Changed the way we serve static files on HF Spaces

app.py

@@ -9,8 +9,14 @@ import threading
 import uvicorn
 import time
 import requests
+from pathlib import Path
 from backend.main import app as fastapi_app
 
+# Set up static paths for Gradio to serve model files
+# This makes files accessible at /gradio_api/file=<path>
+MODELS_DIR = Path(__file__).parent / "models"
+gr.set_static_paths(paths=[str(MODELS_DIR)])
+
 # Get base URLs from environment
 # Auto-detect HF Spaces environment
 FASTAPI_INTERNAL = "http://localhost:8000"  # Always use localhost for internal calls
@@ -112,8 +118,12 @@ def get_viewer_html(scene_id="welcome"):
         return '<div style="color: red;">Scene not found</div>'
 
     # Add the static assets base URL for model loading
-    # On local dev: http://localhost:8000, on HF Spaces: empty (relative)
-    scene_data["static_base_url"] = FASTAPI_INTERNAL if not IS_HF_SPACES else ""
+    # On local dev: FastAPI serves at /static/models/
+    # On HF Spaces: Gradio serves via set_static_paths at /file/models/
+    if IS_HF_SPACES:
+        scene_data["static_base_url"] = f"/file={MODELS_DIR}/"
+    else:
+        scene_data["static_base_url"] = f"{FASTAPI_INTERNAL}/static/models/"
 
     # Read the viewer HTML template
     viewer_path = os.path.join(os.path.dirname(__file__), "frontend", "game_viewer.html")

backend/storage.py

@@ -81,13 +81,14 @@ def initialize_default_scene():
     )
 
     # Hugging Face emoji model at center (animated)
+    # model_path is relative - will be resolved by viewer based on environment
     objects = [
         create_game_object(
             object_type="model",
             name="HuggingFace",
             position=create_vector3(0, 1.5, 0),
             scale=create_vector3(3, 3, 3),
-            model_path="/static/models/Norod78/huggingface_emoji.glb",
+            model_path="Norod78/huggingface_emoji.glb",
             metadata={"animate": True, "baseY": 1.5},
         ),
     ]