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authorAndrey Lihatskiy <alihatskiy@productengine.com>2020-09-28 20:42:09 +0300
committerAndrey Lihatskiy <alihatskiy@productengine.com>2020-09-28 22:08:48 +0300
commita2cb61d9f4e7359e10135979e98e63e261679cab (patch)
treedb58930afa717eda4e5830743491585280ab826f /indra/newview/llvowlsky.cpp
parent6d014dde5e02f1e2991020ab38dc12ba943ea833 (diff)
parentbac6652cdcd2d8333df04c3ebd3a6a7b752328b3 (diff)
Merge branch 'master' into DRTVWR-507-maint
# Conflicts: # indra/newview/pipeline.cpp
Diffstat (limited to 'indra/newview/llvowlsky.cpp')
-rw-r--r--indra/newview/llvowlsky.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/indra/newview/llvowlsky.cpp b/indra/newview/llvowlsky.cpp
index 368a3f2335..d428cb1568 100644
--- a/indra/newview/llvowlsky.cpp
+++ b/indra/newview/llvowlsky.cpp
@@ -99,6 +99,9 @@ LLDrawable * LLVOWLSky::createDrawable(LLPipeline * pipeline)
inline F32 LLVOWLSky::calcPhi(U32 i)
{
+ // Calc: PI/8 * 1-((1-t^4)*(1-t^4)) { 0<t<1 }
+ // Demos: \pi/8*\left(1-((1-x^{4})*(1-x^{4}))\right)\ \left\{0<x\le1\right\}
+
// i should range from [0..SKY_STACKS] so t will range from [0.f .. 1.f]
F32 t = float(i) / float(getNumStacks());