So I tried out GLSL on a primary PC and it looks awesome, but on my actual MAME machine, it doesn't have the horsepower to run it as the frame rate slows to a crawl...right after I tossed away my 5 year gaming PC I realized that I could have used it

Anyhow, back to HLSL - I"m using MAME 0.171 - just fiddling around with the different Shadow Mask - png files. I think Slot-Mask seems the best...anyone can chip in?
Thanks