this post was submitted on 05 Dec 2024
631 points (98.5% liked)

PC Gaming

8775 readers
212 users here now

For PC gaming news and discussion. PCGamingWiki

Rules:

  1. Be Respectful.
  2. No Spam or Porn.
  3. No Advertising.
  4. No Memes.
  5. No Tech Support.
  6. No questions about buying/building computers.
  7. No game suggestions, friend requests, surveys, or begging.
  8. No Let's Plays, streams, highlight reels/montages, random videos or shorts.
  9. No off-topic posts/comments, within reason.
  10. Use the original source, no clickbait titles, no duplicates. (Submissions should be from the original source if possible, unless from paywalled or non-english sources. If the title is clickbait or lacks context you may lightly edit the title.)

founded 2 years ago
MODERATORS
EXiLExJD@lemmy.ca
UncleBadTouch@lemmy.ca
KairuByte@lemmy.dbzer0.com
631
A Valve engineer fixed 3D lighting so hard he had to tell all the graphics card manufacturers their math was wrong, and the reaction was: 'I hate you' (www.pcgamer.com)
submitted 2 weeks ago by alessandro@lemmy.ca to c/pcgaming@lemmy.ca
95 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] finitebanjo@lemmy.world 7 points 2 weeks ago

That's exactly the sort of thing his work improved. He figured out that graphics hardware assumed all lighting intensities were linear when in fact it scaled dramatically as the RGB value increased.

Example: Red value is 128 out of 255 should be 50% of the maximum brightness, that's what the graphics cards and likely the programmers assumed, but the actual output was 22% brightness.

So you would have areas that were extremely bright immediately cut off into areas that were extremely dark.