There’s some benchmarking software you may have heard of called 3DMark. It’s on Steam. Recently, it updated its benchmarks to include the 3DMark Mesh Shader Feature Test, which requires a GPU that’s compatible with DirectX 12 Ultimate. The test runs twice, once with mesh shaders disabled, then again with them switched on. In 4K, using an RTX 3080 card, we got a framerate of around 50 fps for the first run, then something closer to 500 fps for the second, with no perceivable difference in what was displayed on the screen. How the heck did that happen?
‘Shaders’ is a term that’s been thrown around in video games for a while now, and while it seems straightforward it’s not exactly obvious. Shaders are programs that run on programmable GPUs (that’s most of them) that control the levels of light, dark, and colour in rendered images. They’re a major part of modern games’ lighting effects, and there are whole shader languages for graphics programmers to, well, program graphics in.
Pixel shaders were the ray tracing of their time – players of The Elder Scrolls III: Morrowind in 2002 may remember being asked whether they wanted to activate pixel shaders. They only worked if you had a high-end graphics card, there was a bit of a performance hit, but they made the water look awesome. Just like ray tracing, then. Modern pixel shaders do a lot, from bump mapping to shadows to the motion blur you turn off in every game.
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Denne historien er fra June 2021-utgaven av PC Gamer.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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A New Dawn - The rise, fall and rise again of PC Gaming in Japan
The so-called 'Paso Kon' market (ie katakana's transliteration of 'Pasonaru Computa') in Japan was originally spearheaded in the 1980s by NEC's PC-8800 and, later, its PC-9800.
MARVEL: ULTIMATE ALLIANCE
Enter the multiverse of modness.
SLIDES RULE
Redeeming a hated puzzle mechanic with SLIDER
GODS AND MONSTERS
AGE OF MYTHOLOGY: RETOLD modernises a classic RTS with care
PHANTOM BLADE ZERO
Less Sekiro, more Wo Long: Fallen Dynasty
STARR-MAKING ROLE
Final Fantasy XVI's BEN STARR talks becoming a meme and dating summons
THIEF GOLD
Learning to forgive myself for knocking out every single guard.
HANDHELD GAMING PCs
In lieu of more powerful processors, handhelds are getting weirder
FAR FAR AWAY
STAR WARS OUTLAWS succeeds at the little things, but not much else shines
FINDING IMMORTALITY
Twenty-five years on, PLANESCAPE: TORMENT is still one of the most talked-about RPGs of all time. This is the story of how it was created as a ‘stay-busy’ project by a small team at Black Isle Studios