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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
05877 Graphics Minor Always Mar 11, 2015, 07:17 Aug 28, 2015, 21:40
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
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
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.
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Aug 28, 2015, 21:40
Another video reference: