RT hits and the lit shader let a lamp's own fixture shadow its light #1041

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opened 2026-10-25 03:56:05 +00:00 by sky_line · 1 comment

sky_line commented

2026-10-25 03:56:05 +00:00

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Found by the #1039 design survey (copies of the same code that have drifted apart). The shared walk library planned as #1039 step M0 removes the duplicate.

The own-fixture rule (#439 / #869: a point light's own lamp shade does not shadow or tint its light) exists only in the generic shadow core (clean_shadow_core.glsl). The other walk, traceShadowWalk, doesn't have it, so in ray-traced reflections, GI hits and the forward lit shader a lamp's shade can shadow its own light. Found by the #1039 design survey (copies of the same code that have drifted apart). The shared walk library planned as #1039 step M0 removes the duplicate.

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sky_line added this to the Slipstream project

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sky_line added a new dependency

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#1039 [Epic] Shared ray-traced visibility pass (ray queue) for shadows, GI, reflections and lit shaders

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2026-10-25 06:21:59 +00:00