How to use wireframe shader for alpha


You can use the wireframe shader to drive the opacity of a standard_surface.

The wireframe shader itself doesn’t support opacity, and neither do the flat, utility, and ambient_occlusion shaders. They are all color shaders (RGB). In Arnold, only shaders that return closures can support opacity.

In the more general case, where the opacity isn’t coming from the same shader, you can use the emission for the color:

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