Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08230 Graphics Minor Always Feb 22, 2022, 21:21 Apr 15, 2024, 05:43
Tester Fungi66 View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Confirmed Driver
Version 0.240 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08230: gunlock, rayforcej, rayforce: Missing transparent shadows in Area 4
Description In Area 4, there are transparent shadows located in the background of the stage that are not present in MAME.
Steps To Reproduce Play Gunlock/Rayforce and reach to Area 4.
Additional Information Full Playthrough of Gunlock/Rayforce on a real Taito F3 board:

Full Playthrough of Gunlock/Rayforce I did on MAME:
Github Commit
Flags Verified with Original
Regression Version
Affected Sets / Systems gunlock, rayforcej, rayforce
Attached Files
jpg file icon MAME.jpg (426,380 bytes) Feb 22, 2022, 21:21 Uploaded by Fungi66
jpg file icon PCB.jpg (342,582 bytes) Feb 22, 2022, 21:21 Uploaded by Fungi66
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User avatar
Feb 23, 2022, 05:33
Taito F3 graphics is not perfect in many games.
User avatar
Apr 15, 2024, 05:43
ok i found.
bit x8xx in section 6400 of line ram controls a palette offset effect,
however, it seems to:
 - only affect playfield 4 (?)
 - respect the bpp of the tile (e.g. 4bpp tile gets +0x10, 6bpp gets +0x40) (??)
 - is masked by the layer beneath it (or only pf 1 maybe?) -- in rayforce, the effect is applied only to pixels where a hidden copy of one of the upper layers is. when there is no next 'real' layer, it affects every pixel (from hw testing) (???)