question

Simon Maddocks avatar image
Simon Maddocks asked ·

How do I create AOV for light facing surface point?

I want a simple colour coded AOV where all geo facing a light is 1 and all geo not facing the light is 0. Preferably anti-aliased.

shaders
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Masoud Zangi avatar image
Masoud Zangi answered ·

I'm rather new to arnold, still trying to help you.

I've attached an image from my maya work space showing my solution.

1. create a aiFlat shader and assign to your desired objects.

2.create a "surfaceLuminance" node.

3.Connect it's "OutValue" to R,G and B channel off the color of the flat shader.

Do this in a render layer , make a material override and disable AOVs for this layer, render just beaty pass.

Maybe there is a simpler way but I don't know.


lightfacing01.jpg (241.4 KiB)
Share
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Simon Maddocks avatar image
Simon Maddocks answered ·

That works, thanks very much.

Share
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Welcome to the Arnold Answers community.

This is the place for Arnold renderer users everywhere to ask and answer rendering questions, and share knowledge about using Arnold, Arnold plugins, workflows and developing tools with Arnold.

If you are a new user to Arnold Answers, please first check out our FAQ and User Guide for more information.

When posting questions, please be sure to select the appropriate Space for your Arnold plugin and include the plugin version you are using.

Please include images, scene and log files whenever possible as this helps the community answer your questions.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.

If you are looking for Arnold Documentation and Support please visit the Arnold Support site.

To try Arnold please visit the Arnold Trial page.

Bottom No panel present for this section.