private CompoundShape LoadCompoundCollisionShape(UrdfCollision[] collisions, string baseDirectory, float mass, Matrix parentTransform) { var compoundShape = new CompoundShape(true, collisions.Length); foreach (UrdfCollision collision in collisions) { Matrix origin = ParsePose(collision.Origin); Matrix childTransform = origin * parentTransform; CollisionShape shape = CreateShapeFromGeometry(collision.Geometry, mass, baseDirectory); compoundShape.AddChildShapeRef(ref childTransform, shape); } return(compoundShape); }