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-rwxr-xr-xindra/newview/llfloatermodelpreview.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
index 0c8fd33113..d55849d2fb 100755
--- a/indra/newview/llfloatermodelpreview.cpp
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -2705,6 +2705,12 @@ void LLModelLoader::processElement( daeElement* element, bool& badElement )
{
LLMatrix4 transformation = mTransform;
+ if (mTransform.determinant() < 0)
+ { //negative scales are not supported
+ llinfos << "Negative scale detected, unsupported transform. domInstance_geometry: " << LLModel::getElementLabel(instance_geo) << llendl;
+ badElement = true;
+ }
+
std::map<std::string, LLImportMaterial> materials = getMaterials(model, instance_geo);
// adjust the transformation to compensate for mesh normalization