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diff --git a/extern/bullet2/BulletMultiThreaded/SpuContactManifoldCollisionAlgorithm.cpp b/extern/bullet2/BulletMultiThreaded/SpuContactManifoldCollisionAlgorithm.cpp
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+++ b/extern/bullet2/BulletMultiThreaded/SpuContactManifoldCollisionAlgorithm.cpp
@@ -0,0 +1,69 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2007 Erwin Coumans  http://bulletphysics.com
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SpuContactManifoldCollisionAlgorithm.h"
+#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h"
+#include "BulletCollision/CollisionDispatch/btCollisionObject.h"
+#include "BulletCollision/CollisionShapes/btCollisionShape.h"
+#include "BulletCollision/CollisionShapes/btPolyhedralConvexShape.h"
+
+
+
+
+void SpuContactManifoldCollisionAlgorithm::processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut)
+{
+	btAssert(0);
+}
+
+btScalar SpuContactManifoldCollisionAlgorithm::calculateTimeOfImpact(btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut)
+{
+	btAssert(0);
+	return 1.f;
+}
+
+#ifndef __SPU__
+SpuContactManifoldCollisionAlgorithm::SpuContactManifoldCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1)
+:btCollisionAlgorithm(ci)
+#ifdef USE_SEPDISTANCE_UTIL
+,m_sepDistance(body0->getCollisionShape()->getAngularMotionDisc(),body1->getCollisionShape()->getAngularMotionDisc())
+#endif //USE_SEPDISTANCE_UTIL
+{
+	m_manifoldPtr = m_dispatcher->getNewManifold(body0,body1);
+	m_shapeType0 = body0->getCollisionShape()->getShapeType();
+	m_shapeType1 = body1->getCollisionShape()->getShapeType();
+	m_collisionMargin0 = body0->getCollisionShape()->getMargin();
+	m_collisionMargin1 = body1->getCollisionShape()->getMargin();
+	m_collisionObject0 = body0;
+	m_collisionObject1 = body1;
+
+	if (body0->getCollisionShape()->isPolyhedral())
+	{
+		btPolyhedralConvexShape* convex0 = (btPolyhedralConvexShape*)body0->getCollisionShape();
+		m_shapeDimensions0 = convex0->getImplicitShapeDimensions();
+	}
+	if (body1->getCollisionShape()->isPolyhedral())
+	{
+		btPolyhedralConvexShape* convex1 = (btPolyhedralConvexShape*)body1->getCollisionShape();
+		m_shapeDimensions1 = convex1->getImplicitShapeDimensions();
+	}
+}
+#endif //__SPU__
+
+
+SpuContactManifoldCollisionAlgorithm::~SpuContactManifoldCollisionAlgorithm()
+{
+	if (m_manifoldPtr)
+			m_dispatcher->releaseManifold(m_manifoldPtr);
+}