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Justin Wentz avatar image
Justin Wentz asked ·

Can't plug the alpha output into the StandardSurface opacity?

I'm new to Arnold, so I'm hoping this is something stupid simple. Can't I just use an image's alpha channel to drive the shader opacity? I figured I would simply be able to plug the Alpha output into the opacity channel of the Standard Surface, but I can't. What am I missing here? (My texture does indeed have an alpha channel)

shaderstexturestandard surfaceopacityalpha for geometry
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Stephen Blair avatar image
Stephen Blair answered ·

Alpha is a single value, and Opacity is a color.

Plug the Alpha in the R, G, and B channels of Opacity

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