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Thread: Backward compatibility: why ???

  1. #1
    Junior Member Regular Contributor Julien Cayzac's Avatar
    Join Date
    Aug 2001
    Yokohama, Japan

    Backward compatibility: why ???

    Why should openGL 2.0 be backward compatible with openGL 1.3 ? Vendors can provide both drivers, as 1.3 ones won't be maintained anymore...
    Every OS I know can manage shared libraries versions.


  2. #2
    Advanced Member Frequent Contributor
    Join Date
    Feb 2000

    Re: Backward compatibility: why ???

    Presumably so that ISVs can migrate large codebases to the new API smoothly - just because you've got both 1.3 and 2.0 drivers installed doesn't mean you can load 'em both up and have them share a rendering context.

    Professional graphics systems like CAD tend to be *huge*. Game engines look like toys by comparison. Forcing people to port all-at-once or not at all would severly hamper adoption of the new API.

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