diff options
Diffstat (limited to 'indra/newview/lllegacyatmospherics.cpp')
| -rw-r--r-- | indra/newview/lllegacyatmospherics.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/indra/newview/lllegacyatmospherics.cpp b/indra/newview/lllegacyatmospherics.cpp index 04623c4452..0c4e5b48e8 100644 --- a/indra/newview/lllegacyatmospherics.cpp +++ b/indra/newview/lllegacyatmospherics.cpp @@ -333,8 +333,17 @@ void LLAtmospherics::calcSkyColorWLVert(LLVector3 & Pn, AtmosphericsVars& vars) // temp2.x is 0 at the sun and increases away from sun temp2.mV[0] = llmax(temp2.mV[0], .001f); // Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot) - temp2.mV[0] *= glow.mV[0]; + + if (glow.mV[0] > 0) // don't pow(zero,negative value), glow from 0 to 2 + { // Higher glow.x gives dimmer glow (because next step is 1 / "angle") + temp2.mV[0] *= glow.mV[0]; + } + else + { + temp2.mV[0] = F32_MIN; + } + temp2.mV[0] = pow(temp2.mV[0], glow.mV[2]); // glow.z should be negative, so we're doing a sort of (1 / "angle") function |