public unsafe static void CalculatePrincipalAxisTransform(this ConvexTriangleMeshShape obj, ref OpenTK.Matrix4 principal, out OpenTK.Vector3 inertia, out float volume)
{
fixed(OpenTK.Matrix4 *principalPtr = &principal)
{
fixed(OpenTK.Vector3 *inertiaPtr = &inertia)
{
obj.CalculatePrincipalAxisTransform(ref *(BulletSharp.Math.Matrix *)principalPtr, out *(BulletSharp.Math.Vector3 *)inertiaPtr, out volume);
}
}
}
