Yeah well, I guess anything is better than my Radeon 8500 . And I got some problems with the shadow when I use caustics on a glass with a liquid object in it. By simply using ray trace shadows it turns out fine, but if you want to add photons to make the shadow appear more realistic the shadow turns out fully opaque and not transparent as it did without caustics. I'll post the renders in a bit, as I closed Maya and now have to render the stuff again. EDIT: Here's the stuff.. RayTrace w/o caustics: Standard caustics: Better caustics with more refractions, max depth and photon intensity: And here's some phenomenon i just figured ;D It looks like there're bubbles in the liquid, though I didn't add any. Hope someone knows how to make a nice looking caustics shadow with this. -- Zefi