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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
05877 Graphics Minor Always Mar 11, 2015, 07:17 Nov 10, 2020, 03:39
Tester Machone View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows Vista/7/8 (64-bit)
Status [?] Acknowledged Driver segaorun.cpp
Version 0.159 Fixed in Version Build Normal
Fixed in Git Commit Github Pull Request #
Summary 05877: outrun and clones: Minor graphics error
Description There's a gap between certain objects and their shadows that is present on the pcb but is missing in MAME. The most obvious examples being the lower left tyre of the Ferrari and the bottom left of the palm trees, as shown in the accompanying pictures.

It's easier to see on videos than static pictures, for example watch
from around the 2 minute mark. The gap between the tyre and its shadow is pretty obvious.
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems outrun and clones
Attached Files
jpg file icon outrun3.jpg (194,742 bytes) Mar 11, 2015, 07:22 Uploaded by Machone
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Senior Tester
Mar 11, 2015, 10:15
yeah, it's been said before that some of the PCB revisions have a half-pixel offset between shadows and sprites, to emulate it we'd have to double the horizontal resolution of the output and work out exactly when it applies.

nice to have a proper reference tho.
User avatar
Jun 28, 2015, 07:12
After checking lots of videos and various references, I've yet to see an Outrun machine without the gap! It also seems that it's at least one pixel wide. Thanks for the info though.
User avatar
Aug 28, 2015, 21:40
Another video reference:

User avatar
Nov 10, 2020, 03:39
All the Out run versions I've seen have the gap present however, some console ports made by sega don't show that gap, so is likely Haze is right...

-Saturn Outrun:

-Dreamcast Outrun: