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Bretislav Kaspar avatar image
Bretislav Kaspar asked ·

Arnold Houdini Ramp for Hair

Arnold Houdini Ramp for Hair color (along strand), it worked in Htoa 2.0.0, as a "V" Pattern, however its not working in Htoa 2.0.1 anymore.. Any Help?

htoahairramp
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Bretislav Kaspar avatar image
Bretislav Kaspar answered ·

Great, it Works! Thanks a bunch, Buddy. For others: In Arnold Hair shader ad "State Float" choose "bv" plug StateFloat to a ramp (texture) input and change "Pattern" on Ramp to Custom.

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Frederic Servant answered ·

From Arnold 5, the UVs on hair are the skin UVs. You can use the barycentric coordinates to get the per stand UVs, in your case that would be "bv" from the state_float shader.

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