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MiSTer-devel / Saturn_MiSTer

Sega Saturn for MiSTer
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Lemmings 3D Visual issues on 2D graphics on Menus/load screens. #44

Open DMJC opened 10 months ago

DMJC commented 10 months ago

Getting some sort of depth order or Z-buffer issue in Lemmings 3D on menus between levels. Ingame graphics are fine. Tested on European version. [https://cdn.discordapp.com/attachments/1046941029296779344/1175775392318099506/20231119_230034.jpg?ex=656c752a&is=655a002a&hm=da0ba574e827cbb59b0c747ea603560a2783b3c43028cfb7196471371489c613&]

srg320 commented 8 months ago

How to reproduce this issue?

Zet-sensei commented 8 months ago

I will try to help for documenting that issue.

We can see multiple layers of previous screens (loading screen and main title screen) mixed up with the menus.

The issue is very visible and reproductible during the title screen, with the rotating '3D' logo leaving a red trace everywhere it goes on-screnn and also on the menus (just after pressing the Start button, before entering the main game). When moving between Lemmings characters, we can see the names of them on the end of the screen being mixed up too.

The issue is also reproductible automatically during the demo/attract mode.

Lemmings

srg320 commented 8 months ago

Did you select the correct region in the menu?

Zet-sensei commented 8 months ago

Thanks for the reply.

You must force use the 'Europe' region on the core. Fixed with your indication, could be eventually closed by @DMJC at a later time.

Solution tested with a European BIOS & a multi-region hacked Hi-Saturn BIOS.