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Thread: Epic Games Loves Linux, Rolls Out UE4 Linux/SteamOS Support

  1. #21
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    Oct 2013
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    Quote Originally Posted by Damian_Ivanov View Post
    So these $19 per month are what? Per game you develop (way too cheap)? Per user of your game(way too expensive)? Or what?
    per developer and 5% royalties. but, there is special licensing options like if you decide to make free game without any revenue you can apply for 0 cost license.

  2. #22
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    Jun 2013
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    Quote Originally Posted by entropy View Post
    Does UE4 provides native OpenGL support or through a Direct3D wrapper?

    Not sure if I'm mixing things up here but either UE4 or CryEngine (maybe both)
    only provide OpenGL through a wrapper (like Valve for the old Source Engine).
    Quote Originally Posted by blackout23 View Post
    Yes, UE4 uses HLSL->GLSL compiler. However rest of the renderer is nicely abstracted and has multiple implementations. One of them is native OpenGL, which doesn't use any D3D->OpenGL wrappers.

    HLSL is used uniformly for two reasons, first so that developers on every platform deal only with single shading language, second, only single shader generator is needed (big engines don't have fixed shaders, rather they are stitched together by generators from node-based editors).

  3. #23
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    Quote Originally Posted by MiKom View Post
    Yes, UE4 uses HLSL->GLSL compiler. However rest of the renderer is nicely abstracted and has multiple implementations. One of them is native OpenGL, which doesn't use any D3D->OpenGL wrappers.

    HLSL is used uniformly for two reasons, first so that developers on every platform deal only with single shading language, second, only single shader generator is needed (big engines don't have fixed shaders, rather they are stitched together by generators from node-based editors).
    Thanks, that was helpful!

  4. #24
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    So is UE4 on Linux OpenGL 4.4? I'd love to finally play something that takes advantage of everything my GPU has to offer.

  5. #25
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    Quote Originally Posted by blackout23 View Post
    So is UE4 on Linux OpenGL 4.4?
    As I see OpenGL 4 renderer still far from being feature complete. So for now it's only use OpenGL 3.

  6. #26
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    Quote Originally Posted by _SXX_ View Post
    As I see OpenGL 4 renderer still far from being feature complete. So for now it's only use OpenGL 3.
    How come? Epic runs it unreal engine 4 demo on tegra k1 with OpenGL 4.3 renderer. Not sure about OpenGL 4.4, but unreal engine 4 uses nvidia gameworks so it's possibly.

  7. #27
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    Quote Originally Posted by MiKom View Post
    Yes, UE4 uses HLSL->GLSL compiler.
    Uses? I got the impression that it's an optional feature. I don't see a reason why developers would have to use HLSL if they just want to use OpenGL across all platforms.

    Quote Originally Posted by tuke81 View Post
    How come? Epic runs it unreal engine 4 demo on tegra k1 with OpenGL 4.3 renderer. Not sure about OpenGL 4.4, but unreal engine 4 uses nvidia gameworks so it's possibly.
    Probably because this is the initial code drop and it's still not finished?

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