3DPrinting/PrusaSlicer-NonPlainar
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Hotfix for hollowing issues

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This commit is contained in:
tamasmeszaros 2023-01-16 19:39:30 +01:00
parent 7e74f781c6
commit 7d6c2cad0a
6 changed files with 34 additions and 22 deletions
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6
src/libslic3r/CSGMesh/VoxelizeCSGMesh.hpp
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@ -37,7 +37,11 @@ inline void perform_csg(CSGType op, VoxelGridPtr &dst, VoxelGridPtr &src)
switch (op) {
case CSGType::Union:
grid_union(*dst, *src);
if (is_grid_empty(*dst) && !is_grid_empty(*src))
dst = clone(*src);
else
grid_union(*dst, *src);
break;
case CSGType::Difference:
grid_difference(*dst, *src);

5
src/libslic3r/OpenVDBUtils.cpp
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@ -300,4 +300,9 @@ void rescale_grid(VoxelGrid &grid, float scale)
// grid.grid.setTransform(tr);
}
bool is_grid_empty(const VoxelGrid &grid)
{
return grid.grid.empty();
}
} // namespace Slic3r

2
src/libslic3r/OpenVDBUtils.hpp
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@ -77,6 +77,8 @@ void grid_union(VoxelGrid &grid, VoxelGrid &arg);
void grid_difference(VoxelGrid &grid, VoxelGrid &arg);
void grid_intersection(VoxelGrid &grid, VoxelGrid &arg);
bool is_grid_empty(const VoxelGrid &grid);
} // namespace Slic3r
#endif // OPENVDBUTILS_HPP

17
src/libslic3r/SLA/Hollowing.cpp
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@ -75,11 +75,12 @@ InteriorPtr generate_interior(const VoxelGrid &vgrid,
const HollowingConfig &hc,
const JobController &ctl)
{
double offset = hc.min_thickness;
double D = hc.closing_distance;
float in_range = 1.1f * float(offset + D);
auto narrowb = 3.f / get_voxel_scale(vgrid);
float out_range = narrowb;
double voxsc = get_voxel_scale(vgrid);
double offset = hc.min_thickness; // world units
double D = hc.closing_distance; // world units
float in_range = 1.1f * float(offset + D); // world units
float out_range = 1.f / voxsc; // world units
auto narrowb = 1.f; // voxel units (voxel count)
if (ctl.stopcondition()) return {};
else ctl.statuscb(0, L("Hollowing"));
@ -91,12 +92,12 @@ InteriorPtr generate_interior(const VoxelGrid &vgrid,
double iso_surface = D;
if (D > EPSILON) {
in_range = narrowb;
gridptr = redistance_grid(*gridptr, -(offset + D), narrowb, in_range);
gridptr = redistance_grid(*gridptr, -(offset + D), narrowb, narrowb);
gridptr = dilate_grid(*gridptr, std::ceil(iso_surface), 0.f);
gridptr = dilate_grid(*gridptr, 1.1 * std::ceil(iso_surface), 0.f);
out_range = iso_surface;
in_range = narrowb / voxsc;
} else {
iso_surface = -offset;
}

24
src/libslic3r/SLA/Hollowing.hpp
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@ -91,15 +91,15 @@ inline InteriorPtr generate_interior(const indexed_triangle_set &mesh,
auto statusfn = [&ctl](int){ return ctl.stopcondition && ctl.stopcondition(); };
auto grid = mesh_to_grid(mesh, MeshToGridParams{}
.voxel_scale(voxel_scale)
.exterior_bandwidth(1.f)
.interior_bandwidth(1.f)
.exterior_bandwidth(3.f)
.interior_bandwidth(3.f)
.statusfn(statusfn));
if (!grid || (ctl.stopcondition && ctl.stopcondition()))
return {};
if (its_is_splittable(mesh))
grid = redistance_grid(*grid, 0.0f, 6.f / voxel_scale, 6.f / voxel_scale);
// if (its_is_splittable(mesh))
grid = redistance_grid(*grid, 0.0f, 3.f, 3.f);
return grid ? generate_interior(*grid, hc, ctl) : InteriorPtr{};
}
@ -132,11 +132,12 @@ InteriorPtr generate_interior(const Range<It> &csgparts,
const JobController &ctl = {})
{
double mesh_vol = csgmesh_positive_maxvolume(csgparts);
double voxsc = get_voxel_scale(mesh_vol, hc);
auto params = csg::VoxelizeParams{}
.voxel_scale(get_voxel_scale(mesh_vol, hc))
.exterior_bandwidth(1.f)
.interior_bandwidth(1.f)
.voxel_scale(voxsc)
.exterior_bandwidth(3.f)
.interior_bandwidth(3.f)
.statusfn([&ctl](int){ return ctl.stopcondition && ctl.stopcondition(); });
auto ptr = csg::voxelize_csgmesh(csgparts, params);
@ -144,11 +145,10 @@ InteriorPtr generate_interior(const Range<It> &csgparts,
if (!ptr || (ctl.stopcondition && ctl.stopcondition()))
return {};
if (csgparts.size() > 1 || its_is_splittable(*csg::get_mesh(*csgparts.begin())))
ptr = redistance_grid(*ptr,
0.0f,
6.f / params.voxel_scale(),
6.f / params.voxel_scale());
// TODO: figure out issues without the redistance
// if (csgparts.size() > 1 || its_is_splittable(*csg::get_mesh(*csgparts.begin())))
ptr = redistance_grid(*ptr, 0.0f, 3.f, 3.f);
return ptr ? generate_interior(*ptr, hc, ctl) : InteriorPtr{};
}

2
src/libslic3r/SLAPrint.cpp
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@ -13,7 +13,7 @@
#include <boost/filesystem/path.hpp>
#include <boost/log/trivial.hpp>
// #define SLAPRINT_DO_BENCHMARK
#define SLAPRINT_DO_BENCHMARK
#ifdef SLAPRINT_DO_BENCHMARK
#include <libnest2d/tools/benchmark.h>