Update imports in inference.py to include zipfile and nvdiffrast for enhanced mesh processing capabilities and improved functionality.

inference.py

@@ -2,12 +2,13 @@ import numpy as np
 import torch
 import time
 import tempfile
-import os
-from PIL import Image
-import trimesh
+import zipfile
+import nvdiffrast.torch as dr
+
 from util.utils import get_tri
 from mesh import Mesh
 from util.renderer import Renderer
+from kiui.mesh_utils import clean_mesh  
 
 
 def generate3d(model, rgb, ccm, device):