Intel's Mesa Driver Set To Flip On OpenGL 4.5 For Haswell

[axfelix]

Yup, this is pretty challenging and obscure work, I wouldn't expect Intel not to have paid for it! That said, it's wonderful to see it come through and full credit to Igalia for the implementation.

[starshipeleven]

I'm not feeling hopeful for Ivy Bridge users,

You probably missed that Ivy bridge has received the last patches needed to enable OpenGL 4.0 (the best that their hardware can support).

[Gusar]

You probably missed that Ivy bridge has received the last patches needed to enable OpenGL 4.0 (the best that their hardware can support).

4.0 is not the limit. va64 patches are available, and with those, Ivy will have 4.2. Stencil texturing is also possible I think, which would bring Ivy to 4.3. And while not natively supported by the hardware, it is possible to implement query_buffer_object with some complex workaround (Kayden once explained it somewhere in this forum). Should that happen, Ivy would go all the way to 4.5. No idea if Intel will actually go that far, but 4.2 will definitely happen once the fp64 and va64 patches land.

[LinAGKar]

Funnily enough, the HD3000 iGPU supports OpenGL 3.3 under Linux, while it "only" goes up to 3.1 under Windows. So, not by much, but still. :P

And the 3rd and 4th gen Intel graphics (Intel GMA) have OpenGL 2.1 on Linux, but are limited to older versions on other OSes.

[LinAGKar]

4.0 is not the limit. va64 patches are available, and with those, Ivy will have 4.2. Stencil texturing is also possible I think, which would bring Ivy to 4.3. And while not natively supported by the hardware, it is possible to implement query_buffer_object with some complex workaround (Kayden once explained it somewhere in this forum). Should that happen, Ivy would go all the way to 4.5. No idea if Intel will actually go that far, but 4.2 will definitely happen once the fp64 and va64 patches land.

Now, GL_ARB_shader_precision is apparently also marked as only available on Haswell+.

[Gusar]

Now, GL_ARB_shader_precision is apparently also marked as only available on Haswell+.

True, but once fp64 and va64 land, all requirements for shader_precision will be fulfilled and it'll get marked as available too.

[crymsonpheonix]

Intel has nothing to do with these patches. It's Igalia to thank, see:https://github.com/Igalia/mesa

You do realize that Igalia is a contracting company that Intel is paying to do much of this rather tedious work on older platforms, right?

[caligula]

And the 3rd and 4th gen Intel graphics (Intel GMA) have OpenGL 2.1 on Linux, but are limited to older versions on other OSes.

Indeed funny that Intel iGPUs eventually have the best support on Linux and people still complain about the drivers on Linux.

[RussianNeuroMancer]

Indeed funny that Intel iGPUs eventually have the best support on Linux and people still complain about the drivers on Linux.

Well, all this stuff is still not working and this stuff will never work...

[smitty3268]

Indeed funny that Intel iGPUs eventually have the best support on Linux and people still complain about the drivers on Linux.

I don't know about that. Nobody uses OpenGL on Windows Intel drivers precisely because they're such a joke, but the DX drivers aren't. That's what you'd have to compare against.