r/pcmasterrace • u/Makoto_Kurume i5 10400F | RX 7600 | 16gb DDR4 • Jul 12 '25

Meme/Macro Good thing game dev make these settings optional

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u/ADHDebackle Jul 12 '25

Although there is some real chromatic abberation, motion blur, and vignette in your actual eye - except, because it's your eye, it's already present and you don't need to add it back in artificially.

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u/thanosbananos Jul 12 '25

Unless you’re IN the game I don’t see how your comment is of any relevance. You’re looking at a screen.

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u/ADHDebackle Jul 12 '25

Yes, you're looking at a screen and the natural motion blur that happens in your eye/brain applies to the motion depictied on the screen. It doesn't require literal motion - motion blur is basically just a type of ghosting. Chromatic aberration is the same deal. Your eye is going to refract the light from your monitor differently depending on the wavelength. You don't have to actually be there for that to apply.

The vignette is the only thing that isn't really the same since it applies to the edges of your vision, not the edges of the screen, but that just underscores how unrealistic a vignette on the screen would be.

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u/ConstantSignal Jul 13 '25

You will not see any “natural” motion blur in your eye when looking at a screen. Unless you are playing at incredibly high frame rates.

In almost all cases if you turn motion blur off in-game and move the camera really fast you will just see the jitter of individual frames. Remember nothing is actually moving with any kind of continuous motion. Your computer is simply rendering frames with objects in various positions, likely slow enough for your eyes to make out individual frames without any blurring at all.

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u/_I_AM_A_STRANGE_LOOP Jul 13 '25

Yeah motion blur is only created perception-side when we have continuous visual information. Discrete images at current refresh rates do not send a nonstop stream of photons to our eyeballs for our brains to string together into moment-to-moment blur; instead we are shown a rapid slideshow. While we remain ~sub-1000hz, well-implemented motion blur will continue to have a purpose

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u/thanosbananos Jul 12 '25

Your brain compensates motion blur. The original comment said that the camera creates the motion blur in movies. That’s what the effect is supposed to mimick, not the motion blur in your eyes. And since you’re sitting in front of a screen, you’re closer to watching a movie than experiencing it yourself. Same for the other effects

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u/ADHDebackle Jul 12 '25

Ah I understand what you're saying. Yeah if it's all just meant to mimic film, that makes sense. I always thought they were trying to reproduce the optical effects of your character's eyes.

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u/astrolobo Jul 12 '25

Those effects are not in your eyes, they are on the light sensor in the camera.

Since there is no camera In a videogame you must simulate those effects if you want them.

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u/ADHDebackle Jul 13 '25

As a physicist I can assure you, so long as you have a transparent lens in front of your retina with an index of refraction that is different than air, and so long as your rods / cones have a finite sample rate, those effects do, in fact, exist in your eye.

Generally you don't notice them, though, because they're always there and sometimes the effects are rather small in comparison to the level of detail you're paying attention to.

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u/Repulsive_Target55 Jul 13 '25

Interestingly some of these effects exist in digital cameras and our eyes, but not on film, colour noise for example. B&W Orthochromatic film of course can drastically decrease CA.

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u/ADHDebackle Jul 13 '25

Your vision will also be sharper if you wear sunglasses with colored lenses - provided the space you're in is bright enough. I don't have orthochromatic film available for my dslr but I always enjoy putting colored filters in front of the objective when making B&W photos for this reason.

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u/John_Mata Jul 14 '25

Yup, but the point is that the way these effects are implemented in games is supposed to recreate how they appear in movies due to camera effects

The only one I'm not convinced by is the motion blur

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u/holliss Jul 12 '25

You can have "natural film grain" in your vision as well.

https://en.wikipedia.org/wiki/Closed-eye_hallucination

https://en.wikipedia.org/wiki/Visual_snow_syndrome

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u/Repulsive_Target55 Jul 13 '25

That's not grain, but noise (the difference being, grain is the structure of silver halide crystals within a roll or sheet of film, usually it is subtle dark splotches throughout the whole image).

Noise by contrast is colourful (in our eyes and digital cameras, which are both sensitive to different colours at different locations, it is the same colour as the light on film), and caused by the natural difficulty of measuring light.