WRL1MATBINDING::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         else
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad MaterialBinding at line " << line << ", column ";
-            std::cerr << column << "\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad MaterialBinding at line " << line << ", column ";
+                ostr << column << "\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             m_binding = BIND_OVERALL;
@@ -236,7 +274,7 @@ SGNODE* WRL1MATBINDING::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL == sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no base data given\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_material.cpp b/plugins/3d/vrml/v1/vrml1_material.cpp
index 715f0262ec..3fd365606e 100644
--- a/plugins/3d/vrml/v1/vrml1_material.cpp
+++ b/plugins/3d/vrml/v1/vrml1_material.cpp
@@ -23,6 +23,8 @@
 
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_material.h"
@@ -56,7 +58,7 @@ WRL1MATERIAL::WRL1MATERIAL( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1MATERIAL::~WRL1MATERIAL()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Material node\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying Material node\n" );
     #endif
 
     // destroy any orphaned color nodes
@@ -65,14 +67,22 @@ WRL1MATERIAL::~WRL1MATERIAL()
         if( NULL != colors[i] )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-            std::cerr << " * [INFO] Destroying SGCOLOR #" << i << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << " * [INFO] Destroying SGCOLOR #" << i;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             if( NULL == S3D::GetSGNodeParent( colors[i] ) )
                 S3D::DestroyNode( colors[i] );
 
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-            std::cerr << " * [INFO] destroyed SGCOLOR #" << i << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << " * [INFO] destroyed SGCOLOR #" << i;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
         }
     }
@@ -86,8 +96,12 @@ bool WRL1MATERIAL::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -99,8 +113,12 @@ bool WRL1MATERIAL::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -112,8 +130,12 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -127,9 +149,13 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -138,10 +164,14 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -161,8 +191,12 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -183,11 +217,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFVec3f( specularColor ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid specularColor at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid specularColor at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -198,11 +236,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFVec3f( diffuseColor ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid diffuseColor at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid diffuseColor at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -213,11 +255,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFVec3f( emissiveColor ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid emissiveColor at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid emissiveColor at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -228,11 +274,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFFloat( shininess ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid shininess at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid shininess at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -243,11 +293,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFFloat( transparency ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid transparency at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid transparency at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -258,11 +312,15 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadMFVec3f( ambientColor ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid ambientColor at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid ambientColor at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -271,10 +329,14 @@ bool WRL1MATERIAL::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         else
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad Material at line " << line << ", column ";
-            std::cerr << column << "\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad Material at line " << line << ", column ";
+                ostr << column << "\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -290,7 +352,7 @@ SGNODE* WRL1MATERIAL::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL == sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no base data given\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_node.cpp b/plugins/3d/vrml/v1/vrml1_node.cpp
index b22c54b297..2ee1a81c37 100644
--- a/plugins/3d/vrml/v1/vrml1_node.cpp
+++ b/plugins/3d/vrml/v1/vrml1_node.cpp
@@ -29,6 +29,8 @@
 #include <cctype>
 #include <iostream>
 #include <algorithm>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_node.h"
 
@@ -141,9 +143,13 @@ WRL1NODE::WRL1NODE( NAMEREGISTER* aDictionary )
 WRL1NODE::~WRL1NODE()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] ^^ Destroying Type " << m_Type << " with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] ^^ Destroying Type " << m_Type << " with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     m_Items.clear();
@@ -165,13 +171,21 @@ WRL1NODE::~WRL1NODE()
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
         ++acc;
-        std::cerr << " * [INFO] " << tabs << "Type " << m_Type << " is Unlinking ref #";
-        std::cerr << acc << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] " << tabs << "Type " << m_Type << " is Unlinking ref #";
+            ostr << acc;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
         (*sBP)->unlinkRefNode( this );
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-        std::cerr << " * [INFO] " << tabs << "Type " << m_Type << " has unlinked ref #";
-        std::cerr << acc << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] " << tabs << "Type " << m_Type << " has unlinked ref #";
+            ostr << acc;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
         ++sBP;
     }
@@ -190,18 +204,30 @@ WRL1NODE::~WRL1NODE()
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
         ++acc;
-        std::cerr << " * [INFO] " << otabs << "Type " << m_Type << " is Deleting child #";
-        std::cerr << acc << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] " << otabs << "Type " << m_Type << " is Deleting child #";
+            ostr << acc;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
         (*sC)->SetParent( NULL, false );
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-        std::cerr << " * [INFO] " << otabs << "Type " << m_Type << " has unlinked child #";
-        std::cerr << acc << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] " << otabs << "Type " << m_Type << " has unlinked child #";
+            ostr << acc;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
-        //delete *sC;
+        delete *sC;
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-        std::cerr << " * [INFO] " << otabs << "Type " << m_Type << " has deleted child #";
-        std::cerr << acc << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << " * [INFO] " << otabs << "Type " << m_Type << " has deleted child #";
+            ostr << acc;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
         ++sC;
     }
@@ -269,8 +295,12 @@ void WRL1NODE::delNodeRef( WRL1NODE* aNode )
     }
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] delNodeRef() did not find its target\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] delNodeRef() did not find its target";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -303,8 +333,12 @@ bool WRL1NODE::SetName( const std::string& aName )
     if( isdigit( aName[0] ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] invalid node name '" << aName << "' (begins with digit)\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] invalid node name '" << aName << "' (begins with digit)";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -320,9 +354,13 @@ bool WRL1NODE::SetName( const std::string& aName )
         || std::string::npos != aName.find_first_of( BAD_CHARS2 ) )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] invalid node name '" << aName;
-        std::cerr<< "' (contains invalid character)\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] invalid node name '" << aName;
+            ostr << "' (contains invalid character)";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -406,8 +444,12 @@ bool WRL1NODE::AddChildNode( WRL1NODE* aNode )
     if( aNode->GetNodeType() == WRL1_BASE )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] attempting to add a base node to another node\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] attempting to add a base node to another node";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -439,8 +481,12 @@ bool WRL1NODE::AddRefNode( WRL1NODE* aNode )
     if( NULL == aNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] NULL passed as node pointer\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] NULL passed as node pointer";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -449,8 +495,12 @@ bool WRL1NODE::AddRefNode( WRL1NODE* aNode )
     if( aNode->GetNodeType() == WRL1_BASE )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] attempting to add a base node ref to another base node\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] attempting to add a base node ref to another base node";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
diff --git a/plugins/3d/vrml/v1/vrml1_separator.cpp b/plugins/3d/vrml/v1/vrml1_separator.cpp
index 5257024bd5..9ad874571b 100644
--- a/plugins/3d/vrml/v1/vrml1_separator.cpp
+++ b/plugins/3d/vrml/v1/vrml1_separator.cpp
@@ -22,6 +22,8 @@
  */
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_separator.h"
@@ -51,9 +53,13 @@ WRL1SEPARATOR::WRL1SEPARATOR( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1SEPARATOR::~WRL1SEPARATOR()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Separator with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Separator with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -66,8 +72,12 @@ bool WRL1SEPARATOR::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -81,9 +91,13 @@ bool WRL1SEPARATOR::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -92,10 +106,14 @@ bool WRL1SEPARATOR::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -117,9 +135,13 @@ bool WRL1SEPARATOR::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !aTopNode->ReadNode( proc, this, NULL ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-            std::cerr << line << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad file format; unexpected eof at line ";
+                ostr << line << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -137,17 +159,25 @@ bool WRL1SEPARATOR::Read( WRLPROC& proc, WRL1BASE* aTopNode )
 SGNODE* WRL1SEPARATOR::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Translating Separator with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers (total ";
-    std::cerr << m_Items.size() << " items)\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Separator with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers (total ";
+        ostr << m_Items.size() << " items)";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( !m_Parent )
     {
         #ifdef DEBUG
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Separator has no parent\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Separator has no parent";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
@@ -163,9 +193,13 @@ SGNODE* WRL1SEPARATOR::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL != aParent && ptype != S3D::SGTYPE_TRANSFORM )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Separator does not have a Transform parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Separator does not have a Transform parent (parent ID: ";
+            ostr << ptype << ")";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_shapehints.cpp b/plugins/3d/vrml/v1/vrml1_shapehints.cpp
index 7fda267041..fe0def4c3f 100644
--- a/plugins/3d/vrml/v1/vrml1_shapehints.cpp
+++ b/plugins/3d/vrml/v1/vrml1_shapehints.cpp
@@ -23,7 +23,9 @@
 
 
 #include <iostream>
+#include <sstream>
 #include <cmath>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_shapehints.h"
@@ -57,7 +59,7 @@ WRL1SHAPEHINTS::WRL1SHAPEHINTS( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1SHAPEHINTS::~WRL1SHAPEHINTS()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying ShapeHints node\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying ShapeHints node\n" );
     #endif
 
     return;
@@ -69,8 +71,12 @@ bool WRL1SHAPEHINTS::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -82,8 +88,12 @@ bool WRL1SHAPEHINTS::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -95,8 +105,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -110,9 +124,13 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -121,10 +139,14 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -144,8 +166,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -162,8 +188,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadName( glob ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << proc.GetError() <<  "\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -178,10 +208,14 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             else
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] bad ShapeHints at line " << line << ", column ";
-                std::cerr << column << " (invalid value '" << glob << "')\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] bad ShapeHints at line " << line << ", column ";
+                    ostr << column << " (invalid value '" << glob << "')\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -192,8 +226,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadName( glob ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << proc.GetError() <<  "\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -208,8 +246,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadName( glob ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << proc.GetError() <<  "\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -226,8 +268,12 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFFloat( tmp ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << proc.GetError() <<  "\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -243,10 +289,14 @@ bool WRL1SHAPEHINTS::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         else
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad ShapeHints at line " << line << ", column ";
-            std::cerr << column << " (unexpected keyword '" << glob << "')\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad ShapeHints at line " << line << ", column ";
+                ostr << column << " (unexpected keyword '" << glob << "')\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -265,7 +315,7 @@ SGNODE* WRL1SHAPEHINTS::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL == sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no base data given\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/v1/vrml1_switch.cpp b/plugins/3d/vrml/v1/vrml1_switch.cpp
index cb7a9b93b2..f8a0399868 100644
--- a/plugins/3d/vrml/v1/vrml1_switch.cpp
+++ b/plugins/3d/vrml/v1/vrml1_switch.cpp
@@ -22,7 +22,9 @@
  */
 
 #include <iostream>
+#include <sstream>
 #include <iterator>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_switch.h"
@@ -55,9 +57,13 @@ WRL1SWITCH::WRL1SWITCH( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1SWITCH::~WRL1SWITCH()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Switch with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Switch with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -79,8 +85,12 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -94,9 +104,13 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -105,10 +119,14 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -131,8 +149,12 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadName( glob ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << proc.GetError() <<  "\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << proc.GetError();
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -143,11 +165,15 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
                 if( !proc.ReadSFInt( whichChild ) )
                 {
                     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                    std::cerr << " * [INFO] invalid whichChild at line " << line << ", column ";
-                    std::cerr << column << "\n";
-                    std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                    std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                    do {
+                        std::ostringstream ostr;
+                        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                        ostr << " * [INFO] invalid whichChild at line " << line << ", column ";
+                        ostr << column << "\n";
+                        ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                        ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                    } while( 0 );
                     #endif
 
                     return false;
@@ -157,10 +183,14 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             }
 
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] invalid Switch at line " << line << ", column ";
-            std::cerr << column << " (expected 'whichChild')\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] invalid Switch at line " << line << ", column ";
+                ostr << column << " (expected 'whichChild')\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -171,9 +201,13 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !aTopNode->ReadNode( proc, this, NULL ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-            std::cerr << line << ", column " << column << "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad file format; unexpected eof at line ";
+                ostr << line << ", column " << column;
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -191,10 +225,14 @@ bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
 SGNODE* WRL1SWITCH::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Translating Switch with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers (total ";
-    std::cerr << m_Items.size() << " items)\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Switch with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers (total ";
+        ostr << m_Items.size() << " items)";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( m_Items.empty() )
diff --git a/plugins/3d/vrml/v1/vrml1_transform.cpp b/plugins/3d/vrml/v1/vrml1_transform.cpp
index 4d6258fb10..629b0ff450 100644
--- a/plugins/3d/vrml/v1/vrml1_transform.cpp
+++ b/plugins/3d/vrml/v1/vrml1_transform.cpp
@@ -22,6 +22,8 @@
  */
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 
 #include "vrml1_base.h"
 #include "vrml1_transform.h"
@@ -51,9 +53,13 @@ WRL1TRANSFORM::WRL1TRANSFORM( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
 WRL1TRANSFORM::~WRL1TRANSFORM()
 {
     #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 2 )
-    std::cerr << " * [INFO] Destroying Transform with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Transform with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -77,8 +83,12 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( NULL == aTopNode )
     {
         #ifdef DEBUG_VRML1
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] aTopNode is NULL\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] aTopNode is NULL";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -109,9 +119,13 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( proc.eof() )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; unexpected eof at line ";
-        std::cerr << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; unexpected eof at line ";
+            ostr << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -120,10 +134,14 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
     if( '{' != tok )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << proc.GetError() << "\n";
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [INFO] bad file format; expecting '{' but got '" << tok;
-        std::cerr  << "' at line " << line << ", column " << column << "\n";
+        do {
+            std::ostringstream ostr;
+            ostr << proc.GetError() << "\n";
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
+            ostr << "' at line " << line << ", column " << column;
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return false;
@@ -143,8 +161,12 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         if( !proc.ReadName( glob ) )
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << proc.GetError() <<  "\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << proc.GetError();
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -164,11 +186,15 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFVec3f( center ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid center at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid center at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -184,11 +210,15 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFRotation( rotation ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid rotation at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid rotation at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -199,11 +229,15 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFVec3f( scale ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid scale at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid scale at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -214,11 +248,15 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFRotation( scaleOrientation ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid scaleOrientation at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid scaleOrientation at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -229,11 +267,15 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
             if( !proc.ReadSFVec3f( translation ) )
             {
                 #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-                std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-                std::cerr << " * [INFO] invalid translation at line " << line << ", column ";
-                std::cerr << column << "\n";
-                std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
-                std::cerr << " * [INFO] message: '" << proc.GetError() << "'\n";
+                do {
+                    std::ostringstream ostr;
+                    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                    ostr << " * [INFO] invalid translation at line " << line << ", column ";
+                    ostr << column << "\n";
+                    ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+                    ostr << " * [INFO] message: '" << proc.GetError() << "'";
+                    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+                } while( 0 );
                 #endif
 
                 return false;
@@ -247,10 +289,14 @@ bool WRL1TRANSFORM::Read( WRLPROC& proc, WRL1BASE* aTopNode )
         else
         {
             #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-            std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-            std::cerr << " * [INFO] bad Transform at line " << line << ", column ";
-            std::cerr << column << "\n";
-            std::cerr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
+            do {
+                std::ostringstream ostr;
+                ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+                ostr << " * [INFO] bad Transform at line " << line << ", column ";
+                ostr << column << "\n";
+                ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
+                wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+            } while( 0 );
             #endif
 
             return false;
@@ -266,8 +312,12 @@ bool WRL1TRANSFORM::AddRefNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddRefNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddRefNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -279,8 +329,12 @@ bool WRL1TRANSFORM::AddChildNode( WRL1NODE* aNode )
     // this node may not own or reference any other node
 
     #ifdef DEBUG_VRML1
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] AddChildNode is not applicable\n";
+    do {
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] AddChildNode is not applicable";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return false;
@@ -298,7 +352,7 @@ SGNODE* WRL1TRANSFORM::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
     if( NULL == sp )
     {
         #if defined( DEBUG_VRML1 ) && ( DEBUG_VRML1 > 1 )
-        std::cerr << " * [INFO] bad model: no base data given\n";
+        wxLogTrace( MASK_VRML, " * [INFO] bad model: no base data given\n" );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/vrml.cpp b/plugins/3d/vrml/vrml.cpp
index 4f2f009e89..9769095cfd 100644
--- a/plugins/3d/vrml/vrml.cpp
+++ b/plugins/3d/vrml/vrml.cpp
@@ -32,11 +32,7 @@
  */
 
 #include <locale.h>
-#include <fstream>
-#include <iostream>
-#include <cmath>
-#include <string>
-#include <wx/string.h>
+#include <wx/log.h>
 #include <wx/filename.h>
 #include "richio.h"
 #include "plugins/3d/3d_plugin.h"
@@ -188,9 +184,7 @@ SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
     }
     catch( IO_ERROR &e )
     {
-        #ifdef DEBUG
-        std::cerr << " * [INFO] load failed: input line too long\n";
-        #endif
+        wxLogError( _( " * [INFO] load failed: input line too long\n" ) );
         return NULL;
     }
 
@@ -200,9 +194,7 @@ SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
 
     if( proc.GetVRMLType() == VRML_V1 )
     {
-        #ifdef DEBUG
-        std::cerr << " * [INFO] Processing VRML 1.0 file\n";
-        #endif
+        wxLogTrace( MASK_VRML, " * [INFO] Processing VRML 1.0 file\n" );
 
         WRL1BASE* bp = new WRL1BASE;
 
@@ -211,15 +203,11 @@ SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
 
         if( !bp->Read( proc ) )
         {
-            #ifdef DEBUG
-            std::cerr << " * [INFO] load failed\n";
-            #endif
+            wxLogTrace( MASK_VRML, " * [INFO] load failed\n" );
         }
         else
         {
-            #ifdef DEBUG
-            std::cerr << " * [INFO] load completed\n";
-            #endif
+            wxLogTrace( MASK_VRML, " * [INFO] load completed\n" );
 
             scene = (SCENEGRAPH*)bp->TranslateToSG( NULL, NULL );
         }
@@ -228,9 +216,7 @@ SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
     }
     else
     {
-        #ifdef DEBUG
-        std::cerr << " * [INFO] Processing VRML 2.0 file\n";
-        #endif
+        wxLogTrace( MASK_VRML, " * [INFO] Processing VRML 2.0 file\n" );
 
         WRL2BASE* bp = new WRL2BASE;
 
@@ -239,15 +225,11 @@ SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
 
         if( !bp->Read( proc ) )
         {
-            #ifdef DEBUG
-            std::cerr << " * [INFO] load failed\n";
-            #endif
+            wxLogTrace( MASK_VRML, " * [INFO] load failed\n" );
         }
         else
         {
-            #ifdef DEBUG
-            std::cerr << " * [INFO] load completed\n";
-            #endif
+            wxLogTrace( MASK_VRML, " * [INFO] load completed\n" );
 
             // for now we recalculate all normals per-vertex per-face
             scene = (SCENEGRAPH*)bp->TranslateToSG( NULL );
diff --git a/plugins/3d/vrml/wrlproc.cpp b/plugins/3d/vrml/wrlproc.cpp
index 54afce3ca1..38130ae854 100644
--- a/plugins/3d/vrml/wrlproc.cpp
+++ b/plugins/3d/vrml/wrlproc.cpp
@@ -24,6 +24,7 @@
 #include <iostream>
 #include <sstream>
 #include <wx/string.h>
+#include <wx/log.h>
 #include "wrlproc.h"
 
 #define GETLINE do {\
@@ -374,9 +375,7 @@ bool WRLPROC::DiscardNode( void )
         ostr << ", column " << m_bufpos;
         m_error = ostr.str();
 
-        #ifdef DEBUG
-        std::cerr << m_error << "\n";
-        #endif
+        wxLogTrace( MASK_VRML, "%s\n", m_error.c_str() );
 
         return false;
     }
diff --git a/plugins/3d/vrml/wrltypes.h b/plugins/3d/vrml/wrltypes.h
index 19bd2c637c..30670a3c49 100644
--- a/plugins/3d/vrml/wrltypes.h
+++ b/plugins/3d/vrml/wrltypes.h
@@ -33,6 +33,9 @@
 #define GLM_FORCE_RADIANS
 #include <glm/glm.hpp>
 
+// log mask for wxLogTrace
+#define MASK_VRML "PLUGIN_VRML"
+
 // version of the VRML file being parsed
 enum WRLVERSION
 {
diff --git a/plugins/3d/vrml/x3d/x3d_appearance.cpp b/plugins/3d/vrml/x3d/x3d_appearance.cpp
index 3cc8536473..f8d6453f7d 100644
--- a/plugins/3d/vrml/x3d/x3d_appearance.cpp
+++ b/plugins/3d/vrml/x3d/x3d_appearance.cpp
@@ -23,6 +23,8 @@
 
 
 #include <iostream>
+#include <sstream>
+#include <wx/log.h>
 #include <wx/xml/xml.h>
 #include "x3d_ops.h"
 #include "x3d_appearance.h"
@@ -61,7 +63,7 @@ X3DAPP::X3DAPP( X3DNODE* aParent ) : X3DNODE()
 X3DAPP::~X3DAPP()
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Destroying Appearance\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying Appearance\n" );
     #endif
 
     if( !m_MatName.empty() && m_Dict )
@@ -237,18 +239,24 @@ SGNODE* X3DAPP::TranslateToSG( SGNODE* aParent )
     if( NULL != aParent && ptype != S3D::SGTYPE_SHAPE )
     {
         #ifdef DEBUG_X3D
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Appearance does not have a Shape parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        std::ostringstream ostr;
+        ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+        ostr << " * [BUG] Appearance does not have a Shape parent (parent ID: ";
+        ostr << ptype << ")";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
         #endif
 
         return NULL;
     }
 
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Translating Appearance with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Appearance with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( m_sgNode )
diff --git a/plugins/3d/vrml/x3d/x3d_base.cpp b/plugins/3d/vrml/x3d/x3d_base.cpp
index cfb9ac5bc1..192efd023f 100644
--- a/plugins/3d/vrml/x3d/x3d_base.cpp
+++ b/plugins/3d/vrml/x3d/x3d_base.cpp
@@ -23,9 +23,12 @@
 
 
 #include <iostream>
+#include <sstream>
 #include <utility>
 #include <algorithm>
+#include <wx/log.h>
 #include "x3d_base.h"
+#include "wrltypes.h"
 
 
 bool X3D_DICT::AddName( const wxString& aName, X3DNODE* aNode )
@@ -169,8 +172,10 @@ void X3DNODE::delNodeRef( X3DNODE* aNode )
     }
 
     #ifdef DEBUG_X3D
-    std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-    std::cerr << " * [BUG] delNodeRef() did not find its target\n";
+    std::ostringstream ostr;
+    ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+    ostr << " * [BUG] delNodeRef() did not find its target";
+    wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
     #endif
 
     return;
diff --git a/plugins/3d/vrml/x3d/x3d_coords.cpp b/plugins/3d/vrml/x3d/x3d_coords.cpp
index 5737305233..51fe3ba0ae 100644
--- a/plugins/3d/vrml/x3d/x3d_coords.cpp
+++ b/plugins/3d/vrml/x3d/x3d_coords.cpp
@@ -25,6 +25,7 @@
 #include <iostream>
 #include <wx/xml/xml.h>
 #include <wx/tokenzr.h>
+#include <wx/log.h>
 #include "x3d_ops.h"
 #include "x3d_coords.h"
 
@@ -59,7 +60,7 @@ X3DCOORDS::X3DCOORDS( X3DNODE* aParent ) : X3DNODE()
 X3DCOORDS::~X3DCOORDS()
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Destroying Coordinate\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying Coordinate\n" );
     #endif
     return;
 }
diff --git a/plugins/3d/vrml/x3d/x3d_ifaceset.cpp b/plugins/3d/vrml/x3d/x3d_ifaceset.cpp
index 8e10371ea2..051b961805 100644
--- a/plugins/3d/vrml/x3d/x3d_ifaceset.cpp
+++ b/plugins/3d/vrml/x3d/x3d_ifaceset.cpp
@@ -23,7 +23,9 @@
 
 
 #include <iostream>
+#include <sstream>
 #include <cmath>
+#include <wx/log.h>
 #include <wx/xml/xml.h>
 #include <wx/tokenzr.h>
 #include "x3d_ops.h"
@@ -67,7 +69,7 @@ X3DIFACESET::X3DIFACESET( X3DNODE* aParent ) : X3DNODE()
 X3DIFACESET::~X3DIFACESET()
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Destroying IndexedFaceSet\n";
+    wxLogTrace( MASK_VRML, " * [INFO] Destroying IndexedFaceSet\n" );
     #endif
 
     return;
@@ -241,19 +243,27 @@ SGNODE* X3DIFACESET::TranslateToSG( SGNODE* aParent )
     if( NULL != aParent && ptype != S3D::SGTYPE_SHAPE )
     {
         #ifdef DEBUG_X3D
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] IndexedFaceSet does not have a Shape parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] IndexedFaceSet does not have a Shape parent (parent ID: ";
+            ostr << ptype << ")";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
     }
 
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Translating IndexedFaceSet with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references, ";
-    std::cerr << m_BackPointers.size() << " backpointers and ";
-    std::cerr << coordIndex.size() << " coord indices\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating IndexedFaceSet with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references, ";
+        ostr << m_BackPointers.size() << " backpointers and ";
+        ostr << coordIndex.size() << " coord indices";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( m_sgNode )
diff --git a/plugins/3d/vrml/x3d/x3d_ops.cpp b/plugins/3d/vrml/x3d/x3d_ops.cpp
index 308feaaa93..4ce5c8c265 100644
--- a/plugins/3d/vrml/x3d/x3d_ops.cpp
+++ b/plugins/3d/vrml/x3d/x3d_ops.cpp
@@ -23,13 +23,10 @@
 
 #include <wx/tokenzr.h>
 #include <wx/xml/xml.h>
-#include <iostream>
 
 #include "x3d_appearance.h"
 #include "x3d_coords.h"
-#include "x3d_ifaceset.h"
 #include "x3d_ops.h"
-#include "x3d_shape.h"
 #include "x3d_transform.h"
 
 
diff --git a/plugins/3d/vrml/x3d/x3d_shape.cpp b/plugins/3d/vrml/x3d/x3d_shape.cpp
index 6aa9ffa3df..e71c7f4b4e 100644
--- a/plugins/3d/vrml/x3d/x3d_shape.cpp
+++ b/plugins/3d/vrml/x3d/x3d_shape.cpp
@@ -23,7 +23,9 @@
 
 
 #include <iostream>
+#include <sstream>
 #include <wx/xml/xml.h>
+#include <wx/log.h>
 #include "x3d_ops.h"
 #include "x3d_shape.h"
 #include "plugins/3dapi/ifsg_all.h"
@@ -63,9 +65,13 @@ X3DSHAPE::X3DSHAPE( X3DNODE* aParent ) : X3DNODE()
 X3DSHAPE::~X3DSHAPE()
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Destroying Shape with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Shape with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -247,9 +253,13 @@ SGNODE* X3DSHAPE::TranslateToSG( SGNODE* aParent )
         return NULL;
 
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Translating Shape with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Shape with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     S3D::SGTYPES ptype = S3D::GetSGNodeType( aParent );
@@ -257,9 +267,13 @@ SGNODE* X3DSHAPE::TranslateToSG( SGNODE* aParent )
     if( NULL != aParent && ptype != S3D::SGTYPE_TRANSFORM )
     {
         #ifdef DEBUG_X3D
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Shape does not have a Transform parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Shape does not have a Transform parent (parent ID: ";
+            ostr << ptype << ")";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;
diff --git a/plugins/3d/vrml/x3d/x3d_transform.cpp b/plugins/3d/vrml/x3d/x3d_transform.cpp
index 91e7fa2204..2108349586 100644
--- a/plugins/3d/vrml/x3d/x3d_transform.cpp
+++ b/plugins/3d/vrml/x3d/x3d_transform.cpp
@@ -23,7 +23,9 @@
 
 
 #include <iostream>
+#include <sstream>
 #include <wx/xml/xml.h>
+#include <wx/log.h>
 #include "x3d_ops.h"
 #include "x3d_transform.h"
 #include "plugins/3dapi/ifsg_all.h"
@@ -60,9 +62,13 @@ X3DTRANSFORM::X3DTRANSFORM( X3DNODE* aParent ) : X3DNODE()
 X3DTRANSFORM::~X3DTRANSFORM()
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Destroying Transform with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Destroying Transform with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     return;
@@ -265,9 +271,13 @@ bool X3DTRANSFORM::AddRefNode( X3DNODE* aNode )
 SGNODE* X3DTRANSFORM::TranslateToSG( SGNODE* aParent )
 {
     #if defined( DEBUG_X3D ) && ( DEBUG_X3D > 2 )
-    std::cerr << " * [INFO] Translating Transform with " << m_Children.size();
-    std::cerr << " children, " << m_Refs.size() << " references and ";
-    std::cerr << m_BackPointers.size() << " backpointers\n";
+    do {
+        std::ostringstream ostr;
+        ostr << " * [INFO] Translating Transform with " << m_Children.size();
+        ostr << " children, " << m_Refs.size() << " references and ";
+        ostr << m_BackPointers.size() << " backpointers";
+        wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+    } while( 0 );
     #endif
 
     if( m_Children.empty() && m_Refs.empty() )
@@ -277,10 +287,14 @@ SGNODE* X3DTRANSFORM::TranslateToSG( SGNODE* aParent )
 
     if( NULL != aParent && ptype != S3D::SGTYPE_TRANSFORM )
     {
-        #ifdef DEBUG_VRML2
-        std::cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
-        std::cerr << " * [BUG] Transform does not have a Transform parent (parent ID: ";
-        std::cerr << ptype << ")\n";
+        #ifdef DEBUG_X3D
+        do {
+            std::ostringstream ostr;
+            ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
+            ostr << " * [BUG] Transform does not have a Transform parent (parent ID: ";
+            ostr << ptype << ")";
+            wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
+        } while( 0 );
         #endif
 
         return NULL;