Thanks to Mårten Svanfeldt for the contribution:

- optionally disable collisions between bodies that are linked with constraints
- improved debug rendering with support for compounds, spheres, capsules

src/BulletCollision/CollisionShapes/btMultiSphereShape.h

@@ -46,6 +46,20 @@ public:
 
 	virtual void	batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
 	
+	int	getSphereCount() const
+	{
+		return m_numSpheres;
+	}
+
+	const btVector3&	getSpherePosition(int index) const
+	{
+		return m_localPositions[index];
+	}
+
+	btScalar	getSphereRadius(int index) const
+	{
+		return m_radi[index];
+	}
 
 	virtual int	getShapeType() const { return MULTI_SPHERE_SHAPE_PROXYTYPE; }