diff options
| -rw-r--r-- | indra/newview/llvosky.cpp | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/indra/newview/llvosky.cpp b/indra/newview/llvosky.cpp index 678f1fe748..96363045d3 100644 --- a/indra/newview/llvosky.cpp +++ b/indra/newview/llvosky.cpp @@ -1212,10 +1212,19 @@ bool LLVOSky::updateHeavenlyBodyGeometry(LLDrawable *drawable, F32 scale, const S32 index_offset; LLFace *facep; + LLQuaternion rot = hb.getRotation(); - LLVector3 to_dir = LLVector3::x_axis * rot; - LLVector3 hb_right = LLVector3::y_axis_neg * rot; - LLVector3 hb_up = LLVector3::z_axis * rot; + LLVector3 to_dir = LLVector3::x_axis * rot; + + LLVector3 hb_right = to_dir % LLVector3::z_axis; + LLVector3 hb_up = hb_right % to_dir; + + // at zenith so math below fails spectacularly + if ((to_dir * LLVector3::z_axis) > 0.99f) + { + hb_right = LLVector3::y_axis_neg * rot; + hb_up = LLVector3::z_axis * rot; + } LLVector3 draw_pos = to_dir * HEAVENLY_BODY_DIST; |