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View Full Version : Mental Ray and Lighting in General


SoLiTuDe
04-02-2005, 05:28 AM
Anybody know of any good/explains what does what for what situations... mr lighting tutorials? I've found a few that go through step by step, which is fine, but I kind of have troulbe figuring out a few things that aren't really explained, and am looking for more of an explanation of sorts. The main problem/confusion I have is when it comes to shadow types. I can get a basic interior lit and such, but what kind of shadows should I use to make it more realistic? This also goes for creating a sunlight and having it go through windows in an interior... what kind of light should i use for this? Should I make a mr_area spot? or should i actually use the ies sun? Also: what kind of shadows if I should use a regular spotlight? I guess the question would be, what kind of setup is better for these types of renders for quality... not so much speed (maybe a good value of both) Also I'm curious as to what settings I should use for photon size and final gathering... The tuts i've seen generally have a really small photon size, with lots of photons, then final gather it to smooth everything out. I've also seen, though, using big photon size also, so what's best? Also: In a few of those tuts i've seen (such as evermotion.org) they use omni lights with shadow maps for all of their lighting, and use attenuation, but why for? I hope somebody knows what I'm getting at... thanks!!!

/-\_Solitude_/-\

SoLiTuDe
04-02-2005, 05:29 AM
hmmm... found a few threads in here... so hopefully they'll help...


ok... you can disregard this post i guess.. found the lightgaller scene file thanks to jeff mentioning it in another thread... that'll help tons!

edit (again) ... i'm confused... with final gathering... i see examples in the help files of max that show scenes being lit by only fg. How does this work? I understand for things like self-illumintated objects or skylight require fg, and can work without gi, but how do you get fg only without gi??? (trying to get more of a grip of exactly what goes on in mr)

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04-02-2005, 05:29 AM
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