When
using a coarse approximation of an object and imitating a smooth
surface (by bending normals away from the geometry normal) you may
find shadow artifacts.
To correct this try the
following:
- Use fine approximation to fit the surface
more precisely (see
Approximation styles)
- Disable Casts Shadows for the object
to avoid self-shadowing (see
Render Stats)
- Use a separate shadow casting object
to cast shadows onto other objects
- Adjust the Ray Offset attribute on a
per-object basis (see
Dynamic Attributes for Rendering)
- Use shadow maps with a Bias instead of
raytraced shadows, if possible (see
Shadow Map Attributes)