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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06022 Graphics Minor Always Aug 30, 2015, 17:01 Apr 28, 2021, 14:05
Tester rcoltrane View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows Vista/7/8 (64-bit)
Status [?] Confirmed Driver atarig1.cpp
Version 0.164 Fixed in Version Build Normal
Fixed in Git Commit Github Pull Request #
Summary 06022: pitfight: Pit-Fighter - Vertical gaps in the background scenes
Description There's some vertical gaps that appears on the background layer during gameplay. It's mostly noticeable during the Grudge Matches where you can see some vertical 'holes' that goes through the boat on the background and you can see the sea through these holes.
Steps To Reproduce Just play the game until the 1st grudge match and you will spot several vertical gaps on the boat right off the bat, where you can spot the sea through these gaps.
Additional Information
Github Commit
Regression Version
Affected Sets / Systems pitfight
Attached Files
png file icon 0000.png (20,390 bytes) Aug 30, 2015, 17:01 Uploaded by rcoltrane
png file icon 0004.png (20,374 bytes) Aug 30, 2015, 17:03 Uploaded by rcoltrane
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Senior Tester
Aug 30, 2015, 17:33
edited on: Aug 30, 2015, 17:36
Confirmed, SDLMAME64 on Linux/x64 0.165

Additionally, there is a flash of garbage in Ty's intro in attract mode. I don't know whether or not this is related, but I'm noting it here anyway.

(I've also updated the report to reflect that this is a minor bug.)
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Senior Tester
Dec 18, 2018, 12:27
edited on: Dec 18, 2018, 12:29
This is how it should look like (recorded from a pcb)
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Dec 18, 2018, 15:22
edited on: Dec 18, 2018, 17:39
Thanks for the video MetalGod. Also, during matches 3 and 4, we can see that the squares on the wall at the back of the bar reamins visible, while in MAME they merge together sometimes. This clearly has relation to the vertical gaps bug reported here. It seems to be imprecise emulation of the hardware's scaling system or something like that.
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Senior Tester
Dec 21, 2018, 04:58
Given we're not doing this perfectly, I'll leave this confirmed.
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May 12, 2020, 14:31
edited on: Feb 10, 2021, 23:54
Here's another PCB video recorded by a guy named "Janet" on Youtube. It's a full gameplay and has much better resolution, so we can clearly see that those vertical gaps in MAME emulation, mostly noticeable in grudge matches, are not present on the real thing. Also during the bar matches (3 and 4) we can notice that the divisions on the upper section of the bar don't merge together. in MAME, they merge together all the time.
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Feb 10, 2021, 23:53
edited on: Feb 10, 2021, 23:55
Yet another PCB video, this time it is a japanese pcb gameplay with even better resolution/gameplay:
Points to observe are the upper squares at the upper secton of the bar (they never 'merge' together as seen in mame) and the ship's "nose" on grudge matches, which never splits up as opposed to mame where it starts splitted.
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Apr 28, 2021, 14:05
edited on: Apr 28, 2021, 14:15
Another real PCB gameplay reference recorded @60fps with decent resolution, to compare vertical gaps in a real PCB vs MAME. Some gaps exist in the real pcb as well but in a much smaller number. And the squares at the top of the screen in mathces 3 and 4 do not merge together while the game is zooming in and out. The gaps between the squares flick and their sizes vary a little, but they only merge in the real pcb when the zoom out is at the maximum. In MAME, they merge all the time in comparison.