From df94d0c778e63ce053cfd1fa4423b180bab6adfb Mon Sep 17 00:00:00 2001
From: prep <prep@lindenlab.com>
Date: Wed, 3 Aug 2011 17:01:34 -0400
Subject: Fixes for sh-2039, sh-1336, and sh-2044. Vertices were having
 incorrect weights assigned.

---
 indra/llprimitive/llmodel.cpp | 13 +++++++++++++
 indra/llprimitive/llmodel.h   | 23 ++++++++++-------------
 2 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp
index def276c808..d8e4d4a173 100644
--- a/indra/llprimitive/llmodel.cpp
+++ b/indra/llprimitive/llmodel.cpp
@@ -1679,6 +1679,19 @@ LLSD LLModel::writeModelToStream(std::ostream& ostr, LLSD& mdl, BOOL nowrite, BO
 
 LLModel::weight_list& LLModel::getJointInfluences(const LLVector3& pos)
 {
+	//1. If a vertex has been weighted then we'll find it via pos and return it's weight list
+	weight_map::iterator iterPos = mSkinWeights.begin();
+	weight_map::iterator iterEnd = mSkinWeights.end();
+	
+	for ( ; iterPos!=iterEnd; ++iterPos )
+	{
+		if ( jointPositionalLookup( iterPos->first, pos ) )
+		{
+			return iterPos->second;
+		}
+	}
+	
+	//2. Otherwise we'll use the older implementation
 	weight_map::iterator iter = mSkinWeights.find(pos);
 	
 	if (iter != mSkinWeights.end())
diff --git a/indra/llprimitive/llmodel.h b/indra/llprimitive/llmodel.h
index b5dd9bf87d..9a7b9fa271 100644
--- a/indra/llprimitive/llmodel.h
+++ b/indra/llprimitive/llmodel.h
@@ -219,20 +219,17 @@ public:
 	};
 
 	
-	struct JointPositionalCompare
+	//Are the doubles the same w/in epsilon specified tolerance
+	bool areEqual( double a, double b ) 
 	{
-		//Are the doubles the same w/in epsilon specified tolerance
-		bool areEqual( double a, double b )
-		{
-			const float epsilon = 1e-5f;
-			return (abs((int)(a - b)) < epsilon) && (a < b);
-		}
-		//Make sure that we return false for any values that are within the tolerance for equivalence
-		bool operator() ( const LLVector3& a, const LLVector3& b )
-		{
-			 return ( areEqual( a[0],b[0]) && areEqual( a[1],b[1] ) && areEqual( a[2],b[2]) ) ? false : true;		
-		}
-	};
+		const float epsilon = 1e-5f;
+		return (fabs((a - b)) < epsilon) ? true : false ;
+	}
+	//Make sure that we return false for any values that are within the tolerance for equivalence
+	bool jointPositionalLookup( const LLVector3& a, const LLVector3& b ) 
+	{
+		 return ( areEqual( a[0],b[0]) && areEqual( a[1],b[1] ) && areEqual( a[2],b[2]) ) ? true : false;
+	}
 
 	//copy of position array for this model -- mPosition[idx].mV[X,Y,Z]
 	std::vector<LLVector3> mPosition;
-- 
cgit v1.2.3