As long as it is an API that will be supported and make most -if not all- mfgs happy it doesn't matter if it takes a bit more time to reach consumers.
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Former Valve/VOGL Dev: OpenGL Next Could Take 3+ Years
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From this phoronix article:
...it (GL Next) could take a while before GPU silicon ends up supporting all of its features
So it seems all new (and significantly older) video cards are already fit for GL Next, which is both good and bad.Last edited by mark45; 09 October 2014, 02:03 PM.
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Originally posted by kalrish View PostWithout considering NVIDIA hardware limitations or whether Mantle is tied to AMD hardware, since the Nouveau Mesa driver is based on Gallium3D, once the Mantle state tracker was added, it would just work.
Of course it's all conjecture since none of us really know what Mantle is outside of a few bullet points on some marketing slides.
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Originally posted by Meteorhead View PostThat will simply never happen. If that would be acceptable, NV and Intel would already support Mantle. Personally I would not be happy to see OpenGL-Next to be a copy of Mantle. I believe it would be a lot more reasonable if they created an ABI and an API that integrated better with OpenCL. I have abso****inglutely no idea what's the need for OpenGL Compute Shaders, when they have a compute API available that is far superior to something hacked onto a graphics API. The only reason people use GLCS is because it outperforms CL-GL interop. If they'd design an ABI that is more flexible than current interop, and one which outperforms it, (if OpenGL could inherit the SPIR intermediate, if people could link OpenGL shaders with OpenCL kernels) that would make a lot more sense from a Khronos perspective. If single-source shaders could be written with a tool similar to SYCL, graphics and compute merged to C++ in a single-source manner... Khronos has a lot of good technologies. I think it would be wiser if they brought together what they have rather then creating something yet again radically new. Just get rid of the anachronistic stuff, give SVM to graphics (a portable means to implement partially resident textures) and bring it up to a C++ level.
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Hah, I wonder if anyone's taking bets on the timeframe
For my project's development this will (hopefully and most likely) have no impact, as it currently requires OpenGL 1.1. I had the idea of having it require 1.0, but in the end decided it's not worth it as pretty much anything supporting 1.0 supports 1.1 as well.
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Originally posted by godlike_panos View PostOpenGL next is moving full speed ahead after AMD giving Khronos group access to Mantle. Mr Geldreich left Valve around that time and that probably implies that he lost his Khronos membership around that time as well. If that is true then he is probably unaware of what happened after AMD's move. With all that said his 3+ estimate is not based on facts but it's a personal opinion based on a incomplete picture.
OpenGL-next is in heavy development and that is a fact. Everything else concerning Mr Geldreich is an assumption.
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Originally posted by LLStarks View Post3 years is way too long
D3D, Metal, Mantle, etc will have evolved and once again lapped OpenGL in that time
D3D -> Yes / No
Metal -> I just don't know
Mantle -> No, No (perhaps in the future)
Opengl -> Yes / Yes
Any game that wants a new api like performance could try with Opengl 4.5, direct state access should give similar overhead improvements, there's some slides from the gdc that are pretty amazing.
Khronos need to hurry up now that there's more interest on d3d alternatives or we'll end with all the AAA games being dx only again.
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Originally posted by godlike_panos View PostOpenGL next is moving full speed ahead after AMD giving Khronos group access to Mantle. Mr Geldreich left Valve around that time and that probably implies that he lost his Khronos membership around that time as well. If that is true then he is probably unaware of what happened after AMD's move. With all that said his 3+ estimate is not based on facts but it's a personal opinion based on a incomplete picture.
OpenGL-next is in heavy development and that is a fact. Everything else concerning Mr Geldreich is an assumption.
-Rich
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