[Horsepoo!!!]

I think Apple has plenty of time to bring OpenGL 2.0 to Tiger and it should provide enough incentive for at least gamers to upgrade.

[arekkusu]

The Geforce 6800 should be able to support 2.0. But some of the features (MRT, NPOT, two sided stencil) can't be accelerated on the video cards out today (everything up to and including the Radeon 9800.) So you'll still have GL 1.1 - 1.5 (plus a bunch of extensions) in Tiger, depending which card you have.

Still, adding support for GLSL is good.

[Horsepoo!!!]

Originally posted by arekkusu:
The Geforce 6800 should be able to support 2.0. But some of the features (MRT, NPOT, two sided stencil) can't be accelerated on the video cards out today (everything up to and including the Radeon 9800.) So you'll still have GL 1.1 - 1.5 (plus a bunch of extensions) in Tiger, depending which card you have.

Still, adding support for GLSL is good.

Well, OpenGL 2.0 is backwards compatible with all previous OpenGL versions, right? OpenGL 2.0 just has several new extensions for use in current and future cards.

A full OpenGL 2.0 implementation in Tiger's first release would be a good thing.

[arekkusu]

No, GL revisions don't add extensions. They fold existing extensions into the core, making support required. So, if you currently have OpenGL 1.5 + MRT, NPOT, two sided stencil, GLSL, etc then you've already got everything that OpenGL 2.0 will bring. But, no current card on the Mac has all of that. By the time Tiger ships, maybe.

That said, yes, full support in Tiger for all of the required extensions would be good. 10.3.5 doesn't support MRT or GLSL.

[Horsepoo!!!]

Originally posted by arekkusu:
No, GL revisions don't add extensions. They fold existing extensions into the core, making support required. So, if you currently have OpenGL 1.5 + MRT, NPOT, two sided stencil, GLSL, etc then you've already got everything that OpenGL 2.0 will bring. But, no current card on the Mac has all of that. By the time Tiger ships, maybe.

That said, yes, full support in Tiger for all of the required extensions would be good. 10.3.5 doesn't support MRT or GLSL.

Gotcha...so future cards that want to be cool need to support MRT, NPOT, TSS, GLSL, to claim OpenGL 2.0 support.

[a2daj]

Originally posted by arekkusu:
The Geforce 6800 should be able to support 2.0. But some of the features (MRT, NPOT, two sided stencil) can't be accelerated on the video cards out today (everything up to and including the Radeon 9800.) So you'll still have GL 1.1 - 1.5 (plus a bunch of extensions) in Tiger, depending which card you have.

Still, adding support for GLSL is good.

By NPOT, do you mean non-power-of-two textures? Because those have been supported sine the original Radeon. They form the basis of Quartz Extreme. MRT and two sided stencils are also accelerated with today's hardware.

[arekkusu]

No. NPOT textures are a superset of rectangle textures and won't work on Radeon/GF2MX etc.

[Brad Oliver]

Originally posted by arekkusu:
No. NPOT textures are a superset of rectangle textures and won't work on Radeon/GF2MX etc.

Why is that? The mip-mapping support or something else?

[Weezer]

Originally posted by Brad Oliver:
Why is that? The mip-mapping support or something else?

hey brad not to be a jerk, but could you take a look at this please?

Thanks!

http://forums.macnn.com/showthread.p...hreadid=227733

[arekkusu]

Originally posted by Brad Oliver:
Why is that? The mip-mapping support or something else?

If you read the spec, you see that the full NPOT extension allows rectangle textures for all targets-- 3D and cubemaps in addition to 2D. Additionally the wrapping and mipmap restrictions are lifted.

In the case of a GF2MX, it doesn't even support POT 3D textures, so it can't very well do NPOT 3D textures, can it?