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authorGraham Madarasz <graham@lindenlab.com>2013-06-12 09:16:19 -0700
committerGraham Madarasz <graham@lindenlab.com>2013-06-12 09:16:19 -0700
commitd2b253f1f6072beead770519849ad3b18a1a4359 (patch)
treec50dcc7ea602746d156e24a9127721a95f640007 /indra/newview/pipeline.cpp
parent48324a93833cee8aca7559588ee5f2b4afa250fa (diff)
Changes to protect against use of normalize3fast on degenerate vectors
Diffstat (limited to 'indra/newview/pipeline.cpp')
-rwxr-xr-xindra/newview/pipeline.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 05ef8060d4..72912db041 100755
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -10569,11 +10569,13 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
LLVector4a left;
left.load3(camera.getLeftAxis().mV);
left.mul(left);
+ llassert(left.dot3(left).getF32() > F_APPROXIMATELY_ZERO);
left.normalize3fast();
LLVector4a up;
up.load3(camera.getUpAxis().mV);
up.mul(up);
+ llassert(up.dot3(up).getF32() > F_APPROXIMATELY_ZERO);
up.normalize3fast();
tdim.mV[0] = fabsf(half_height.dot3(left).getF32());