Mirrored Cocktail Mode

[vokitak]

Hello guys! 8 month have passed since you talked about mirroring screen on mame. Are there any new changes to make it easier, because I am not a programmer and have nothing common with all these commands you are talking about:(
COCKTAIL PICTURE
Thats what I want to do with my arcade barrel on raspberry pi 3 but still no success:(

[phulshof]

@vokitak Sorry, I'm only familiar with doing it using standard MAME. I used to have a 10:16 cocktail setup on my 1900x1200 16:10 monitor; they're perfect for this. :) I even created a few overlays for this purpose, which I compiled into MAME so it would use them by default. I'm not very familiar with RetroArch though. :(

[dankcushions]

@vokitak this is all the information we have.

[vokitak]

I've just completed making my arcade barrel using Raspberry Pie 3b and RetroPie.
That how it looks like:)


Can I make Retropie interface looks rotated 90 degrees so player 1 can see it in front?

[vokitak]

Is it possible to play MAME on Retropie using cocktail mirroring mode? How to do this?

[caver01]

@vokitak The answer is YES, it is possible, but to do it, you will have to scroll up to the top of this thread and read how it was done using custom shaders. There is no easier way. You say you have nothing in common with the commands, but that is how it was done.

Your barrel build project looks great, by the way!

[theissdev]

@vokitak Hrmmm... I've been toying with the idea of a cocktail and trying to figure out the best way to handle aspect ratios (and flipping). This barrel idea gives me an idea - what if you can make the monitor under the glass be pivot-able? Nothing crazy, just from portrait up to landscape left or something? That round base and glass would work great with that. Thanks for the inspiration!

[Clyde]

@theissdev said in Mirrored Cocktail Mode:

This barrel idea gives me an idea - what if you can make the monitor under the glass be pivot-able? Nothing crazy

Why not crazy? Like a servo mechanism tied to the game running?

By the way, great build. o/

[fissionch1ps]

I know this is an old thread. I recently did something just like this thread is talking about. I made a tutorial on another forum (i'm happy to recreate it on here if you guys need) addressing this.

https://www.reddit.com/r/RetroPie/comments/97x016/tutorial_split_screen_cocktail_mode_on_retropie/

Also, in MAME2010 UMK3 can go into a cocktail mode in the options. However, it is slow using that core. I had better results using the above method with the mame2003 core and the MK3 speed hack enabled.

Here's a pic of my setup with the split screen shaders in place.:

[tekn0]

This shader has recently been rewritten by the amazing hunterk at libretro to create this effect at a very low processing cost in mame2003. You might have to tweak the parameters a bit in the retroarch menu or the code. It works great, and scales to fit the screen just like cocktail mode in mame2010.

https://github.com/libretro/glsl-shaders/blob/master/misc/cocktail-cab-portrait.glsl