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Id like to control multiple bump nodes within slate editor. Ive tried using a Max Bezier float node but it wont connect properly. Im sure Arnold has a Float but Im not sure which one?
Find the User Data section.
Pick the User DataFloat - this is a float node.
Or use OSL, I wrote a small one here:
shader Float( float value = 0, output float Out = 0, ) { Out = value;}
The controllers will only connect to the hidden "additional parameters" and should only be used if you have a direct purpose, such as sending data both ways, or syncing up/down stream or need a script operator or Audio and so on.