Cycles CPU Rendering - funktioniert headless ohne EGL

app.py

@@ -26,6 +26,28 @@ def load_smollm3():
     return SMOLLM3_PIPE
 
 
+def render_scene() -> str:
+    """Render with Cycles CPU (works headless)"""
+    output_dir = tempfile.mkdtemp()
+    render_path = f"{output_dir}/render_{uuid.uuid4().hex[:8]}.png"
+
+    # Cycles CPU for headless
+    bpy.context.scene.render.engine = 'CYCLES'
+    bpy.context.scene.cycles.device = 'CPU'
+    bpy.context.scene.cycles.samples = 32
+
+    # Render settings
+    bpy.context.scene.render.filepath = render_path
+    bpy.context.scene.render.image_settings.file_format = 'PNG'
+    bpy.context.scene.render.resolution_x = 800
+    bpy.context.scene.render.resolution_y = 600
+    bpy.context.scene.render.resolution_percentage = 100
+
+    # Render
+    bpy.ops.render.render(write_still=True)
+    return render_path
+
+
 def export_glb() -> str:
     output_dir = tempfile.mkdtemp()
     glb_path = f"{output_dir}/scene_{uuid.uuid4().hex[:8]}.glb"
@@ -67,8 +89,8 @@ Only Python code, no explanations."""
         success = execute_bpy_code(result)
 
         if success:
-            glb_path = export_glb()
-            return f"Done!\n```python\n{result}\n```", glb_path
+            render_path = render_scene()
+            return f"Done!\n```python\n{result}\n```", render_path
         else:
             return f"Error:\n```python\n{result}\n```", None
 
@@ -79,8 +101,8 @@ Only Python code, no explanations."""
 with gr.Blocks(title="BPY Chat") as demo:
     gr.Markdown("## Blender Chat")
 
-    chatbot = gr.Chatbot(height=400)
-    model_output = gr.Model3D(label="3D Scene")
+    chatbot = gr.Chatbot(height=300)
+    render_output = gr.Image(label="Render Preview")
 
     with gr.Row():
         msg = gr.Textbox(placeholder="Describe a 3D scene...", show_label=False, scale=9)
@@ -89,12 +111,12 @@ with gr.Blocks(title="BPY Chat") as demo:
     def respond(message, chat_history):
         if not message.strip():
             return "", chat_history, None
-        response, glb_path = chat_with_blender(message, chat_history)
+        response, render_path = chat_with_blender(message, chat_history)
         chat_history.append((message, response))
-        return "", chat_history, glb_path
+        return "", chat_history, render_path
 
-    btn.click(respond, [msg, chatbot], [msg, chatbot, model_output])
-    msg.submit(respond, [msg, chatbot], [msg, chatbot, model_output])
+    btn.click(respond, [msg, chatbot], [msg, chatbot, render_output])
+    msg.submit(respond, [msg, chatbot], [msg, chatbot, render_output])
 
 
 if __name__ == "__main__":