Here is a realistic Arcade bezel for the game Lady Bug for use on Mame.
You can download it here - https://bit.ly/2kr9kBv
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So, to use your wonderful bezels, all one has to do is copyng the whole content of the zip file in the appropriate folder for the corresponding game??
If you’re using mame just drop the zip file into the artwork folder in mame and the cfg file in the cfg folder for mame and you’re all set. You’ll have to adjust the tab slider settings yourself though as mame doesn’t save those settings.
Actually, I’m using Retroarch exclusively, so I’m using a name core, not regular Mame.
In that case you need the png image files within each zip. Put the ones you want in any Retroarch folder you create. Now make sure each png you use has it’s own cfg file. Then add the overlay you want from within Retroarch
So let’s say you name a png file, ArcadeBezel
The contents within the cfg would look like this…
overlays = 1
overlay0_overlay = ArcadeBezel.png
overlay0_full_screen = true
overlay0_descs = 0
So if I get it correct, the only way is adding an overlay to the core using RetroArch’s menu and the *.png files contained in the zip files?
What if I put the *.zip files in the folder that the MAME core expects? Would they be ignored?
That’s a good question. Try it out.
@Orionsangel i do like this new tilted bezel theme you have going. Whats the technique to actually tilt the screen?
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Here is a realistic Arcade bezel for the game Dig Dug for use on Mame.
You can download it here - https://bit.ly/2klLFCn
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In this video I test Frogger on Retroarch with a much smaller and more tilted screen using the Mame Core
@Thatman84 & @Tarrasque:
The tilted screen is feasible with shaders. E.g. crt-geom has the option to tilt the screen vertical and horizontal.
@Tarrasque:
The current mame core supports artworks. Put the artwork and ini folder in your retroarch system folder (i think they must be renamed to all lower case in unix systems)
retroarch
└── system
└── artwork
└── ini
Unfortunately, if used as mame artwork instead as overlay, the shader is applied after the artwork, so it affects the artwork too. 
That’s what I suspected.
Could a shader be set in order to apply only to a portion of the screen? In this case I probably woudln’t be able to use the tilted screen cool feature, but at least I couls use any of the other great vertical bezels here AND a crt scanline shader over the game screen.
Am I correct?
@Tarrasque
You can use the bezel image as overlay, so you can use every shader you like.
Needless to say, that you have to use the custom aspect ratio settings in the video options and adjust the settings, so that the game fits into the bezel.
And you need to create a *.cfg file with the same name as the bezel.
[EDIT] the *.cfg file is also found in the *.zip.
You find more info about overlays here: https://docs.libretro.com/guides/libretro-overlays/
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Here is a realistic Arcade bezel for the game Kick for use on Mame.
You can download it here - https://bit.ly/2mHk9jw
2 Likes
Here is a realistic Arcade bezel for the game Circus for use on Mame.
You can download it here - https://bit.ly/2mIOv5b
3 Likes
@Orionsangel:
Is there a specific reason to use a *.cfg file with the mame hoffset, hstretch, voffset, vstretch settings instead of adjusting the x, y, width, height settings in the *.lay file?
I mean you could do it without a second *.cfg file 
Currently i try to write a bash script to convert mame *.lay files to mame2003-plus *.art files and rotate/crop/extend the images accordingly.
To convert the offst and stretch values too will require additional calculations, so without those it would be much more easier.
You can see the result in this thread: MAME artworks for MAME 2003-Plus (atm i am using a spreadsheet and make the conversion manually)
Also i try to write a script to convert them to regular RetroArch overlays inclusive the corresponding game overwrite *.cfg for the custom aspect ratio.
Unfortunately i am not so skilled in scripting 
and it takes some time.
(spreadsheet and manual work is done)
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Because the cfg file maintains the size of the screen so it fits in the bezel. When you remove the cfg file from mame the screen reverts back to it’s large size and you’d have to resize the screen again which is a hassle. When it comes to the whole process I taught myself and it became routine. I welcome the help.