Hacker News new | ask | show | jobs
by Vel0cityX 2178 days ago
No idea what "some of the input" means, or why you thought "Low Resolution Input" is disingenuous?

It uses color, depth and subpixel motion vectors of 1-4 previous frames. All things that modern game engines can easily calculate. You didn't even need to read the paper to get this info, it's literally in a picture on the blog post.
1 comments
carrolldunham 2178 days ago
Right - so a single low-res image should not be paired with the high-res one and labelled as input and output, because that implies the algorithm turned the one data into the other, which it did not do.
link
pseudosavant 2178 days ago
This isn't about upsampling low-res bitmaps. It is a technique for upsampling the output of a game engine.

The low-res image is itself output generated from a lot of other input the game engine generates. That same input that is already being generated anyway can also be fed into this to improve the post-processing. Finding ways to productively reuse already existing/generated data is the hallmark of any top (graphically) game.

I read a detailed write-up on the graphics pipeline for GTA:V on Xbox 360. It blew my mind how many different ways they reused every single bit that ever hit the RAM. Which explains how they pulled off those graphics on a system with half as much RAM as an Apple Watch.

link