I installed installed mupen64+'s dependencies manually from here
and finally got it working. I copied a Mario Kart ROM, and it runs. But my kart in game looks like a sticker instead of a 3d model as it should be, and it seems to have a square transparent mask around my kart, which filters out forground objects like other players and on-road items, but doesn’t affect background.
This looks like a graphics compromise. Any idea on the cause of and solution to this problem?
GPU driver: LIMA driver. With FBTRUBO, Mario Kart crashes immediately.