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Table Of Contents
You can select both Receives Shadows and Shadows Only, which makes the object invisible
except for the regions where a shadow is cast upon it.
Shadows and Complex 3D Objects
When using shadows with objects such as particle systems, text objects, or replicators
that are set to 3D, shadows are cast from one part of the object onto another part. This
is called self-shadowing.
1280 Chapter 21 3D Compositing