Update app.py

app.py

@@ -143,11 +143,13 @@ def create_scene():
     world = bpy.context.scene.world
     if not world.use_nodes:
         world.use_nodes = True
-    tree = world.node_tree
-    bg_node = tree.nodes.new(type='ShaderNodeTexEnvironment')
-    bg_node.image = img
-    tree.links.new(bg_node.outputs[0], tree.nodes['Background'].inputs[0])
-
+    ##tree = world.node_tree
+    ##bg_node = tree.nodes.new(type='ShaderNodeTexEnvironment')
+    ##bg_node.image = img
+    ##tree.links.new(bg_node.outputs[0], tree.nodes['Background'].inputs[0])
+    bg_node = world.node_tree.nodes.get('Background')
+    bg_node.inputs['Color'].default_value = (0, 0, 0, 1)
+    
     bpy.data.objects['Cube'].select_set(True)
     bpy.ops.object.delete()
     bpy.data.objects['Camera'].select_set(True)