Reshade and Retroarch

Hi, sorry for the noob question but I am just learning to use reshade. I am trying to use reshade 2.0 to do some tweaks on an existing retroarch shader preset for all my cores. I point mediator to retroarch.exe in D3d9 it creates the folder in retroarch and the settings I do in mediator once pushed do apply to the reshade files in retroarch but they do not apply to the cores when I start using them. Is there something I'm missing? I've read many posts about people applying a preset shader in retroarch and then using reshade over that to enhance the visuals. Thank You for you help.

I use ReShade 3.0.5 in "retroarch.exe", and it works perfectly, but I set Retroarch to use OpenGL, not D3D.

I'll use 3.0 maybe its mediator that doesn't work. Thx