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AAA – Analytical Anti-Aliasing

(blog.frost.kiwi)
513 points todsacerdoti | 3 comments | 20 Nov 24 08:03 UTC | HN request time: 0s | source
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FrostKiwi ◴[20 Nov 24 11:20 UTC] No.42192825[source]▶
Thanks for sharing! Author here, happy to answer any questions.
replies(14): >>42193691 #>>42193836 #>>42193884 #>>42194114 #>>42195074 #>>42195398 #>>42196248 #>>42196427 #>>42196783 #>>42197142 #>>42197506 #>>42198224 #>>42198810 #>>42202062 #
ferbivore ◴[20 Nov 24 13:45 UTC] No.42193884[source]▶
> Mobile chips support exactly MSAAx4 [...] the driver will force 4x anyways

On what GPUs and through what APIs did you see this? This seems fairly weird. I especially wouldn't expect Apple to have problems.

replies(2): >>42197952 #>>42200340 #
1. mastax ◴[20 Nov 24 20:48 UTC] No.42197952[source]▶
I’m definitely seeing similar artifacts when at 2x on an iPhone 15 Pro.
replies(1): >>42198937 #
2. ferbivore ◴[20 Nov 24 22:48 UTC] No.42198937[source]▶
Through Metal or in a web browser? Apple's docs say it's supposed to use the standard 0.75/0.25 sample positions with 2x MSAA: https://developer.apple.com/documentation/metal/mtldevice/28...
replies(1): >>42199998 #
3. mastax ◴[21 Nov 24 01:13 UTC] No.42199998[source]▶
Viewing the article in Safari.