ParticleSystem with Ellipse


I've got another Question. :slight_smile:

I'm trying to create a small Effect using a ParticleSystem. It works pretty good when i use a Ring as the Geometry, but i want to use an Ellipse.

Right now my Code looks like this:

particleGeom = ParticleFactory.buildParticles("Portal", 800);
      particleGeom.setGeometry(new Ring(new Vector3f(0,0,0),
            new Vector3f(0,0,1),
      particleGeom.setEmissionDirection(new Vector3f(0,0,1));

So how do i create a Geometry for an Ellipse?