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Shadows

Shadows. Testing for shadows. For each light source i If face is backface wrt light source (called self-shadowing ) Set IN-SHADOW to TRUE else Set IN-SHADOW to FALSE Construct ray from point to light source For each object Test ray-object intersection (between point and l.s.)

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Shadows

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  1. Shadows CSE 681

  2. Testing for shadows CSE 681

  3. For each light source i • If face is backface wrt light source (called self-shadowing) • Set IN-SHADOW to TRUE • else • Set IN-SHADOW to FALSE • Construct ray from point to light source • For each object • Test ray-object intersection (between point and l.s.) • If intersection found • Set IN-SHADOW to TRUE for this light source • Break out of object loop • If (NOT IN-SHADOW) add in effect of light source I • accumulate diffuse light • accumulate specular light Pseudo-code CSE 681

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