iJewel3D Docs

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Screen Space Contact Shadows ​

Screen Space Contact Shadows add fine shadows where surfaces meet or nearly touch — prongs on a stone, a ring band on a surface, chain links against each other. These micro-shadows make jewelry look grounded and physically present.

Where to Find It ​

This section is located on the right panel, inside the Post ProcessingPost Processing tab, in the Screen Space Contact Shadows section.

Screen Space Contact Shadows settings

Settings ​

Enable
checkbox
Toggles Screen Space Contact Shadows on or off
Radius
slider
Max distance for contact shadows — keep small for realistic results
Intensity
slider
How dark the contact shadows are
Tolerance
slider
Depth comparison tolerance — reduces false shadows on flat surfaces
Debug Only SSCS
checkbox
Shows only contact shadows — use to fine-tune, then disable
Step Count
slider
Ray marching steps — more steps = more precise but slower

Using Debug Mode

Enable Debug Only SSCS to isolate and visualize just the contact shadows. This makes it easy to see where shadows are appearing and adjust Radius, Intensity, and Step Count before disabling debug to see the full render.