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Options to clean/simplify convex hull generated from mesh

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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.
This commit is contained in:
PouleyKetchoupp
2021-07-07 12:14:12 -07:00
parent 56d7126864
commit 1de995ae99
10 changed files with 71 additions and 22 deletions
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8
modules/vhacd/register_types.cpp
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@ -32,7 +32,7 @@
#include "scene/resources/mesh.h"
#include "thirdparty/vhacd/public/VHACD.h"
static Vector<Vector<Face3>> convex_decompose(const Vector<Face3> &p_faces) {
static Vector<Vector<Face3>> convex_decompose(const Vector<Face3> &p_faces, int p_max_convex_hulls = -1) {
Vector<float> vertices;
vertices.resize(p_faces.size() * 9);
Vector<uint32_t> indices;
@ -47,8 +47,12 @@ static Vector<Vector<Face3>> convex_decompose(const Vector<Face3> &p_faces) {
}
}
VHACD::IVHACD *decomposer = VHACD::CreateVHACD();
VHACD::IVHACD::Parameters params;
if (p_max_convex_hulls > 0) {
params.m_maxConvexHulls = p_max_convex_hulls;
}
VHACD::IVHACD *decomposer = VHACD::CreateVHACD();
decomposer->Compute(vertices.ptr(), vertices.size() / 3, indices.ptr(), indices.size() / 3, params);
int hull_count = decomposer->GetNConvexHulls();