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make a copy of volData before computing the visual mesh

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This commit is contained in:
Seth Alves 2017-02-25 15:32:08 -08:00
parent e3dbc53643
commit 1e81edbaea
1 changed files with 40 additions and 27 deletions
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67
libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
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@ -40,6 +40,7 @@
#include <PolyVoxCore/SurfaceMesh.h>
#include <PolyVoxCore/SimpleVolume.h>
#include <PolyVoxCore/Material.h>
#include <PolyVoxCore/VolumeResampler.h>
#ifdef _WIN32
#pragma warning(pop)
#endif
@ -1128,36 +1129,48 @@ void RenderablePolyVoxEntityItem::getMesh() {
// A mesh object to hold the result of surface extraction
PolyVox::SurfaceMesh<PolyVox::PositionMaterialNormal> polyVoxMesh;
PolyVox::SimpleVolume<uint8_t>* volData = nullptr;
entity->withReadLock([&] {
PolyVox::SimpleVolume<uint8_t>* volData = entity->getVolData();
switch (voxelSurfaceStyle) {
case PolyVoxEntityItem::SURFACE_EDGED_MARCHING_CUBES: {
PolyVox::MarchingCubesSurfaceExtractor<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_MARCHING_CUBES: {
PolyVox::MarchingCubesSurfaceExtractor<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_EDGED_CUBIC: {
PolyVox::CubicSurfaceExtractorWithNormals<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_CUBIC: {
PolyVox::CubicSurfaceExtractorWithNormals<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
}
PolyVox::SimpleVolume<uint8_t>* entityVolData = entity->getVolData();
PolyVox::Region region = entityVolData->getEnclosingRegion();
volData = new PolyVox::SimpleVolume<uint8_t>(region);
volData->setBorderValue(255);
PolyVox::VolumeResampler<PolyVox::SimpleVolume<uint8_t>,
PolyVox::SimpleVolume<uint8_t>> copier =
PolyVox::VolumeResampler<PolyVox::SimpleVolume<uint8_t>,
PolyVox::SimpleVolume<uint8_t>>(entityVolData, region, volData, region);
copier.execute();
});
switch (voxelSurfaceStyle) {
case PolyVoxEntityItem::SURFACE_EDGED_MARCHING_CUBES: {
PolyVox::MarchingCubesSurfaceExtractor<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_MARCHING_CUBES: {
PolyVox::MarchingCubesSurfaceExtractor<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_EDGED_CUBIC: {
PolyVox::CubicSurfaceExtractorWithNormals<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
case PolyVoxEntityItem::SURFACE_CUBIC: {
PolyVox::CubicSurfaceExtractorWithNormals<PolyVox::SimpleVolume<uint8_t>> surfaceExtractor
(volData, volData->getEnclosingRegion(), &polyVoxMesh);
surfaceExtractor.execute();
break;
}
}
delete volData;
// convert PolyVox mesh to a Sam mesh
const std::vector<uint32_t>& vecIndices = polyVoxMesh.getIndices();
auto indexBuffer = std::make_shared<gpu::Buffer>(vecIndices.size() * sizeof(uint32_t),