Update app.py

app.py

@@ -76,8 +76,9 @@ def process_sketch(canvas_data, binary_matrixes):
   return [gr.update(visible=True), binary_matrixes, *visibilities, *colors]
 
 def process_generation(model, binary_matrixes, boostrapping, aspect, steps, seed, master_prompt, negative_prompt, *prompts):
+    global sd
     if(model != "stabilityai/stable-diffusion-2-1-base"):
-      sd = MultiDiffusion("cuda",model)
+      sd = MultiDiffusion("cuda", model)
     if(seed == -1):
       seed = random.randint(1, 2147483647)
     seed_everything(seed)