From 01f595d8716f7b80ab0088d93434fa77cc812c16 Mon Sep 17 00:00:00 2001
From: Graham Madarasz <graham@lindenlab.com>
Date: Tue, 11 Jun 2013 12:02:54 -0700
Subject: [PATCH] Speculative fix for tangent calc asserts on Mac
---
indra/llmath/llvolume.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index f9dd843b92..1932272afb 100755
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -7252,7 +7252,7 @@ void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVe
F32 rd = s1*t2-s2*t1;
- float r = rd*rd > 0.f ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
+ float r = ((rd*rd) > FLT_EPSILON) ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
llassert(llfinite(r));
llassert(!llisnan(r));
@@ -7276,7 +7276,7 @@ void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVe
LLVector4a n = normal[a];
const LLVector4a& t = tan1[a];
-
+
llassert(tan1[a].getLength3().getF32() >= 0.f);
llassert(tan2[a].getLength3().getF32() >= 0.f);
--
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