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Valve & Intel Work On Open-Source GPU Drivers

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  • phoronix
    started a topic Valve & Intel Work On Open-Source GPU Drivers

    Valve & Intel Work On Open-Source GPU Drivers

    Phoronix: Valve & Intel Work On Open-Source GPU Drivers

    As the latest Valve Linux news for today, Valve Software actually cares about open-source Linux graphics drivers. Last week they had the Intel OTC Linux graphics team out to Bellevue to jointly work on the OpenGL renderer for the Source Engine and the Intel Mesa driver...

    http://www.phoronix.com/vr.php?view=MTE0MzQ

  • curaga
    replied
    Originally posted by entropy View Post
    Hmm, IMHO the differences aren't that grave.
    If you don't have a direct comparison side-by-side or by swapping tabs,
    I'd say it's difficult to tell which one is S3TC.
    OTOH, it's very easy to tell which is uncompressed and which is not.

    Leave a comment:


  • entropy
    replied
    Originally posted by 9a3eedi View Post
    Very interesting comparison shots, thanks for posting. I guess there really is a significant difference between the two texture compression algorithms
    Hmm, IMHO the differences aren't that grave.
    If you don't have a direct comparison side-by-side or by swapping tabs,
    I'd say it's difficult to tell which one is S3TC.

    Leave a comment:


  • 9a3eedi
    replied
    Very interesting comparison shots, thanks for posting. I guess there really is a significant difference between the two texture compression algorithms

    In that case, I do hope the patent problems get resolved soon

    Originally posted by curaga View Post
    Are we talking recent Valve games or proprietary games in general? Your post above suggests the latter. Valve seems to have a decent track record in not losing their sources, but the record across the industry in general is pretty bad.

    BTW, Mac does support s3tc so they likely just used the compressed textures as-is.
    I was talking about both, first the industry as a whole, and then valve specifically. I realize the industry has a bad track record, but I'm pretty sure the companies would still have the sources to their recently released games.

    Interesting that mac supports s3tc, but that's to be expected since it's commercial/proprietary. I'm just saying that in order to port any game to another platform, you'd still need your sources (mostly code I mean) anyway, unless you're porting by emulating or something, or by using some bytecode based binary

    Leave a comment:


  • AJenbo
    replied
    Originally posted by spiritofreason View Post
    Some of the colors are pretty far off for the S2TC version. Wonder what's going on there.
    Accurat calculation of the color is what the pattent is all about, the S2TC works by just doing a simple color picking.

    Leave a comment:


  • spiritofreason
    replied
    Some of the colors are pretty far off for the S2TC version. Wonder what's going on there.

    Leave a comment:


  • curaga
    replied
    Originally posted by 9a3eedi View Post
    That could be true, but if they don't have the source textures or the code anymore, then porting to any platform at all would be very difficult or impossible anyway, I think.. especially if the code wasn't there anymore.

    I'm pretty sure Valve still has their source textures though, otherwise they wouldn't be making the same games with the same engine (and textures and everything). And they just ported their stuff to the Mac recently, too..
    Are we talking recent Valve games or proprietary games in general? Your post above suggests the latter. Valve seems to have a decent track record in not losing their sources, but the record across the industry in general is pretty bad.

    BTW, Mac does support s3tc so they likely just used the compressed textures as-is.

    Leave a comment:


  • AJenbo
    replied
    Originally posted by 9a3eedi View Post
    To be fair, Bastion is a pretty low-end 2D game, so maybe the difference between S3 and S2tc did't really matter. I think it would matter for other high-end 3D games though.
    I would say to oposit:
    https://github.com/divVerent/s2tc/wi...compressed.png
    https://github.com/divVerent/s2tc/wi...notic/s3tc.png
    https://github.com/divVerent/s2tc/wi...notic/s2tc.png

    Though there is a difference if you get close:
    https://github.com/divVerent/s2tc/wi...ts/oa/s3tc.png
    https://github.com/divVerent/s2tc/wi.../s2tc-good.png

    Leave a comment:


  • 9a3eedi
    replied
    Originally posted by curaga View Post
    See above, it might be impossible if they don't have the source textures any more. Heck, they might not have game sources either.
    That could be true, but if they don't have the source textures or the code anymore, then porting to any platform at all would be very difficult or impossible anyway, I think.. especially if the code wasn't there anymore.

    I'm pretty sure Valve still has their source textures though, otherwise they wouldn't be making the same games with the same engine (and textures and everything). And they just ported their stuff to the Mac recently, too..

    Leave a comment:


  • curaga
    replied
    Originally posted by 9a3eedi View Post
    I might be missing something here, but if one wanted to port something to Linux, they'd most probably have to recompile everything anyway and generally optimize it for the platform (i.e. use X-related libraries, switch to OpenGL if they have to, or whatever).. so why not textures? They might as well recompile textures, it shouldn't be too much of a hassle, right? I haven't ported a game to Linux before so I wouldn't know but that's what I would imagine the process to be like.
    See above, it might be impossible if they don't have the source textures any more. Heck, they might not have game sources either.

    Leave a comment:

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