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Temporal anti-aliasing: a blessing or a curse?
TAA is a crucial tool for developers - but it's not without its issues. Digital Foundry reports.
When the PS4 Pro and Xbox One X arrived, Sony and Microsoft didn't just sell gamers on the 4K dream, but also on the image quality benefits from SSAA by rendering at a higher resolution and then downscaling. It's an improvement in many scenarios, has a relatively tiny footprint on GPU resources but definitely softens the image and has no idea of history, meaning that a different treatment per frame could lead to visual discontinuities. The ultimate form of TAA right now is Nvidia's DLAA (effectively DLSS rendering at native resolution) which can actually look significantly better even than standard super-sampling.
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