Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] General Discussion => Topic started by: dlogan83 on 2013-08-07, 23:36:36

Title: Ambient Occlusion
Post by: dlogan83 on 2013-08-07, 23:36:36

Hi, I seen to posting alot of questions but Corona is just so simple and fast (well so far anyway).

What about ambient Occlusions, does such a thing exist or whats the equivalent?

Title: Re: Ambient Occlusion
Post by: maru on 2013-08-08, 10:54:51

CoronaAO for materials, Corona_Texmap + CoronaAO for render pass.

Title: Re: Ambient Occlusion
Post by: dlogan83 on 2013-08-08, 20:39:43

Thanks, so standard corona tex/corona AO in the diffuse and use this as a material override and post in photoshop?

Title: Re: Ambient Occlusion
Post by: Ludvik Koutny on 2013-08-08, 21:13:51

Quote from: dlogan83 on 2013-08-08, 20:39:43

Thanks, so standard corona tex/corona AO in the diffuse and use this as a material override and post in photoshop?

Nope... Corona texmap is a render element, which can render any texture map as an additional render pass...  so if you put corona AO map into it, then you will make AO pass out if :) If you put falloff map set to distance from camera to it... then you can have depth pass out of it...  and so on :)

Title: Re: Ambient Occlusion
Post by: crowinhand on 2013-08-28, 10:41:04

Hi, everyone

Is there any chance to make an exclusion button for AO?
Because sometimes you need to make patina effect on a wood material, and AO works really great but it puts darker areas in places where an object is close to another object... if you understand what I mean.

Title: Re: Ambient Occlusion
Post by: maru on 2013-08-28, 11:59:13

You mean something like vray's "consider same object only"?

Title: Re: Ambient Occlusion
Post by: Ludvik Koutny on 2013-08-28, 13:23:27

Quote from: maru on 2013-08-28, 11:59:13

You mean something like vray's "consider same object only"?

No, it is just exclude/include list that are taken into consideration when generating AO map. I would welcome that option as i use it in Vray from time to time, when i make some procedural materials using AO, but want to exclude certain objects from contribution.