kicad/3d-viewer/3d_rendering/3d_render_raytracing/shapes3D/cdummyblock.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file cdummyblock.cpp
* @brief
*/
#include "cdummyblock.h"
CDUMMYBLOCK::CDUMMYBLOCK( const CBBOX& aBBox ) : COBJECT( OBJECT3D_TYPE::DUMMYBLOCK )
{
m_centroid = aBBox.GetCenter();
m_bbox.Reset();
m_bbox.Set( aBBox );
}
bool CDUMMYBLOCK::Intersect( const RAY &aRay, HITINFO &aHitInfo ) const
{
float t;
if( !m_bbox.Intersect( aRay, &t ) )
return false;
if( t < aHitInfo.m_tHit )
{
aHitInfo.m_tHit = t;
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aHitInfo.m_HitPoint = aRay.at( t );
if( aRay.m_dirIsNeg[2] )
aHitInfo.m_HitNormal = SFVEC3F( 0.0f, 0.0f, 1.0f );
else
aHitInfo.m_HitNormal = SFVEC3F( 0.0f, 0.0f,-1.0f );
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m_material->PerturbeNormal( aHitInfo.m_HitNormal, aRay, aHitInfo );
aHitInfo.pHitObject = this;
return true;
}
return false;
}
bool CDUMMYBLOCK::IntersectP(const RAY &aRay , float aMaxDistance ) const
{
float t;
if( !m_bbox.Intersect( aRay, &t ) )
return false;
if( t < aMaxDistance )
return true;
return false;
}
bool CDUMMYBLOCK::Intersects( const CBBOX &aBBox ) const
{
return m_bbox.Intersects( aBBox );
}
SFVEC3F CDUMMYBLOCK::GetDiffuseColor( const HITINFO &aHitInfo ) const
{
(void)aHitInfo; // unused
return m_diffusecolor;
}