topic Re: Render Setup Problem, shader override not working with transparency maps in Maya Shading, Lighting and Rendering Forum

Render Setup Problem, shader override not working with transparency maps

jhonatan.chambi — Tue, 19 Jun 2018 03:17:10 GMT

Hello everyone, i have a problem with render setup, everything is fine but when i plug a shadowMatte shader in the shader override slot , the transparency map of my plane (bush) it's not working, just render planes.

Everything is ok

Real geometry

i create a shadowMatte

planes without transparency mask

There is a file for download this file

Thank you so much for your help, greetings from Lima - Peru

Re: Render Setup Problem, shader override not working with transparency maps

mspeer — Tue, 19 Jun 2018 07:46:08 GMT

Hi!

You did not specify any transparency for your "new" override shader.

I don't know what you want to do or expect but maybe this is not the best way to achieve it.

Re: Render Setup Problem, shader override not working with transparency maps

jhonatan.chambi — Tue, 19 Jun 2018 08:24:56 GMT

How i do specify transparency in a override shader? i don't know? i'm new in arnold and render setup.

Basically, a shadow pass in a layer my friend, my file is there for downloading (maya 2018), thanks for your answer

Re: Render Setup Problem, shader override not working with transparency maps

mspeer — Tue, 19 Jun 2018 08:48:48 GMT

Hi!

1. If you want to "catch" shadows then only the object that receives that shadows should have this "catch"-material applied. So use it only on "pPlane1".

2. It's recommended to use Arnold materials for all objects when using Arnold as renderer.

3. For passes use AOVs, for example "shadow_matte" for shadow pass. (That's maybe what you try to do, no layers needed for this)

Please read the Maya Online Help / Documentation and Arnold for Maya User Guide for more details.

Re: Render Setup Problem, shader override not working with transparency maps

jhonatan.chambi — Wed, 20 Jun 2018 08:26:35 GMT

I follow the step 1 and 2 and nothing happened still without transparency map, i needed in a collection my friend !!! any idea? for now i try everything by the way thank you so much for your help,

Re: Render Setup Problem, shader override not working with transparency maps

mspeer — Wed, 20 Jun 2018 18:43:49 GMT

Hi!

Sorry i don't understand your response.

If you don't change the material for your trees as suggested in 1. how should they loose transparency,

their render will no change in any way.

...and...

what is with 3.?

Re: Render Setup Problem, shader override not working with transparency maps

Anonymous — Tue, 28 Dec 2021 08:09:36 GMT

@Anonymous Chambi I saw your problem. put the "shaderoverride1" tab directly under the collection and remove "collection1_shaderE" your problem is solved.