Post #3432154
2026-06-27 07:27 UTC
https://mastodon.gamedev.place/@aeva/116814363698646279
ok so this is broken on GTX and RTX series nvidia cards, on any OS, so it's probably something with the cards themselves or the stock drivers
what it looks like to me is when I draw the same sprite at the exact same location, what is happening instead is it gets jittered, and thus the dither effect which is supposed to be invisible most of the time is in fact very visible because the pixel positions are not lining up between the two.
Replies (3)
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@aeva@mastodon.gamedev.place 2026-06-27 07:29
honestly I had no idea that drawing the same polygons in the same spot with the same UVs with just one draw call could do that, i figured the fragment positions were like, supposed to be deterministic
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@swiftyshq@critter.cafe 2026-06-27 07:29
@aeva@mastodon.gamedev.place nvidia is always a thorn in the side!
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@pupxel@mastodon.gamedev.place 2026-06-27 08:23
@aeva@mastodon.gamedev.place did you ask if they had DLSS on? cuz nvidia default enabled that and it does jitter your scene