Mario Kart Wii Bloom Offset is at 80384b04
AR codes:
No Bloom:
04384b04 00000000
Slight bloom:
04384b04 3e800000
First one disables bloom without any bugs that I've seen yet. By default it is 3f800000 (1). You can set it to a float/decimal between 0 and 1 to correct the bloom a bit, but it's still too sharp. Can also change the value only at 8023505c, which may or may not look better.
Simply disabling scaled efb copies and nothing else makes heat haze look more blurry, but fixes bloom. Not sure there's any other effect from it, so I'd say that's an option as well.
AR codes:
No Bloom:
04384b04 00000000
Slight bloom:
04384b04 3e800000
First one disables bloom without any bugs that I've seen yet. By default it is 3f800000 (1). You can set it to a float/decimal between 0 and 1 to correct the bloom a bit, but it's still too sharp. Can also change the value only at 8023505c, which may or may not look better.
Simply disabling scaled efb copies and nothing else makes heat haze look more blurry, but fixes bloom. Not sure there's any other effect from it, so I'd say that's an option as well.