How would you do this?

[sonne]

Would it be possible to do this in XSI: http://www.cs.man.ac.uk/~gibsons/images/light.jpg
I mean, it was obviously rendered using some kind of Global Illumination, but the light source is an object (the rgb-colored plane) and in XSI objects can't emit photons, which are needed if you want Global Ill.
If FG was used, then the plane could work as a light source, but then the light would not bounce the way it does here, so what would you do?

I hope my question makes sense

/Peter

[lushgardens]

You can use FG and GI together. Also you can always place an area light on the surface you want to emit photons.

[atyss]

Well, I'm not sure FG alone will enough. FG is good for simulating indirect illumination, but it has no range, and doesn't bounce. So you don't really have to choice of adding a light and using GI in combination with FG. However, I suggest you make tests with FG alone before, maybe it could work

Cheers
Bernard