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Can Source render caustics, and I mean on the lightmaps it uses, not realtime dynamically.

Look at this: http://media.pc.ign.com/media/566/566186/img_1882889.html
(Vampire: Bloodlines screenshot)

The lights appear to have caustics around them, of course this is baked into the texture and not dynamic, but it looks cool though. I've heard Source can also use indirect illumination to render the lightmaps and bake them onto the textures.
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