Xavier Zepherious
Not the same thing
DLSS the screen could be half missing and DLSS would fill in the spots because it's rendered it 1000,or 100,000 times before and fill in the spots that are missing
CAS or RIS is edge - or contrast sharpening - ie it alters the color of areas- making things brighter or darker to enhance edges and contrast of pixels
They way they go about it is different but they both seem to be used to super sample..
https://www.youtube.com/watch?v=7MLr1nijHIo&t=851sA Boxer engine and a Wankel engine work differently but do the same thing.
somebody else chime in, I'm not sure if I'm getting this