Colormath screen operation

[sarmath]

Is it possible that we get screen operation (similar to cycles) in colormath node? Its very useful when mixing imperfection black and white textures.
Thanks

[B.Y.O.B.]

For the time being, you can build it out of basic nodes.
The operation can be found here: https://photoblogstop.com/photoshop/pho ... -explained
result = 1−(1−A)×(1−B)

Node setup, upper left Cycles, bottom Lux:

[sarmath]

Thanks for your help, will try it.