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Doug Spice avatar image
Doug Spice asked ·

Accessing Arnold nodes with Xpresso

Hi all, new to Arnold and excited about it so far. I come from a small amount of experience in Redshift and slightly more in Octane. Far from an expert in any of them.

Right now I'm trying to use xpresso to drive material properties, and finding that I simply can't do it. The Arnold node editor looks just like xpresso but appears to be a totally separate environment, without access to some of the xpresso nodes I really need (Sample comes to mind).

Is there a way to get them to talk, or otherwise use data to drive Arnold nodes?

c4dtoanodes
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Peter Horvath answered ·

The Arnold shader network editor is indeed xpresso based, yet it's a completely different system, so you can not use native xpresso nodes in it, only the Arnold shader. Check out the User data shaders to access user defined shape parameters. Here's an example.

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