Ambient occlusion..

[selos69]

Hi all,

 

I've read bits and pieces on Ambient Occlusion, however, everytime i do it gives me a headache.

 

Could someone please explain in layman's terms the purpose and how and why you would use it in arch vis?

 

Cheers!

[afterglow]

it's basically just a crude approximation of GI.. a shader that gives a GI like effect by adding darkness to corners/creases etc, but is faster that using GI. u don't really need it for arch stuff, but some people like to render an AO pass and add it in photoshop to give some pop.

[selos69]

Simple as that huh! Cheers!

[PAWUK]

Heres a free plug in that will do the basic job

 

http://plugins.angstraum.at/vrayao/

[RyanSpaulding]

NM. Got it.

[Tommy L]

I think you can force 2 sided rendering on vraylightmat. Could you show us a render?

[RyanSpaulding]

I think you can force 2 sided rendering on vraylightmat. Could you show us a render?

 

I wasn't able to find it. I tried forcing the 2 sided every way I could think of.

 

I ended up flipping some normals and it worked fine.

[STRAT]

dunno about max, but for an ao pass in cinema's version of vray i'll use cinema's own native ao option. does exactly the same as vrays, but is actually faster and easier to use.