[Bf-extensions-cvs] [3a264229] master: FBX export: skip special properties when exporting custom properties

[Philipp Oeser]

Commit: 3a264229d2d37aee3c673545df122e41dc481723
Author: Philipp Oeser
Date:   Thu Dec 13 11:49:37 2018 +0100
Branches: master
https://developer.blender.org/rBA3a264229d2d37aee3c673545df122e41dc481723

FBX export: skip special properties when exporting custom properties

'_RNA_UI' (and rna runtime properties) should not be included, these
would have been included as string properties causing errors on reimport

backport rBAe4f4053de64e (fix for T59202) from 2.8 branch

Differential Revision: https://developer.blender.org/D4068

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

M	io_scene_fbx/export_fbx_bin.py

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

diff --git a/io_scene_fbx/export_fbx_bin.py b/io_scene_fbx/export_fbx_bin.py
index e82ceadd..ed1109e7 100644
--- a/io_scene_fbx/export_fbx_bin.py
+++ b/io_scene_fbx/export_fbx_bin.py
@@ -533,7 +533,17 @@ def fbx_data_element_custom_properties(props, bid):
     """
     Store custom properties of blender ID bid (any mapping-like object, in fact) into FBX properties props.
     """
-    for k, v in bid.items():
+    items = bid.items()
+
+    if not items:
+        return
+
+    rna_properties = {prop.identifier for prop in bid.bl_rna.properties if prop.is_runtime}
+
+    for k, v in items:
+        if k == '_RNA_UI' or k in rna_properties:
+            continue
+
         list_val = getattr(v, "to_list", lambda: None)()
 
         if isinstance(v, str):