v-ray render adds "steps" in my smooth surface

[claude_limardi]

when i render my scene, v-ray doesn't draw the surface correctly, it distorts the geometry. Please help me !

[Micha]

Is your model far away from the Rhino origin (0,0,0,)? If yes, than move it to the origin.

[claude_limardi]

Yes! I used a lidar cloud and it was very far away from the origin, i moved it to the origin and everything is good now. You helped me a lot ! Thanks so much