New OpenGL Extensions

Posted by Kaya Kupferschmidt • Monday, January 30. 2006 • Category: OpenGL
Silently, without a headline on, five new extensions have been completed and added to the OpenGL Extension Registry:

  • EXT_framebuffer_blit. This extensions allows to copy a region from one framebuffer object into another framebuffer object ("blitting"). It is especially useful with the next extension, which in turn would be useless without this one.

  • EXT_framebuffer_multisample. This extension finally allows to create multisampled frame buffer objects. As a direct usage of the frame buffer objects as textures or backbuffers is not possible, it heavily depends on the previous extension.

  • WGL_3DL_stereo_control. Some stuff for controlling 3d stereographic shutter glasses.

  • EXT_stencil_clear_tag. This seems to be a rather esoteric extension for saving bandwidth on the low end generation of PCIe cards that use main memory as a gaphics card resource.

  • EXT_texture_sRGB. This extension adds a new texture format for representing the non-linear sRGB colour space. Maybe this extension is useful for hardware accelerated image processing - I really don't know much about its usage.

As you can see, the two probably most valuable extensions (at least for high quality realtime 3d graphics) are EXT_framebuffer_blit and EXT_framebuffer_multisample.


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