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Diffstat (limited to 'indra/newview/llvowlsky.cpp')
| -rw-r--r-- | indra/newview/llvowlsky.cpp | 3 |
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()); |