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Options to clean/simplify convex hull generated from mesh

Browse source 
Clean: remove duplicate and interior vertices (uses Bullet algorithm)
Simplify: modify the geometry for further simplification (uses VHACD
algorithm)

In the editor, single convex hull now uses the clean option.
Added a new editor entry to create a simplified convex hull, can be
useful for creating convex hull from highly tessellated triangle meshes.

Specific change for 3.x:
Add support for Vector<Vector3> and PoolVector<Vector3> in the convex hull generator.
This commit is contained in:
PouleyKetchoupp 2021-07-09 15:31:05 -07:00
parent 66aadc2981
commit 240c33708c
11 changed files with 88 additions and 23 deletions
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12
core/math/convex_hull.cpp
View file

@ -2249,14 +2249,22 @@ real_t ConvexHullComputer::compute(const Vector3 *p_coords, int32_t p_count, rea
}
Error ConvexHullComputer::convex_hull(const Vector<Vector3> &p_points, Geometry::MeshData &r_mesh) {
return convex_hull(p_points.ptr(), p_points.size(), r_mesh);
}
Error ConvexHullComputer::convex_hull(const PoolVector<Vector3> &p_points, Geometry::MeshData &r_mesh) {
return convex_hull(p_points.read().ptr(), p_points.size(), r_mesh);
}
Error ConvexHullComputer::convex_hull(const Vector3 *p_points, int32_t p_point_count, Geometry::MeshData &r_mesh) {
r_mesh = Geometry::MeshData(); // clear
if (p_points.size() == 0) {
if (p_point_count == 0) {
return FAILED; // matches QuickHull
}
ConvexHullComputer ch;
ch.compute(p_points.ptr(), p_points.size(), -1.0, -1.0);
ch.compute(p_points, p_point_count, -1.0, -1.0);
r_mesh.vertices = ch.vertices;