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

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  • #16
    Originally posted by Luke_Wolf View Post
    actually it's $19 per developer + 5% of the companies gross revenue on the product. All of the big name engines other than Unity have a percent cut of profits on the product in their licensing scheme.
    Crytek has anounced a $9.90/developer licensing scheme that doesn't include any royalties. There aren't any other details just yet, but the press release is here.

    I guess they'll be releasing details pretty soon.

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    • #17
      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).
      Last edited by entropy; 04-04-2014, 06:33 AM.

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      • #18
        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).
        You're thinking about the CryEngine. UE1 and UE2 used pure OpenGL, and I don't see a reason why UE4 would have it any other way. Though I haven't seen any official information either way.

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        • #19
          Originally posted by GreatEmerald View Post
          You're thinking about the CryEngine. UE1 and UE2 used pure OpenGL, and I don't see a reason why UE4 would have it any other way. Though I haven't seen any official information either way.
          Thanks!

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          • #20
            Originally posted by GreatEmerald View Post
            You're thinking about the CryEngine. UE1 and UE2 used pure OpenGL, and I don't see a reason why UE4 would have it any other way. Though I haven't seen any official information either way.
            Nope.

            https://docs.unrealengine.com/latest...ler/index.html

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            • #21
              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.

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              • #22
                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).
                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).

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                • #23
                  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!

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                  • #24
                    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.

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                    • #25
                      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.

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                      • #26
                        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.

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                        • #27
                          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.

                          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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