RetroArch gpsp has now been updated with a brand new video renderer, written by David G.F. from scratch! Literally hundreds of games previously with minor/major visual issues have been fixed! In terms of this thread, that includes -
Golden Sun - intro and black boxes in dungeons fixed
Pokemon Pinball - table selection and in-game slot fixed
Metroid Prime - Mosaic effect has now been implemented so the pixellation enemy effect is now displayed properly (this effect is also used in several other games, like Super Mario Advance 2: SMW, V-Rally 3 and Aria of Sorrow to name a few!)
Top Gear Rally - Scanline sprite limit has been implemented which fixes the 'seeing objects through hills and corners' issue. Again this fixes several other games with the same issue.
Payback - Mode 4 OBJ/Sprites have been implemented properly meaning menus now display correctly (still horrendous performance but that's a core issue). Lots of other Mode4 games now display correctly!
Street Fighter 2 Revival - 'Turbo' menu corruption has been fixed!
Rayman 3 Hoodlum Havoc - the graphics corruption on the water skiing stages have been fixed! This was a Mode 0 affine scanline issue, so again this fix will also address other games!
The saving issue affecting some games (Dragonball Z series, Yggdra Union, Top Gun Combat Zones) has been largely fixed on development builds, attention will now be turned to completing and merging these changes!!!
You can get these changes by using one of the nightly builds of RetroArch and the gpsp core -
https://docs.libretro.com/guides/install-psp/
Golden Sun - intro and black boxes in dungeons fixed
Pokemon Pinball - table selection and in-game slot fixed
Metroid Prime - Mosaic effect has now been implemented so the pixellation enemy effect is now displayed properly (this effect is also used in several other games, like Super Mario Advance 2: SMW, V-Rally 3 and Aria of Sorrow to name a few!)
Top Gear Rally - Scanline sprite limit has been implemented which fixes the 'seeing objects through hills and corners' issue. Again this fixes several other games with the same issue.
Payback - Mode 4 OBJ/Sprites have been implemented properly meaning menus now display correctly (still horrendous performance but that's a core issue). Lots of other Mode4 games now display correctly!
Street Fighter 2 Revival - 'Turbo' menu corruption has been fixed!
Rayman 3 Hoodlum Havoc - the graphics corruption on the water skiing stages have been fixed! This was a Mode 0 affine scanline issue, so again this fix will also address other games!
The saving issue affecting some games (Dragonball Z series, Yggdra Union, Top Gun Combat Zones) has been largely fixed on development builds, attention will now be turned to completing and merging these changes!!!
You can get these changes by using one of the nightly builds of RetroArch and the gpsp core -
https://docs.libretro.com/guides/install-psp/