Fix DDGI flickering on floors aligned to world axes

Apply a small bias to sample location and dither it a bit to smooth out.
2026-01-05 17:19:16 +01:00
parent 11ea889fa9
commit cf3bcc4549
2 changed files with 2 additions and 2 deletions
--- a/Source/Engine/Renderer/GI/DynamicDiffuseGlobalIllumination.cpp
+++ b/Source/Engine/Renderer/GI/DynamicDiffuseGlobalIllumination.cpp
@@ -376,7 +376,6 @@ bool DynamicDiffuseGlobalIlluminationPass::RenderInner(RenderContext& renderCont
        blendOrigins[cascadeIndex] = viewOrigin;
        const float viewOriginSnapping = cascadeProbesSpacing;
        viewOrigin = Float3::Floor(viewOrigin / viewOriginSnapping) * viewOriginSnapping;
-        viewOrigin -= UNITS_TO_METERS(0.5f); // Bias to avoid precision issues (eg. if floor mesh is exactly at Y=0)
        viewOrigins[cascadeIndex] = viewOrigin;
    }