diff options
Diffstat (limited to 'indra/newview/llface.cpp')
| -rw-r--r-- | indra/newview/llface.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp index c1776705f9..2c04224fa0 100644 --- a/indra/newview/llface.cpp +++ b/indra/newview/llface.cpp @@ -488,6 +488,11 @@ U16 LLFace::getGeometry(LLStrider<LLVector3> &vertices, LLStrider<LLVector3> &no return mGeomIndex; } +LLVector3 LLFace::getAverageNormal() +{ + return mAverageNormal; +} + void LLFace::updateCenterAgent() { if (mDrawablep->isActive()) @@ -1889,14 +1894,21 @@ BOOL LLFace::getGeometryVolume(const LLVolume& volume, F32* normals = (F32*) norm.get(); LLVector4a* src = vf.mNormals; LLVector4a* end = src+num_vertices; - + + LLVector4a normal_total; + while (src < end) { LLVector4a normal; mat_normal.rotate(*src++, normal); normal.store4a(normals); + normal_total.add(normal); normals += 4; } + + normal_total.div(LLVector4a(num_vertices)); + + mAverageNormal = LLVector3(normal_total[0], normal_total[1], normal_total[2]); } if (rebuild_tangent) |