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dav1d
Joined: 12 Sep 2011 Posts: 40
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Posted: Mon Jul 23, 2012 10:55 am Post subject: GL_TEXTURE_MAX_ANISOTROPY_EXT |
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I can't seem to find `GL_TEXTURE_MAX_ANISOTROPY_EXT`. I did a fast grep through the sources and nothing was found.
Is the old `glext` file missing or where can I find `GL_TEXTURE_MAX_ANISOTROPY_EXT`? (Derelict 3)
- dav1d |
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aldacron
Joined: 05 May 2004 Posts: 1322 Location: Seoul, South Korea
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ponce
Joined: 12 Nov 2009 Posts: 55
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Posted: Thu Aug 02, 2012 1:31 am Post subject: |
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Another useful extension would be GL_EXT_framebuffer_object.
While it's been superseded by GL_ARB_framebuffer_object, this was recent and they are still cards that only support GL_EXT_framebuffer_object. _________________ @p0unce | gamesfrommars |
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aldacron
Joined: 05 May 2004 Posts: 1322 Location: Seoul, South Korea
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Posted: Thu Aug 02, 2012 6:30 am Post subject: |
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Do we only want EXT extensions when working with classic GL, or with modern GL as well? I assume the former. _________________ The One With D | The One With Aldacron | D Bits |
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ponce
Joined: 12 Nov 2009 Posts: 55
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Posted: Mon Aug 06, 2012 2:03 pm Post subject: |
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I'd say both.
Well, you want some extensions when trying to lower hardware requirements (you simply can't require OpenGL 3.0+ for a PC game, much less 4.0+). I would say using OpenGl without extensions is not really feasible in the real world.
Some cards have discontinued drivers that may offer a capability only through a non-ARB extension.
Some extensions are so useful they don't get removed by an ARB equivalent (eg: GL_SGIS_generate_mipmap let's you make mipmaps with OpenGL 1.3).
Also sometimes the vendor version, EXT and ARB version can be slightly different (GL_EXT_framebuffer_object and GL_ARB_framebuffer_object).
That said, most extensions are useless and only some should be available. _________________ @p0unce | gamesfrommars |
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dav1d
Joined: 12 Sep 2011 Posts: 40
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Posted: Thu Aug 09, 2012 3:10 pm Post subject: |
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You always need them (imo), e.g. anisotropic filtering is really great, but it won't merge into "main" opengl anytime soon (licensing issues). |
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aldacron
Joined: 05 May 2004 Posts: 1322 Location: Seoul, South Korea
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aldacron
Joined: 05 May 2004 Posts: 1322 Location: Seoul, South Korea
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Posted: Wed Aug 15, 2012 1:19 am Post subject: |
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Finally got around to this. Support for both extensions is in. They will be loaded when you call reload. Untested, though. _________________ The One With D | The One With Aldacron | D Bits |
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ponce
Joined: 12 Nov 2009 Posts: 55
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