Shader blending based on attributes

[petermandk]

Is this possible somehow please?

I saw here in issues that displaycolor var is not available, but is there work around at least till we can use displayColor? I would like to use @curvature as weight in RPR Blend Shaders node but if I use curvature in primvar reader nothing happens. Here is my file, so you can see what I am trying to achieve.

https://drive.google.com/file/d/1CoGBEo54MpTZLfY5hS_SOjqZ-jFu_VJf/view?usp=sharing