Ellipse-shaped 3D particle attractor affecting [GPUParticles3D] nodes. Ellipse-shaped 3D particle attractor affecting [GPUParticles3D] nodes. [b]Note:[/b] Particle attractors only affect [GPUParticles3D], not [CPUParticles3D]. The attractor sphere's radius in 3D units. [b]Note:[/b] Stretched ellipses can be obtained by using non-uniform scaling on the [GPUParticlesAttractorSphere3D] node.