What is the correlation between degrees of Anisotropic Rotation and the input color?

V-Ray V-Ray Common Render Theory
1

Hi Guys

I have a question about placing maps into the Anisotropic slots of a V-Ray Material.

I put a Vray color into the Anisotropic rotation to see how greyscale values correlate to a rotational value.

I didn’t understand the results I was seeing - Is it possible to Chaos to explain what Grey scale value correlates to the degree of rotation?

Or maybe there can be an update the V-Ray Material for remapping to something more artist friendly. Like black = 0 Degrees and white = 360 degrees

2

gradient white to black shows direction.

3

From the VRay documentation (https://docs.chaosgroup.com/display/…al+%7C+VRayMtl)

Rotation - Determines the orientation of the anisotropic effect in a float value between 0 and 1 (where 0 is 0 degrees and 1 is 360 degrees).

4

Thanks guys - sorry I should have read the documentation

5

It should always be the first adress to look at when not understanding stuff with VRay. But we’re all guilty of forgetting this once in a while :wink: