ArnoldDisplacement "height" ShaderTweak not visible

[Riccardo Cecchinato]

Hello!

It seems like the self parameters of "ArnoldDisplacement" node (Height, Padding, Zero Value) cannot be displayed by the ShaderTweak node. It only displays the parameters of the map plugged into the ArnoldDisplacement node, but not the node's own parameters listed above.

Could you please confirm to me this behaviour?

If that's in fact the case, is there any suggested workaround to override the displacement height on a specific geometry, without doing a displ shader re-assign?

I tried adding to the ShaderTweak the "height" parameter by hand, as a float, but it errors.

Thanks in advance for your help!

Riccardo

[John Haddon]

The height is a bit of an oddity in that it isn't actually a shader parameter - instead it is an attribute assigned directly to the geometry. As such, it can be tweaked using an AttibuteTweaks node rather than a ShaderTweaks node.

Cheers...

John

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[Riccardo Cecchinato]

Thank you John!

I had the intuition last night and you just confirmed it to me, it is true that it's a bit odd - considering displacement is assigned through a ShaderAssign - but it does make sense, being a mesh attribute.

Noted also for the other params/attribs tweakable through the AttributeTweak instead of SHaderTweak.

Have a great day,

Best

Riccardo