Particle Overlay Bend Mode a la Photoshop

I’ve only lightly hacked a shader or two so I need some hand holding on this…

I want a shader that will multiply the shadows and will inverse of Multiply the highlights.

The end result would be the PhotoShop blend mode “Overlay”. NOT the ShaderLab keyword.

Also I’d like the ability to set the alpha bend from 0-100%

How do I go about this? Thank you very much!

Cheers,

Try the Particles/MultiplyDouble shader? I think that is close to what you want.