[itsallgoode9]

this is my first try at using the maya maxwell plugin and am not able to get "Hidden to Global Illum" to work. I want an emitter plane that is visible but I don't want it's light affecting anything. Is there a different way to do this in maya compared to maxwell?

using maxwell v3, latest plugin. maya 2012

[itsallgoode9]

Bump.

[ababak]

I've made a quick test and it works as expected for me, both hidden to secondary rays and hidden to GI. Can you show some samples where it's not working for you?

[ababak]

Ok, while playing with the simple scene a bit more I can confirm there is a problem. After some clicking around it just stops working. Here's a scene that has two emitters (one is a plane with maxwell material, the other one is maya area light), both are visible to camera and hidden to secondary rays (works fine) and hidden to GI (broken).
https://dl.dropboxusercontent.com/u/724 ... est.mb.zip

Maya 2015 SP2, Maxwell plug-in 3.0.13, Maxwell Render 3.0.1.3.

[Fernando Tella]

this is my first try at using the maya maxwell plugin and am not able to get "Hidden to Global Illum" to work. I want an emitter plane that is visible but I don't want it's light affecting anything. Is there a different way to do this in maya compared to maxwell?

using maxwell v3, latest plugin. maya 2012

Well, "hidden to GI" is not supposed to do what you describe.

I think what you want is this: http://www.maxwellrender.com/V3/feature ... leemitters

If an object is hidden to GI it doesn't block, reflect or refract light coming from GI. If applied to an emitter it will still produce light (which will behave normally) but it's geometry won't affect the light solution (it won't cast shadows due to GI or reflect/refract light but it will still produce shadows coming from direct light).

[ababak]

This is strange, maybe I clicked something weird and convinced myself the light emission had stopped, I cannot reproduce this. While reading the docs once again I see that you are right and there is no problem. Sorry for confusion.

[itsallgoode9]

Ah, well that makes sense. I thought in the past I just used global illuminati checkbox to achieve this in studio but I guess I just got confused. Thanks for te heads up!

[dariolanza]

Hi all,

In addition to that, always test the visibility flags with Maxwell itself, not with Fire, as Fire skips most of those flags to speed up calculations.

Cheers

Dario Lanza