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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    1. Tim Sweeney‏ @TimSweeneyEpic 18 Aug 2018
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      Some seemingly hopeless technical problems have an easy solution when you’re willing to take radical steps. I remember @billyzelsnack as the master of this, with perspective-correct texture mapping with a per-pixel divide, and a 256Klookup table for lighting...on a 486!

      10 replies 4 retweets 68 likes
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      Tim Sweeney‏ @TimSweeneyEpic 18 Aug 2018
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      What’s radical nowadays? Allocating one-eight of a 128TB virtual address space to track concurrent garbage collection? Multiple datacenter networking hops per-frame for a game server? 10,000 shader instructions per pixel?

      2:40 PM - 18 Aug 2018
      • 6 Retweets
      • 53 Likes
      • HardknockNightsLive Luke Lafreniere 🌐 Jacob Clarence Stone Matt "summoning arachnogods" Olson Frank L. Morales II Ace Pace Benj Edwards Nopy johntdrake
      8 replies 6 retweets 53 likes
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        2. Chris Birke‏ @Alleycatsphinx 25 Aug 2018
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          Replying to @TimSweeneyEpic

          Using base 32 in a configuration similar to the E8 lattice for analysis and simulation (and rendering I suppose.) Are you still interested in using big numbers for polyhedra, or was that a passing fancy?

          1 reply 0 retweets 1 like
        3. Tim Sweeney‏ @TimSweeneyEpic 25 Aug 2018
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          Replying to @Alleycatsphinx

          The exact-CSG-using-rational-bignums approach is sound. Of course it doesn’t help with the more interesting problem of exact CSG on curved surfaces.

          1 reply 0 retweets 0 likes
        4. 2 more replies
        1. Bart Wronski‏ @BartWronsk 18 Aug 2018
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          Replying to @TimSweeneyEpic

          GOW4 lighting was 2,500 per light, so getting close :)

          0 replies 0 retweets 5 likes
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        1. Jurie Horneman‏ @JurieHorneman 18 Aug 2018
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          Replying to @TimSweeneyEpic

          Neural networks for hash functions?

          0 replies 0 retweets 3 likes
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        1. Frans Bouma‏ @FransBouma 19 Aug 2018
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          Replying to @TimSweeneyEpic

          Perhaps the other way around: still using lookup tables, because it can still be mighty fast. :)

          0 replies 0 retweets 1 like
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        1.  👾‏ @cosmicvisitors 19 Aug 2018
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          Replying to @TimSweeneyEpic

          I think the exorbitant memory requirement tops the list for me. I believe in Go its 50%...

          0 replies 0 retweets 0 likes
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        1. Fabien Ninoles‏ @ninoles 19 Aug 2018
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          Replying to @TimSweeneyEpic

          Accepting data copy instead of sharing? I often feel that many programmers still live in a world of single CPU sockets and low memory machines, where the compiler still doesn't know how to do copy-elision, while still manipulating megabytes assets.

          0 replies 0 retweets 0 likes
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