3DPrinting/PrusaSlicer-NonPlainar
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Do mesh booleans with cgal if possible.

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This commit is contained in:
tamasmeszaros 2022-10-21 17:55:30 +02:00
parent 2a8c9d7462
commit 191f04568d
5 changed files with 80 additions and 29 deletions
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44
src/libslic3r/SLAPrintSteps.cpp
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@ -18,11 +18,13 @@
#include <libslic3r/SlicesToTriangleMesh.hpp>
#include <libslic3r/CSGMesh/ModelToCSGMesh.hpp>
#include <libslic3r/CSGMesh/SliceCSGMesh.hpp>
#include <libslic3r/CSGMesh/VoxelizeCSGMesh.hpp>>
#include <libslic3r/CSGMesh/PerformCSGMeshBooleans.hpp>
#include <libslic3r/OpenVDBUtils.hpp>
#include <libslic3r/QuadricEdgeCollapse.hpp>
#include <libslic3r/ClipperUtils.hpp>
#include <libslic3r/ShortEdgeCollapse.hpp>
//#include <libslic3r/ShortEdgeCollapse.hpp>
#include <boost/log/trivial.hpp>
@ -128,48 +130,50 @@ void SLAPrint::Steps::apply_printer_corrections(SLAPrintObject &po, SliceOrigin
}
}
void SLAPrint::Steps::generate_preview(SLAPrintObject &po, SLAPrintObjectStep step)
indexed_triangle_set SLAPrint::Steps::generate_preview_vdb(
SLAPrintObject &po, SLAPrintObjectStep step)
{
Benchmark bench;
bench.start();
// update preview mesh
double vscale = 1. / (2. * po.m_config.layer_height.getFloat());
auto voxparams = csg::VoxelizeParams{}
.voxel_scale(vscale)
.exterior_bandwidth(1.f)
.interior_bandwidth(1.f);
auto grid = csg::voxelize_csgmesh(range(po.m_mesh_to_slice), voxparams);
indexed_triangle_set m = grid_to_mesh(*grid);
// if (!m.empty()) {
// // simplify mesh lossless
bench.stop();
// std::cout << "simplify started" << std::endl;
// int expected_cnt = m.indices.size() * 0.8; //std::pow(po.m_transformed_rmesh.volume() / std::pow(1./vscale, 3), 2./3.);
// std::cout << "expected triangles " << expected_cnt << std::endl;
// float err = std::pow(vscale, 3);
// its_quadric_edge_collapse(m, 0U, &err);
// std::cout << "simplify ended " << m.indices.size() << " triangles" << std::endl;
std::cout << "Preview gen took: " << bench.getElapsedSec() << std::endl;
// std::cout << "cleanup started" << std::endl;
// its_compactify_vertices(m);
// its_merge_vertices(m);
// std::cout << "cleanup ended" << std::endl;
// }
return m;
}
po.m_preview_meshes[step] = TriangleMesh{std::move(m)};
void SLAPrint::Steps::generate_preview(SLAPrintObject &po, SLAPrintObjectStep step)
{
MeshBoolean::cgal::CGALMeshPtr cgalptr;
try {
cgalptr = csg::perform_csgmesh_booleans(range(po.m_mesh_to_slice));
} catch(...) {}
if (cgalptr) {
po.m_preview_meshes[step] = MeshBoolean::cgal::cgal_to_triangle_mesh(*cgalptr);
} else
po.m_preview_meshes[step] = TriangleMesh{generate_preview_vdb(po, step)};
for (size_t i = size_t(step) + 1; i < slaposCount; ++i)
{
po.m_preview_meshes[i] = {};
}
bench.stop();
std::cout << "Preview gen took: " << bench.getElapsedSec() << std::endl;
using namespace std::string_literals;
report_status(-2, "Reload preview from step "s + std::to_string(int(step)), SlicingStatus::RELOAD_SLA_PREVIEW);