From 1b36b0425119ce1e96eeeb87af7f150a206e62b0 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Thu, 18 Aug 2011 14:41:34 -0500
Subject: SH-1180 Log which nodes are problematic when loading a .dae with
 mirrored meshes and report error.

---
 indra/newview/llfloatermodelpreview.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

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
-- 
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