Trouble Creating a Per-Light AOV

[rkovach]

I am reading through the documentation on how to create Per-Light AOVs, but I am not able to replicate the results show in the documentation.

After entering a Name into the AOV Light Group field, and creating a new Custom AOV, the Light Group attributes are disabled in the Attribute Editor.

[lee_griggs]

Did you try the scene at the bottom of the AOVs page?

[rkovach]

I opened the provided scene and those options are also disabled.

[Stephen.Blair]

That's because the AOV RGBA_quadrant1 is itself a light group AOV.

By naming an AOV with a light group name, that makes the AOV a light group AOV.

Add the RGBA AOV. Then you can use the Light Groups controls.

[rkovach]

sorry, i'm not sure I follow, that screenshot is from the scene file provided from the documentation. Is it not setup correctly?

[Stephen.Blair]

It's set up correctly. That's one way to do it.

If you want light group AOVs for all four quadrants, you can either create four AOVs:

• RGBA_quadrant1
• RGBA_quadrant2
• RGBA_quadrant3
• RGBA_quadrant4

Or add the RGBA AOV, and then enable All Light Groups

[rkovach]

I'm sorry, I am missing something. I created a new AOV, and gave my light a AOV name (different name from the new AOV), but the option is still disabled?

EDIT: Oh I think i understand now, you are referring to the AOV named RGBA, not a custom AOV with "rgba" as

[Stephen.Blair]

What is this custom AOV? What are you writing to it?

[rkovach]

I am trying to write out the Lighting information to the AOV.
I only created it because the Documentation mentioned "Create a new AOV" first, then link the Light to it.

Per-Light AOVs

2. Create an AOV and select it to show it in the attribute editor (in this case we have used a diffuse AOV).

[Stephen.Blair]

For a custom AOV named test, you can create light group AOVs with names like test_quadrant1, test_quadrant2, and so on. Just create the AOVs with the right names.

[Stephen.Blair · Accepted solution]

For built-in AOVs like RGBA or diffuse, see this video:

https://www.screencast.com/t/y5nRuEFgSRQ7