From e285d515d5b94acce280edf586a16272931749d9 Mon Sep 17 00:00:00 2001
From: Graham Linden <graham@lindenlab.com>
Date: Thu, 26 Sep 2013 11:32:57 -0700
Subject: NORSPEC-281 bring back a classic normal generation fix from runitai's
personal collection
---
indra/llmath/llvolume.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index 2b865b4a8e..f74c934b21 100755
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -166,7 +166,8 @@ void calc_tangent_from_triangle(
F32 rd = s1*t2-s2*t1;
- float r = ((rd*rd) > FLT_EPSILON) ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
+ float r = ((rd*rd) > FLT_EPSILON) ? (1.0f / rd)
+ : ((rd > 0.0f) ? 1024.f : -1024.f); //some made up large ratio for division by zero
llassert(llfinite(r));
llassert(!llisnan(r));
@@ -6789,7 +6790,8 @@ void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVe
F32 rd = s1*t2-s2*t1;
- float r = ((rd*rd) > FLT_EPSILON) ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
+ float r = ((rd*rd) > FLT_EPSILON) ? (1.0f / rd)
+ : ((rd > 0.0f) ? 1024.f : -1024.f); //some made up large ratio for division by zero
llassert(llfinite(r));
llassert(!llisnan(r));
--
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