hollowing params renamed, filtering generalized

src/libslic3r/SLA/Hollowing.cpp

@@ -0,0 +1,55 @@
+#include "Hollowing.hpp"
+#include <openvdb/tools/Filter.h>
+#include <openvdb/tools/LevelSetRebuild.h>
+#include <openvdb/tools/LevelSetFilter.h>
+#include <functional>
+
+namespace Slic3r {
+namespace sla {
+
+namespace {
+
+void filter_grid_sla(openvdb::FloatGrid &grid, double scale, double /*thickness*/, double flatness)
+{
+    static const double ROUNDNESS_COEFF = 1.;
+    
+    // Filtering:
+    if (flatness > 0.) {
+        double rounding = ROUNDNESS_COEFF * flatness;
+        int width = int(rounding * scale);
+        int count = 1;
+        openvdb::tools::Filter<openvdb::FloatGrid>{grid}.gaussian(width, count);
+    }
+}
+//    openvdb::tools::levelSetRebuild(grid, -float(thickness * 2));
+//    filter_grid_sla(grid, scale, thickness, flatness);
+
+//    openvdb::tools::levelSetRebuild(grid, float(thickness));
+
+
+void redist_grid_sla(openvdb::FloatGrid &grid, double scale, double thickness, double flatness)
+{
+//    openvdb::tools::levelSetRebuild(grid, -float(scale * thickness));
+    
+    
+    openvdb::tools::LevelSetFilter<openvdb::FloatGrid> filt{grid};
+    
+//    filt.gaussian(int(flatness * scale));
+    
+//    openvdb::tools::levelSetRebuild(grid, float(scale * thickness));
+    //grid = openvdb::tools::topologyToLevelSet(grid);
+}
+
+}
+
+TriangleMesh generate_interior(const TriangleMesh &mesh,
+                               double              min_thickness,
+                               double              quality,
+                               double              flatness)
+{
+    namespace plc = std::placeholders;
+    auto filt = std::bind(filter_grid_sla, plc::_1, plc::_2, plc::_3, flatness);
+    return hollowed_interior(mesh, min_thickness, quality, filt);
+}
+
+}} // namespace Slic3r::sla