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Refactor DDGI fallback radiance to use alpha for blending between fixed color and color at snapped location of the last cascade

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This means artists don't need to adjust the value anymore as it can cover vista geometry with GI at last cascade borders.
This commit is contained in:
Wojtek Figat
2026-01-05 16:22:00 +01:00
parent c5a28a5734
commit 11ea889fa9
6 changed files with 38 additions and 27 deletions
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2
Source/Engine/Graphics/Materials/MaterialShaderFeatures.cpp
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@@ -191,7 +191,7 @@ bool GlobalIlluminationFeature::Bind(MaterialShader::BindParameters& params, Spa
{
// Unbind SRVs to prevent issues
data.DDGI.CascadesCount = 0;
data.DDGI.FallbackIrradiance = Float3::Zero;
data.DDGI.FallbackIrradiance = Float4::Zero;
params.GPUContext->UnBindSR(srv + 0);
params.GPUContext->UnBindSR(srv + 1);
params.GPUContext->UnBindSR(srv + 2);