[Bf-blender-cvs] [1cc11e32e4a] blender-v3.3-release: Fix: Avoid OBJ importer assert seting normals on mesh with no faces

[Hans Goudey]

Commit: 1cc11e32e4acefa095b5a851d49172c0972fc261
Author: Hans Goudey
Date:   Wed Aug 3 16:59:03 2022 -0500
Branches: blender-v3.3-release
https://developer.blender.org/rB1cc11e32e4acefa095b5a851d49172c0972fc261

Fix: Avoid OBJ importer assert seting normals on mesh with no faces

===================================================================

M	source/blender/io/wavefront_obj/importer/obj_import_mesh.cc

===================================================================

diff --git a/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc b/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
index 6f66ce5a6bd..d7b2bc2e67c 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
+++ b/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
@@ -323,6 +323,10 @@ void MeshFromGeometry::create_normals(Mesh *mesh)
   if (global_vertices_.vertex_normals.is_empty()) {
     return;
   }
+  /* Custom normals can only be stored on face corners. */
+  if (mesh_geometry_.total_loops_ == 0) {
+    return;
+  }
 
   float(*loop_normals)[3] = static_cast<float(*)[3]>(
       MEM_malloc_arrayN(mesh_geometry_.total_loops_, sizeof(float[3]), __func__));