Update texture size parameter in vertex_color_to_uv_textured_glb function in inference.py from 768 to 640 for optimized performance.

inference.py

@@ -12,7 +12,7 @@ import xatlas
 import cv2
 from PIL import Image, ImageFilter
 
-def vertex_color_to_uv_textured_glb(obj_path, glb_path, texture_size=768):
+def vertex_color_to_uv_textured_glb(obj_path, glb_path, texture_size=640):
     mesh = trimesh.load(obj_path, process=False)
     vertex_colors = mesh.visual.vertex_colors[:, :3]  # (N, 3), uint8
     # Generate UVs