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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.

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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10
scene/3d/mesh_instance.cpp
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@@ -611,12 +611,12 @@ void MeshInstance::create_multiple_convex_collisions() {
}
}
Node *MeshInstance::create_convex_collision_node() {
Node *MeshInstance::create_convex_collision_node(bool p_clean, bool p_simplify) {
if (mesh.is_null()) {
return nullptr;
}
Ref<Shape> shape = mesh->create_convex_shape();
Ref<Shape> shape = mesh->create_convex_shape(p_clean, p_simplify);
if (shape.is_null()) {
return nullptr;
}
@@ -628,8 +628,8 @@ Node *MeshInstance::create_convex_collision_node() {
return static_body;
}
void MeshInstance::create_convex_collision() {
StaticBody *static_body = Object::cast_to<StaticBody>(create_convex_collision_node());
void MeshInstance::create_convex_collision(bool p_clean, bool p_simplify) {
StaticBody *static_body = Object::cast_to<StaticBody>(create_convex_collision_node(p_clean, p_simplify));
ERR_FAIL_COND(!static_body);
static_body->set_name(String(get_name()) + "_col");
@@ -841,7 +841,7 @@ void MeshInstance::_bind_methods() {
ClassDB::set_method_flags("MeshInstance", "create_trimesh_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("create_multiple_convex_collisions"), &MeshInstance::create_multiple_convex_collisions);
ClassDB::set_method_flags("MeshInstance", "create_multiple_convex_collisions", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("create_convex_collision"), &MeshInstance::create_convex_collision);
ClassDB::bind_method(D_METHOD("create_convex_collision", "clean", "simplify"), &MeshInstance::create_convex_collision, DEFVAL(true), DEFVAL(false));
ClassDB::set_method_flags("MeshInstance", "create_convex_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("_mesh_changed"), &MeshInstance::_mesh_changed);
ClassDB::bind_method(D_METHOD("_update_skinning"), &MeshInstance::_update_skinning);