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Fix MultiMeshInstance crash in navmesh baking when MultiMesh Resource is empty

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Fix MultiMeshInstance crash in navmesh baking when MultiMesh Resource is empty

(cherry picked from commit caceceab0819dca9da4ca3c268bc07ded933e332)
This commit is contained in:
smix8 2022-05-27 19:35:00 +02:00 committed by Relintai
parent 690b82ff41
commit 62e781b914
1 changed files with 10 additions and 8 deletions
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18
modules/navigation/navigation_mesh_generator.cpp
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@ -170,14 +170,16 @@ void NavigationMeshGenerator::_parse_geometry(const Transform &p_navmesh_xform,
if (Object::cast_to<MultiMeshInstance>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS) { if (Object::cast_to<MultiMeshInstance>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS) {
MultiMeshInstance *multimesh_instance = Object::cast_to<MultiMeshInstance>(p_node); MultiMeshInstance *multimesh_instance = Object::cast_to<MultiMeshInstance>(p_node);
Ref<MultiMesh> multimesh = multimesh_instance->get_multimesh(); Ref<MultiMesh> multimesh = multimesh_instance->get_multimesh();
Ref<Mesh> mesh = multimesh->get_mesh(); if (multimesh.is_valid()) {
if (mesh.is_valid()) { Ref<Mesh> mesh = multimesh->get_mesh();
int n = multimesh->get_visible_instance_count(); if (mesh.is_valid()) {
if (n == -1) { int n = multimesh->get_visible_instance_count();
n = multimesh->get_instance_count(); if (n == -1) {
} n = multimesh->get_instance_count();
for (int i = 0; i < n; i++) { }
_add_mesh(mesh, p_navmesh_xform * multimesh_instance->get_global_transform() * multimesh->get_instance_transform(i), p_vertices, p_indices); for (int i = 0; i < n; i++) {
_add_mesh(mesh, p_navmesh_xform * multimesh_instance->get_global_transform() * multimesh->get_instance_transform(i), p_vertices, p_indices);
}
} }
} }
} }