From a06ee28aa650b8d0bf4f82175e30003c668e7968 Mon Sep 17 00:00:00 2001
From: "erwin.coumans" <erwin.coumans@08e121b0-ae19-0410-a57b-3be3395fd4fd>
Date: Wed, 30 Nov 2011 18:44:00 +0000
Subject: [PATCH] fix OpenCL kernel

---
 .../GpuSoftBodySolvers/OpenCL/OpenCLC10/PrepareLinks.cl    | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/PrepareLinks.cl b/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/PrepareLinks.cl
index ba3277667..72d46ccce 100644
--- a/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/PrepareLinks.cl
+++ b/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/PrepareLinks.cl
@@ -1,9 +1,5 @@
 MSTRINGIFY(
 
-float dot3(float4 a, float4 b)
-{
-   return a.x*b.x + a.y*b.y + a.z*b.z;
-}
 
 
 __kernel void 
@@ -29,8 +25,9 @@ PrepareLinksKernel(
 		float massLSC = g_linksMassLSC[linkID];
 		
 		float4 linkCurrentLength = nodePreviousPosition1 - nodePreviousPosition0;
+		linkCurrentLength.w = 0.f;
 		
-		float linkLengthRatio = dot3(linkCurrentLength, linkCurrentLength)*massLSC;
+		float linkLengthRatio = dot(linkCurrentLength, linkCurrentLength)*massLSC;
 		linkLengthRatio = 1.0f/linkLengthRatio;
 		
 		g_linksCurrentLength[linkID] = linkCurrentLength;