3DPrinting/PrusaSlicer-NonPlainar
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Fix hollowing crash when splitting broken object has zero parts.

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This commit is contained in:
tamasmeszaros 2020-09-16 11:08:58 +02:00
parent 4d5d1390f0
commit af785d1486
1 changed files with 12 additions and 9 deletions
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21
src/libslic3r/OpenVDBUtils.cpp
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@ -64,11 +64,6 @@ openvdb::FloatGrid::Ptr mesh_to_grid(const TriangleMesh &mesh,
float interiorBandWidth,
int flags)
{
// openvdb::initialize();
// return openvdb::tools::meshToVolume<openvdb::FloatGrid>(
// TriangleMeshDataAdapter{mesh}, tr, exteriorBandWidth,
// interiorBandWidth, flags);
openvdb::initialize();
TriangleMeshPtrs meshparts = mesh.split();
@ -83,15 +78,23 @@ openvdb::FloatGrid::Ptr mesh_to_grid(const TriangleMesh &mesh,
openvdb::FloatGrid::Ptr grid;
for (TriangleMesh *m : meshparts) {
auto gridptr = openvdb::tools::meshToVolume<openvdb::FloatGrid>(
auto subgrid = openvdb::tools::meshToVolume<openvdb::FloatGrid>(
TriangleMeshDataAdapter{*m}, tr, exteriorBandWidth,
interiorBandWidth, flags);
if (grid && gridptr) openvdb::tools::csgUnion(*grid, *gridptr);
else if (gridptr) grid = std::move(gridptr);
if (grid && subgrid) openvdb::tools::csgUnion(*grid, *subgrid);
else if (subgrid) grid = std::move(subgrid);
}
grid = openvdb::tools::levelSetRebuild(*grid, 0., exteriorBandWidth, interiorBandWidth);
if (grid) {
grid = openvdb::tools::levelSetRebuild(*grid, 0., exteriorBandWidth,
interiorBandWidth);
} else if(meshparts.empty()) {
// Splitting failed, fall back to hollow the original mesh
grid = openvdb::tools::meshToVolume<openvdb::FloatGrid>(
TriangleMeshDataAdapter{mesh}, tr, exteriorBandWidth,
interiorBandWidth, flags);
}
return grid;
}