Update app.py

app.py

@@ -13,7 +13,6 @@ model_list = ["stabilityai/stable-diffusion-xl-base-1.0",
 model_url_list = ["stabilityai/stable-diffusion-xl-base-1.0/blob/main/sd_xl_base_1.0.safetensors",
                  "Krebzonide/Colossus_Project_XL/blob/main/colossusProjectXLSFW_v202BakedVAE.safetensors",
                  "Krebzonide/Sevenof9_v3_sdxl/blob/main/nsfwSevenof9V3_nsfwSevenof9V3.safetensors"]
-current_model = -1
 
 vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16)
 pipe = None
@@ -50,17 +49,11 @@ def generate(prompt, neg_prompt, samp_steps, guide_scale, batch_size, seed, heig
     ).images
     return [(img, f"Image {i+1}") for i, img in enumerate(images)]
         
-def set_base_model(base_model_id):
+def set_base_model(base_model_id, progress=gr.Progress(track_tqdm=True)):
     global pipe
-    global current_model
     global model_list
     global model_url_list
     new_model = model_list.index(base_model_id)
-    if new_model == current_model:
-        return pipe
-    del pipe
-    torch.cuda.empty_cache()
-    gc.collect()
     model_url = "https://huggingface.co/" + model_url_list[new_model]
     pipe = StableDiffusionXLPipeline.from_single_file(
         model_url,
@@ -71,8 +64,10 @@ def set_base_model(base_model_id):
         use_auth_token="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"
     )
     pipe.to("cuda")
-    current_model = new_model
+    intro.close()
+    demo.launch(debug=True)
     return pipe
+    
 
 with gr.Blocks(css=css) as demo:
     with gr.Column():
@@ -88,13 +83,13 @@ with gr.Blocks(css=css) as demo:
             height = gr.Slider(label="Height", value=1024, minimum=512, maximum=2048, step=16)
             width = gr.Slider(label="Width", value=1024, minimum=512, maximum=2048, step=16)
         gallery = gr.Gallery(label="Generated images", height=800)
+    submit_btn.click(generate, [prompt, negative_prompt, samp_steps, guide_scale, batch_size, seed, height, width], [gallery], queue=True)
+
+with gr.Blocks(css=css) as intro:
+    with gr.Column():
         with gr.Row():
-            model_id = gr.Dropdown(model_list, label="model")
+            model_id = gr.Dropdown(model_list, label="model", value="stabilityai/stable-diffusion-xl-base-1.0")
             change_model_btn = gr.Button("Update Model", elem_classes="btn-green")
+    change_model_btn.click(set_base_model, [model_id])
 
-    submit_btn.click(generate, [prompt, negative_prompt, samp_steps, guide_scale, batch_size, seed, height, width], [gallery], queue=True)
-    change_model_btn.click(set_base_model, [model_id], queue = False)
-
-pipe = set_base_model(model_list[0])
-demo.queue(1)
-demo.launch(debug=True)
+intro.launch(debug=True)