Originally posted by MattTheMan
Well I can explain GI and FG and Caustics to you, like what they do-
Gi is the amount of initial photons cast out from the light. These photons are bounced around, adding color, and stored for later use.
Then FG comes in, looks at the photon map, what the above did, and shoots more photons (fg rays) from each gi point. That is then approximatied, and the img is made.
Caustics are done the same way as GI, except that the photons are shot out, and if they dont hit a reflective or refractive object they are ignored. If they do, they are traced to the point where they hit another objcet, stored in a photon map, and then the FG comes out and approximates them.
i doubt these definitions are accurate.
but look at the LA MR user group site for answers,resources, and how-to's on MR.
https://www.lamrug.org/
and u can just wikipedia [ https://en.wikipedia.org/wiki/Wikipedia ]
those rendering terms if u really want to know what they mean and how they work.
but the MR user grp will be more on how they work with MR for maya.
Last edited by vladimirjp; 15-04-2006 at 05:35 PM.