/3/ - 3DCG

>>806541
Obviously if you just like the aesthetic of it as is then that's fine, but I've done a few experiments and if you're specifically trying to achieve a film grain style look then you pretty much have to use a post processing effect, or potentially some custom addon.
The sampling pattern seems biased towards vertical and horizontal lines, and I think it samples different material effects and light bounces at different rates for performance reasons.
And of course there's the fact that all the pixels are a consistent size.