Tatooine trainer changes based on the time of the day?
Anyway, that grid pattern you see is a dithering effect that Factor 5 apply to the when there is a smooth gradient which could have issues with colour banding. Because factor 5 are using anti-aliasing they are limited to a 15bit colour buffer, which would exacerbate any colour banding effect.
Dolphin doesn't emulate this 15bit colour limitation, so the dithering effect isn't needed as much. It also falls down at higher IRs.
Anyway, that grid pattern you see is a dithering effect that Factor 5 apply to the when there is a smooth gradient which could have issues with colour banding. Because factor 5 are using anti-aliasing they are limited to a 15bit colour buffer, which would exacerbate any colour banding effect.
Dolphin doesn't emulate this 15bit colour limitation, so the dithering effect isn't needed as much. It also falls down at higher IRs.