I'm not seeing problems with your ZIP. This is rendered with V-Ray viewport IPR. I did have to add a Smooth modifier and set it to Smoothing Group 1, just to get nice smooth normals. TurboSmooth is set to 3 iterations. This is in 3ds Max 2024.2.1, with V-Ray 6.20.02. WIndows 11 Home, NVIDIA GeForce RTX 3080 Ti, 64GB RAM.…