DRTVWR-559 Quality pass -- Fix sky banding, fix off-by-one-mip in reflection probes (thanks Rye), remove noiseMap from light shaders (removes speckles), make irradiance maps RGB16F instead of RGBA16. Use actual luminance for sky instead of max color component during irradiance map pass.

1 files changed, 1 insertions, 1 deletions

diff --git a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl
index b6f080739e..a1839d4a67 100644
--- a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl
+++ b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl
@@ -151,7 +151,7 @@ vec4 prefilterEnvMap(vec3 R)
 			// Solid angle of 1 pixel across all cube faces
 			float omegaP = 4.0 * PI / (6.0 * envMapDim * envMapDim);
 			// Biased (+1.0) mip level for better result
-			float mipLevel = roughness == 0.0 ? 0.0 : max(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f);
+			float mipLevel = roughness == 0.0 ? 0.0 : clamp(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f, max_probe_lod);
 			color += textureLod(reflectionProbes, vec4(L, sourceIdx), mipLevel) * dotNL;
 			totalWeight += dotNL;
 		}