3DPrinting/PrusaSlicer-NonPlainar
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Do a mesh split before openvdb conversion, unify each part's grid

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Do a mesh redistance after the part splitting and openvdb csgUnion
This commit is contained in:
tamasmeszaros 2020-09-10 13:39:43 +02:00
parent b93c95274f
commit 7713a55d45
1 changed files with 30 additions and 4 deletions
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32
src/libslic3r/OpenVDBUtils.cpp
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@ -2,6 +2,7 @@
#include "OpenVDBUtils.hpp"
#include <openvdb/tools/MeshToVolume.h>
#include <openvdb/tools/VolumeToMesh.h>
#include <openvdb/tools/Composite.h>
#include <openvdb/tools/LevelSetRebuild.h>
//#include "MTUtils.hpp"
@ -57,17 +58,42 @@ void Contour3DDataAdapter::getIndexSpacePoint(size_t n,
// TODO: Do I need to call initialize? Seems to work without it as well but the
// docs say it should be called ones. It does a mutex lock-unlock sequence all
// even if was called previously.
openvdb::FloatGrid::Ptr mesh_to_grid(const TriangleMesh &mesh,
const openvdb::math::Transform &tr,
float exteriorBandWidth,
float interiorBandWidth,
int flags)
{
// openvdb::initialize();
// return openvdb::tools::meshToVolume<openvdb::FloatGrid>(
// TriangleMeshDataAdapter{mesh}, tr, exteriorBandWidth,
// interiorBandWidth, flags);
openvdb::initialize();
return openvdb::tools::meshToVolume<openvdb::FloatGrid>(
TriangleMeshDataAdapter{mesh}, tr, exteriorBandWidth,
TriangleMeshPtrs meshparts = mesh.split();
auto it = std::remove_if(meshparts.begin(), meshparts.end(),
[](TriangleMesh *m){
m->require_shared_vertices();
return !m->is_manifold() || m->volume() < EPSILON;
});
meshparts.erase(it, meshparts.end());
openvdb::FloatGrid::Ptr grid;
for (TriangleMesh *m : meshparts) {
auto gridptr = 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);
}
grid = openvdb::tools::levelSetRebuild(*grid, 0., exteriorBandWidth, interiorBandWidth);
return grid;
}
openvdb::FloatGrid::Ptr mesh_to_grid(const sla::Contour3D &mesh,