Guidance on Scalefx shader- how to find/ add to shaders list in retroarch

[wtstreetglow1]

In this instance I was using the megadrive core.

Is there a way to get scalefx as a selectable option? Does it go by a different name? (I've heard it goes by "slang" but I couldn't find that either in the list.). Lastly, is there a Shader already in the default list that would be considered comparable?

Thank you all for all of the guidance you have given me setting up my new arcade cabinet.

I am using RetroPie 4.8 on pi 4.

[wtstreetglow1]

This has been taken care of.

Download the below as zip:

https://github.com/pinkeen/libretro-common-shaders-glsl

extract to pc.

Move wanted shaders to:

[/opt/retropie/emulators/retroarch/shaders/whateverfolder/whatevershader.extension]