3D-printing/OrcaSlicer
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SLA auto supports: Work with support force deficit to sprinkle support points.

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Use OpenGL emissive material to render support points.
This commit is contained in:
bubnikv 2019-02-19 10:09:41 +01:00
parent cb4763bb32
commit 8b4bd7177b
4 changed files with 98 additions and 40 deletions
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20
src/libslic3r/SLA/SLAAutoSupports.hpp
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@ -18,8 +18,9 @@ public:
float density_at_45;
float minimal_z;
///////////////
float support_force = 30.f; // a force one point can support (arbitrary force unit)
float tear_pressure = 1.f; // pressure that the display exerts (the force unit per mm2)
// float support_force = 30.f; // a force one point can support (arbitrary force unit)
float support_force = 10.f; // a force one point can support (arbitrary force unit)
float tear_pressure = 1.f; // pressure that the display exerts (the force unit per mm2)
};
SLAAutoSupports(const TriangleMesh& mesh, const sla::EigenMesh3D& emesh, const std::vector<ExPolygons>& slices,
@ -43,13 +44,22 @@ public:
float height = 0;
// How well is this ExPolygon held to the print base?
// Positive number, the higher the better.
float supports_force = 0.f;
float supports_force_this_layer = 0.f;
float supports_force_inherited = 0.f;
float supports_force_total() const { return this->supports_force_this_layer + this->supports_force_inherited; }
#ifdef SLA_AUTOSUPPORTS_DEBUG
std::chrono::milliseconds unique_id;
#endif /* SLA_AUTOSUPPORTS_DEBUG */
#ifdef NDEBUG
// In release mode, use the optimized container.
boost::container::small_vector<Structure*, 4> islands_above;
boost::container::small_vector<Structure*, 4> islands_below;
#else
// In debug mode, use the standard vector, which is well handled by debugger visualizer.
std::vector<Structure*> islands_above;
std::vector<Structure*> islands_below;
#endif
ExPolygons dangling_areas;
ExPolygons overhangs;
float overhangs_area;
@ -80,6 +90,8 @@ public:
out.emplace_back(*below->polygon);
return out;
}
// Positive deficit of the supports. If negative, this area is well supported. If positive, more supports need to be added.
float support_force_deficit(const float tear_pressure) const { return this->area * tear_pressure - this->supports_force_total(); }
};
struct MyLayer {
@ -155,7 +167,7 @@ private:
float m_supports_force_total = 0.f;
void process(const std::vector<ExPolygons>& slices, const std::vector<float>& heights);
void uniformly_cover(const ExPolygon& island, Structure& structure, PointGrid3D &grid3d, bool is_new_island = false, bool just_one = false);
void uniformly_cover(const ExPolygons& islands, Structure& structure, PointGrid3D &grid3d, bool is_new_island = false, bool just_one = false);
void project_onto_mesh(std::vector<sla::SupportPoint>& points) const;
#ifdef SLA_AUTOSUPPORTS_DEBUG