fix exporting with seperate_materials=False

Author: paroj

io_ogre/ogre/material.py

@@ -11,7 +11,7 @@
 import logging
 from itertools import chain
 
-def dot_materials(materials, path=None, separate_files=True):
+def dot_materials(materials, path=None, separate_files=True, prefix='mats', **kwargs):
     """
     generate material files, or copy them into a single file
 
@@ -29,6 +29,7 @@ def dot_materials(materials, path=None, separate_files=True):
         for mat in materials:
             dot_material(mat, path)
     else:
+        mat_file_name = prefix
         target_file = os.path.join(path, '%s.material' % mat_file_name)
         with open(target_file, 'wb') as fd:
             fd.write(bytes(MISSING_MATERIAL + "\n",'utf-8'))

io_ogre/ogre/scene.py

@@ -135,7 +135,7 @@ def _flatten( _c, _f ):
     if config.get("MATERIALS"):
         print ("  Processing Materials")
         materials = util.objects_merge_materials(meshes)
-        dot_materials(materials, path, separate_files=config.get('SEP_MATS'))
+        dot_materials(materials, path, separate_files=config.get('SEP_MATS'), prefix=prefix)
 
     doc = ogre_document(materials)