You're doing it wrong; Ambient Occlusion for Dummies

Complex UV Layout in Maya

Over the last couple of years UV layout in Maya has changed for the better. In this course we're going to be taking a look at some of those changes as we UV map an entire character

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# 1 07-01-2012 , 08:38 PM

Technical Director
Join Date: Feb 2004

Posts: 2,988

You're doing it wrong; Common A/O Problems

Some very interesting things in this article; may of which I didn't know about. Thought it might help some people out.

https://mentalraytips.blogspot.com/20...-ambience.html

Most importantly: https://www.lysator.liu.se/~zap/pd/ao-explain.jpg

Imagination is more important than knowledge.

Last edited by NextDesign; 07-01-2012 at 09:22 PM.

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# 2 07-01-2012 , 09:49 PM

EduSciVis-er
Join Date: Dec 2005

Location: Toronto

Posts: 3,374

Interesting... I skimmed the article, but checked out the image. I can understand why the first is wrong, (using a multiply blend mode with occ and direct light). But how in PS would you achieve the addition operation?

I just bought Jeremy Birn's lighting book, so hopefully I'll get a good foundation in lighting and rendering soon.

-stwert

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# 3 07-01-2012 , 10:01 PM

Lead Modeler - Framestore
Join Date: Feb 2003

Location: UK

Posts: 6,287

Thanks for this John

I have always complained about the overuse of AO in film and tv. People forget about spec and main key lights all the time.....nice for the peeps here to have a good read

Jay

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# 4 09-02-2012 , 12:03 AM

Lifetime Member
Join Date: Feb 2010

Location: Australia

Posts: 4,255

Ok that has me confused...Im with stwert...in the tuts I have for import intno PS the AO is multiplied John??? is this math mean to be for PS as well??

cheers bullet

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"A Darkness at Sethanon", a book I aspire to model some of the charcters and scenes

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