User Guide > Rendering and Render Setup > Rendering > Visualize and render images > Visualize scenes and render images > Troubleshooting Rendering >
Troubleshoot highlight artifacts close to object
edge
If you have tessellated an object with the Use Smooth Edgeattribute and you get artifacts in highlights along curved parts of the surface close to an edge, don’t use this attribute. This caused the curvature in the surface to be slightly different closer to the edge, which doesn’t work for strong highlights.