fix: Update cube2mesh

trellis/representations/mesh/cube2mesh.py

@@ -10,7 +10,8 @@ from ...modules.sparse import SparseTensor
 from easydict import EasyDict as edict
 from .utils_cube import *
 from .flexicube import FlexiCubes
-
+import numpy as np
+import trimesh
 
 class MeshExtractResult:
     def __init__(self,