VEX shader network question.

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Hi All. I checked a shader network of aged metal shader in the material paltte. I wonder what this parameter node called “pattern_Export” does.
It is connected to the plug called “dispAmount”. So I guess this one controls the amount of displacement value. Is this one of the global parameter that mantra uses at rendering? I don't understand why you have to make this connection other than output1. It more makes sense to me if the output1 has this “dispAmount” plug. Thanks in advance.

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dispNetwork.jpg (119.8 KB)

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it exports the displacement texture, in this case some noise pattern to a variable called “pattern” for the later use in surface shader (notice dimport_pattern node in metalSurface)
Tomas Slancik
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Method Studios, NY
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hi, tamte.Thank you very much for your quick reply.
Now I understand what's going on.

poppy
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