Diffraction CD in Arnold / Maya

[Anonymous]

Hi.

After a year, when I switched from Mental Ray (RIP) to Arnold, I wanted to repeat the result of diffraction grating on CD. This render was done on the tutorial "Diffraction Grating in Maya"

How can this be implemented in Arnold?

[lurklurkson2000]

Hey, did you have any luck so far? would be interested!

[Anonymous]

Sorry, not yet. While there is no time to continue the experiment. But how will the result, I will publish the process.

[lee_griggs]

What do you get when you render that shader in Arnold?

Have you tried the Facing Ratio shader?

[Anonymous]

There must be a highlight from point light. And depending on the position of the light, the position of the flare changes.

That is, two layers: the first is the base, where the gradient is slightly visible. And the second is a highlight.

No, Facing Ratio did not try. I will need to do a couple of tests. Thank.

[Anonymous]

In Mental ray there was a shader mib illum ward, which gives a separate highlight. How to do it in arnold I do not know. This is certainly not the result that I want. Used Specular Anisotropy.

cd-rainbow.zip

[lee_griggs]

Have you tried a ramp -> specular anisotropy similar to this tutorial?