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opengateware / openFPGA-Genesis

FPGA implementation of Sega Genesis for Analogue Pocket.
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Strange colour issues with Sonic 2 and 3 #20

Open russ840 opened 1 year ago

russ840 commented 1 year ago

Analogue pocket core

Hi. I have noticed that when playing sonic 2 or 3, after a while graphic issues occurs. It’s seems like the horizontal colours go out of sync and I get red pixels on the edge of sprites and background look rough.

I have not noticed this happening with other games (although I only played streets of rage)

is this known about and is there a fix or is this something for an update?

many thanks

DeerSteak commented 1 year ago

This has happened to me with several other games and I don't think it's ROM-dependent. Usually it happens from the time I start the game, so I quit and restart and it goes away.

russ840 commented 1 year ago

Hmmm. I have to turn the pocket off and back on to clear it up. It’s strange