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, 5 insertions, 1 deletions

diff --git a/indra/newview/llenvironment.cpp b/indra/newview/llenvironment.cpp
index d88f0f9847..c59fad82a4 100644
--- a/indra/newview/llenvironment.cpp
+++ b/indra/newview/llenvironment.cpp
@@ -1758,7 +1758,11 @@ void LLEnvironment::updateGLVariablesForSettings(LLShaderUniforms* uniforms, con
             { // maximize and remove tinting if this is an irradiance map render pass and the parameter feeds into the sky background color
                 auto max_vec = [](LLVector4 col)
                 {
-                    col.mV[0] = col.mV[1] = col.mV[2] = llmax(llmax(col.mV[0], col.mV[1]), col.mV[2]);
+                    LLColor3 color(col);
+                    F32 h, s, l;
+                    color.calcHSL(&h, &s, &l);
+
+                    col.mV[0] = col.mV[1] = col.mV[2] = l;
                     return col;
                 };