Update app.py

app.py

@@ -22,6 +22,8 @@ sh("pip install -e .")
 sh("cd src/pixel3dmm/preprocessing/facer && pip install -e .")
 sh("cd src/pixel3dmm/preprocessing/PIPNet/FaceBoxesV2/utils && sh make.sh")
 
+from pixel3dmm import env_paths
+
 def install_cuda_toolkit():
     CUDA_TOOLKIT_URL = "https://developer.download.nvidia.com/compute/cuda/12.1.0/local_installers/cuda_12.1.0_530.30.02_linux.run"
     CUDA_TOOLKIT_FILE = "/tmp/%s" % os.path.basename(CUDA_TOOLKIT_URL)
@@ -42,6 +44,9 @@ def install_cuda_toolkit():
 
 install_cuda_toolkit()
 
+from pixel3dmm.tracking import nvdiffrast_util
+from pixel3dmm.tracking.renderer_nvdiffrast import NVDRenderer
+
 # Utility to stitch frames into a video
 def make_video_from_frames(frames_dir, out_path, fps=15):
     if not os.path.isdir(frames_dir):