Melanin Redness in Standard Hair shader does not work in Arnold 7

[jacobberrier]

Describe the bug A clear and concise description of what the bug is.

Melanin redness attribute in Arnold Standard Hair does not affect hair color.

To Reproduce Steps to reproduce the behavior:

1. Add a hair shader to curves or hair groom.
2. Adjust melanin redness in shader.

Expected behavior A clear and concise description of what you expected to happen.

Expected to function as shown in documentation

Screenshots If applicable, add screenshots to help explain your problem.

Arnold 6

Arnold 7

Used Software Versions

• Arnold: [7.0.0.*]
• HtoA: Present since 6.0.0.0
• USD: [21.08]
• OS: [Windows]
• Any 3rd-party app: [Houdini 19.0.531]

Additional context Add any other context about the problem here.

[sebastienblor]

Hi @jacobberrier would it be possible to send us a repro scene ? I'm not getting the same results than you're showing, but maybe I'm not doing the same steps. Thanks !

[cpichard]

Hi, this was fixed in the core and should be available in the next release. Cyril