Particles in the foreground

I have a problem with particles:
http://www.zios.de/first.jpg
http://www.zios.de/second.jpg
http://www.zios.de/third.jpg

As you can see, the particles are always in the foreground, instead of being hidden by the object when appropriate. Is there any way to solve this?

If I remember well the renderer renders in three steps, conventional materials - materials with alpha - halo materials and flares.

This might be why your particles (with halo material) looks always in foregroud.

Try the Unified Renderer, which renders in a single pass…

let me know…

Stefano

Hey! It seems to be working! Thanks. I will post the full animation soon.