Fix output file format problem

OP_add_layer.py

@@ -135,7 +135,7 @@ class GPEXP_OT_split_to_scene(bpy.types.Operator):
             if err:
                 self.report({'ERROR'}, err)
                 return {"CANCELLED"}
-        
+
         elif self.mode == 'INDIVIDUAL':
             print('split selected object individually in separated scenes')
             errors = []

gen_vlayer.py

@@ -223,11 +223,11 @@ def connect_render_layer(rlayer, ng=None, out=None, frame=None):
     if groupout.links and groupout.links[0].to_node.type == 'OUTPUT_FILE':
         # if already connected to outfile just skip cause user might have customised the name
         return
-
-    slot_name = f'{lname}/{lname}_'
+    
     out_name = f'OUT_{obname}' # or get output from frame
     if not out:
         out = nodes.get(out_name)
+    
     if not out:
         # color = (0.2,0.3,0.5)
         out = fn.create_node('CompositorNodeOutputFile', tree=node_tree, location=(fn.real_loc(ng)[0]+500, fn.real_loc(ng)[1]+50), width=600) # =(ng.location[0]+600, ng.location[1]+50)
@@ -240,6 +240,13 @@ def connect_render_layer(rlayer, ng=None, out=None, frame=None):
         else:
             out.base_path = f'//render/{out_base}'
 
+    if out.format.file_format == 'OPEN_EXR_MULTILAYER':
+        # Direct name in multilayer
+        slot_name = lname
+    else:
+        # base_path/ named_folder/image_####
+        slot_name = f'{lname}/{lname}_'
+
     ## out_input = out.inputs.get(slot_name) # ok for non-numbered outputs
 
     out_input = None