mesh.validate() now returns True if any corrections were made.

tested that correcting invalid meshes works by generating random meshes and checking that only the first call to mesh.validate() makes changes.

found 2 bugs in mesh validation.
- face sorting array wasn't assigned correct indices.
- removing invalid edges used wrong comparison.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_mesh_api.c b/source/blender/makesrna/intern/rna_mesh_api.c
index dd78e93835e..3090f8512e0 100644
--- a/source/blender/makesrna/intern/rna_mesh_api.c
+++ b/source/blender/makesrna/intern/rna_mesh_api.c
@@ -59,7 +59,10 @@ void RNA_api_mesh(StructRNA *srna)
 	RNA_def_function_flag(func, FUNC_USE_CONTEXT);
 
 	func= RNA_def_function(srna, "validate", "BKE_mesh_validate");
-	RNA_def_function_ui_description(func, "validate geometry.");
+	RNA_def_function_ui_description(func, "validate geometry, return True when the mesh has had invalid geometry corrected/removed.");
+	parm= RNA_def_boolean(func, "verbose", 0, "Verbose", "Output information about the errors found");
+	parm= RNA_def_boolean(func, "result", 0, "Result", "");
+	RNA_def_function_return(func, parm);
 }
 
 #endif