Currently I have a png plugged into the specular roughness but Arnold renders as if I have roughness set to 1. I have "alpha is luminance" checked.
I believe you just answered my question. Thank you very much sir :)
outColorR-> Spec Roughness
Ah, quite right. I needed to upgrade to the latest version. However, I have another question now: How did you connect the "out colour" (whick I believe is RGB) to the spec rough (Grayscale)?
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