I'm still searching for a decent 'mask' to make the image on panels and PC CRT's look more arcade-like so decided to look closer at the images from a monitor running an arcade board. I took photo's of Mr Do's Wild Ride on both my Philips CM8833 monitor (not a true arcade monitor, I know, because I don't have one) and a panel. See images. I then experimented to get close to the CM8833.
Standing a little back, it is clear that the arcade-look is due to the darker horizontal lines and it is this feature I'm trying to replicate.
I tried file 'vertical1' first which SHOULD be close and looks quite good but is more grid-like in appearance. I then tried a second file 'vertical3' which is now my preferred choice and looks good on both panels and CRT's (in both vertical and horizontal games).
Neither are *perfect* but give a more reasonable feel (in my view) to that of an actual arcade monitor. Feel free to experiment further (as I will do). The .png files need to go into artwork file of your MAME directory. Then select it using the Advanced tab of MAME UI.
God, I miss those dark, musty arcades ....
Edited by JonBoyRetro (12/18/17 10:53 PM)