Add preferences with default templates with option to set them from env (falling back to prefs) at startup

change default templates to use label instead of name

properties.py

@@ -10,7 +10,7 @@ class RT_PG_render_toolbox_props(PropertyGroup):
         name="Base Path Template",
         description="Template for file output base path\
             \nFolder containing subsequent filepath",
-        default="//render/{node_name}/",
+        default="//render/{node_label}/",
         # options={'SKIP_SAVE'}
     )
 
@@ -19,7 +19,7 @@ class RT_PG_render_toolbox_props(PropertyGroup):
         name="Base Path Template",
         description="Template for multilayer file output base paths\
             \nOutput of the file sequence",
-        default="//render/{node_name}/{node_name}_",
+        default="//render/{node_label}/{node_label}_",
         # options={'SKIP_SAVE'}
     )
 
@@ -58,15 +58,28 @@ class RT_PG_render_toolbox_props(PropertyGroup):
     #     # options={'SKIP_SAVE'}
     # )
 
-def set_env_properties():
-    ## set default template from environment variable if available
+def reset_scene_path_templates():
+    ## set default template from environment variable if available, or fallback to preferences defaults
+    prefs = bpy.context.preferences.addons[__package__].preferences
+    if not prefs.use_env_base_path_templates:
+        # set from preferences
+        bpy.context.scene.render_toolbox.default_base_path = prefs.base_path_template
+        bpy.context.scene.render_toolbox.default_multilayer_base_path = prefs.base_path_multilayer_template
+        return
+
+    # set from environment variables (fallback to preferences if not set)
     exr_base_path_template = os.getenv('RENDERTOOLBOX_EXR_PATH_TEMPLATE')
     if exr_base_path_template:
         bpy.context.scene.render_toolbox.default_base_path = exr_base_path_template
+    else:
+        bpy.context.scene.render_toolbox.default_base_path = prefs.base_path_template
     
     multilayer_base_path_template = os.getenv('RENDERTOOLBOX_MULTILAYER_PATH_TEMPLATE')
     if multilayer_base_path_template:
         bpy.context.scene.render_toolbox.default_multilayer_base_path = multilayer_base_path_template
+    else:
+        bpy.context.scene.render_toolbox.default_multilayer_base_path = prefs.base_path_multilayer_template
+
 
 classes = (
     RT_PG_render_toolbox_props,
@@ -77,7 +90,7 @@ def register():
         bpy.utils.register_class(cls)
     
     bpy.types.Scene.render_toolbox = bpy.props.PointerProperty(type=RT_PG_render_toolbox_props)
-    # set_env_properties() # restricted context error when trying assignation here (probably need handler)
+    # reset_scene_path_templates() # restricted context error when trying assignation here (probably need handler)
 
 def unregister():
     del bpy.types.Scene.render_toolbox