I'm trying to render environment maps from my probes and I've read about a technique of using the GS to draw all 6 faces at the same time (?)
I haven't really found any details on how that is done, and if so is it the best way to do that? Or should I just render face after face 6 times ?
Now is there some way to compose this cubemap from my rendertargets or do I have to do that by hand using CubeMapGen from each face ?
And my last question how do I write this rendertarget to my filesystem as a *.DDS file ? Is there an API call or something ?