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Anonymous Fri Feb 6 18:24:52 2015 No.461917 [View]
File: 484 KB, 1920x720, VrayMraySidetoSdie.jpg [View same] [iqdb] [saucenao] [google]

>>461658

Need help. I'm playing around with Mental Ray & Vray in Maya. Problem comes when I have to set up lights, I'm confused with all the units types and such. I'm trying to follow some lessons also reading things around but I'm just becoming more confused, is there some good book or website that explains about real life photometric units, and how to relate them to 3D lights (kinda like a database)? Also, is really important to use actual photometric accurate values or is acceptable to set everything in arbitrary units and adjust exposure by eye?

Pic related, one done in Mray the other in Vray 3.0 maya. Tried to keep it alike but in Vray I can't build IES + Hdri textured lights.

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