Main > Lightguns
Settng up light guns in MAME
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lightgungamer:
You could calibrate the aimtrak for 4:3 in Windows but doing it in the games calibration menu doesn’t seem to work.

I got it sorted by stretching the games to full screen and it works fine.
uVSthem:
Hi guys, has anyone figured out a solution to this. I'd really like to play my light gun games in their proper aspect ratio and not stretch them out.
patrickfx1:
I am also in the same situation.  Will try some idea in this forum.  What strange though, and this is usually a good sign we are looking wrongly.  No much people seem to have this behavior.
RandyT:

--- Quote from: BadMouth on July 04, 2020, 08:54:37 pm ---Doesn't calibrating in the games service menu correct for this?
(only moving the gun around the 4:3 window when calibrating)

--- End quote ---

I didn't spend a lot of time trying different titles, but I tried this once and saw an odd calibration.  However, I was able to get it to work properly using "trick" calibration, which for those who don't already know, means not shooting at the centers of the calibration targets, rather offsetting aim during the games calibration setup to compensate for what the gun is actually doing in the game.  After that, there was no problem, but it can take a few tries to get it right if one isn't used to it from, say, messing with wonky touchscreens :)
patrickfx1:

--- Quote from: RandyT on November 30, 2022, 09:33:46 am ---
--- Quote from: BadMouth on July 04, 2020, 08:54:37 pm ---Doesn't calibrating in the games service menu correct for this?
(only moving the gun around the 4:3 window when calibrating)

--- End quote ---

I didn't spend a lot of time trying different titles, but I tried this once and saw an odd calibration.  However, I was able to get it to work properly using "trick" calibration, which for those who don't already know, means not shooting at the centers of the calibration targets, rather offsetting aim during the games calibration setup to compensate for what the gun is actually doing in the game.  After that, there was no problem, but it can take a few tries to get it right if one isn't used to it from, say, messing with wonky touchscreens :)

--- End quote ---

Well, I me too made it work finally, not easilly and to be honest , not exactly sure what has fix it.  Like a lot of time, made many things to fix a issue and not sure what fix what.  But my problem was more about exactly the initial post/question... " This seems to cause the aim to be off because windows sees the edge of the screen at the actual edgs whereas MAME has a smaller window".

In my case, I first change MAME from 1.86 to 2.39b, problem start.  Roms no more compatible.  I fix it.  But the 2.39b have more option for video overall...I also recalibrate.  Oh my god, simple on paper, not in reality.  I was forgetten all the trouble where the middle calibration don't accept it.  Another couple of hours my life loss :). But I made it work by having two IR bar on top of each other to make the job.

In between, many mame options changes..., also try changing my video resolution, IR gain, etc...

Anyway, in short, this hobby is full of fun :). 
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