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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
05987 Graphics Minor Always Jul 14, 2015, 20:56 Jan 3, 2019, 18:16
Tester Zosite View Status Public Platform MAME (Official Binary)
Assigned To Resolution Fixed OS
Status [?] Resolved Driver stv.cpp
Version 0.163 Fixed in Version 0.191 Build
Summary 05987: cottonbm: Ground layer invisible while fighting against 1st boss
Description In BOTH official 32 and 64 bit versions, no matter the OS...

Ground layer becomes invisible immediately after the 1st boss appears on screen. This has been happening after 0.148 which was the last build not showing this issue. It might be related to the major performance loss this particular game has been suffering as of late, as described on bug ID #5188 and code changes detailed there. It is NOT related to bug ID #04431 (already fixed), though it's quite funny to see the only thing not getting invisible there was actually the missing ground layer here!
Steps To Reproduce Be skillful enough as to survive to the point of seeing 1st boss. W00t!!!!
Additional Information
Regression Version 0.148u2
Affected Sets / Systems cottonbm
Attached Files
png file icon cottonbm_boss1_terrain_1.png (62,108 bytes) Jul 14, 2015, 20:56 Uploaded by Zosite
MAME 0.148: This is what you want to see
png file icon cottonbm_boss1_terrain_2.png (60,433 bytes) Jul 14, 2015, 20:57 Uploaded by Zosite
MAME 0.163: This is what you get...
There are no relationship linked to this issue.
User avatar
Jul 16, 2015, 20:29
Confirmed actual regression release (0.148u2)
User avatar
Senior Tester
Jan 3, 2019, 18:16
Fixed in mame 0.191