1) For a while now we've been using a calculated seg count from a given
maxError, and a correction factor to push the radius out so that all
the error is outside the arc/circle. However, the second calculation
(which pre-dates the first) is pretty much just the inverse of the first
(and yields nothing more than maxError back). This is particularly
sub-optimal given the cost of trig functions.
2) There are a lot of old optimizations to reduce segcounts in certain
situations, someting that our error-based calculation compensates for
anyway. (Smaller radii need fewer segments to meet the maxError
condition.) But perhaps more importantly we now surface maxError in the
UI and we don't really want to call it "Max deviation except when it's
not".
3) We were also clamping the segCount twice: once in the calculation
routine and once in most of it's callers. Furthermore, the caller
clamping was inconsistent (both in being done and in the clamping
value). We now clamp only in the calculation routine.
4) There's no reason to use the correction factors in the 3Dviewer;
it's just a visualization and whether the polygonization error is
inside or outside the shape isn't really material.
5) The arc-correction-disabling stuff (used for solder mask layer) was
somewhat fragile in that it depended on the caller to turn it back on
afterwards. It's now only exposed as a RAII object which automatically
cleans up when it goes out of scope.
6) There were also bugs in a couple of the polygonization routines where
we'd accumulate round-off error in adding up the segments and end up with
an overly long last segment (which of course would voilate the error
max). This was the cause of the linked bug and also some issues with vias
that we had fudged in the past with extra clearance.
Fixes https://gitlab.com/kicad/code/kicad/issues/5567
Partititioning small polygons causes excessive partitions when we use a
fixed number of cells per side. Partitioning by size keeps the
partition count limited and speeds the calculations.
Also adds an option to not partition the grid for elements (like 3d
raytracing) that do not need it.
Fixes https://gitlab.com/kicad/code/kicad/issues/5579
The use of printf, wxLogDebug, and std::err/std::out causes excessive
debugging output which makes finding specific debugging messages more
difficult than it needs to be.
There is still some debugging output in test code that really needs to
be moved into a unit test.
Add debugging output section to the coding policy regarding debugging
output.
Remove some hacks related to postprocessing (not need now because the
previous postprocessing improvements, light parametrization could be
used for tune or future parameters could be implemented)
Implement blur based on depth weights.
Improve occlusion based on direct light/shadow it receives.
Improve occlusion mixing with the final color by using multiply instead
of subtract.
Remove debug and test code.
There were a lot of plotters, exporters, etc. that were rolling their
own implementations.
This also introduces a lazily-built set of SHAPE objects for doing
collision detection and some forms of rendering (and later DRC).
* Use GL vertex buffers and index buffers for 3D model rendering
* Use material or average vertex color for bounding boxes instead of red
* Reinstate bounding box rendering with GL vertex/index buffers
* Use compact vertex/index data representation
- 8-bit normals
- 8-bit colors
- 16-bit or 32-bit indices, depending on model size
This should improve performance a bit on lower end GPUs with less memory
and bandwidth.
Fixes#4112
Move the camera out to its own so that everything else is board-
related, and then rename BOARD_ADAPTER.
At some point the flags should probably be moved out too, and they
can have the EDA_3D_SETTINGS name.
Remove holes on Silk layer by default so the behaviour is the same
on OpenGL and Raytracing.
Fixes#1836
Fix raytracing shadow offset issue.
Some codestyle fix.
Rotating to 0 when above pi would result in the board spinning back
through pi to get there. This led to jarring motion.
Also fix an issue added in b6f64815 where the board would rotate
2pi when crossing over the 0-2pi boundary.
* Split up the thirdparty code into the thirdparty folder (#3637)
* Create a new kimath static library containing all the math functions
This is part of cleaning the build system for #1906.
Given that we compare the dot product (square of length) to s_min_dot,
it means that s_min_dot also needs to be square, or we wind up
converting line segments into circles that are visually distinct from
circles, leading to gaps in polylines.
A few files snuck in with CRLF for the line endings. These make it hard
to look at diffs as every line appears to have changed. This commit
makes only line ending changes, so can be ignored
This removes the remaining hard-coded segments counts and replaces them
with the relative error calculation where the segments per arc is
determined by the maximum error we allow (smaller arcs = fewer segments)
Provide a toolkit-agnostic interface for "busy indicators", which
allows the 3D viewer to show a busy cursor, without the canvases
having to to know how a wxCursore works.
The motivation here is to decouple the 3D renderers from the WX
GUI system, as they can then be used when when there is not an
active window (e.g. for offscreen rendering).
Otherwise, attempting to use a wxBusyCursor without a GUI
available is an instant segfault.
The middle layer of the 3d contours does not need threading as it does
not have substantial calculations. It also contains has a few
wx*Asserts that may not be called from other than the main thread.
Rather than remove useful error checking, we remove excess threading.
Fixes: lp:1802940
* https://bugs.launchpad.net/kicad/+bug/1802940
In C3D_RENDER_OGL_LEGACY::setupMaterial(), the struct
m_materials (which is made up of floats and glm::vec3f's)
is initialised with a memset to 0. This is unsafe, as
floating point value representations in C++ are implementation-
defined (so 0 in memory is not 0-valued for sure).
Use empty-brace aggregate-initialisation, which does the right thing.
This commit finishes the removal of OpenMP from the KiCad codebase.
Removed in this commit are the OpenMP calls in 3d-viewer and
qa/polygon_triangulation as well as all references in CMakeLists.txt
std::thread is used instead for multithreaded computation
Replaces Poly2Tri with updated code to process polygons faster and more
robustly. Notably, we can now handle overlapping holes in the polygons,
allowing us to cache the triangulation of complex boards
glFinish is meant to ensure every aspect of the screen is fully-drawn
before continuing. This causes issues with certain chipsets (Intel
4-8k)
glFlush is more of a suggestion that CPU work is complete and the GPU
should complete its work in a "timely" fashion.
We add an additional glFinish call before getting a screenshot as this
will copy the actual data from the card buffer.
Fixes: lp:1775976
* https://bugs.launchpad.net/kicad/+bug/1775976
Mario Luzeiro
jean-pierre charras
Jeff Young
Seth Hillbrand
Wayne Stambaugh
Ian McInerney
Joshua Redstone
Simon Richter
Jon Evans
Emery Burhan
Oleg Endo
Fabien Corona
Mark Roszko
Michal Jahelka
Seth Hillbrand
Simon Schubert
Henner Zeller
John Beard
Maciej Suminski