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-rw-r--r--indra/llrender/llimagegl.cpp14
1 files changed, 12 insertions, 2 deletions
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index dae759ca5f..00f0fd5b9a 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -1778,8 +1778,18 @@ BOOL LLImageGL::getMask(const LLVector2 &tc)
if (mPickMask)
{
- F32 u = tc.mV[0] - floorf(tc.mV[0]);
- F32 v = tc.mV[1] - floorf(tc.mV[1]);
+ F32 u,v;
+ if (LL_LIKELY(tc.isFinite()))
+ {
+ u = tc.mV[0] - floorf(tc.mV[0]);
+ v = tc.mV[1] - floorf(tc.mV[1]);
+ }
+ else
+ {
+ LL_WARNS_ONCE("render") << "Ugh, non-finite u/v in mask pick" << LL_ENDL;
+ u = v = 0.f;
+ llassert(false);
+ }
if (LL_UNLIKELY(u < 0.f || u > 1.f ||
v < 0.f || v > 1.f))