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Thread: Dirty Rectangles

  1. Feb 15th, 2003, 06:00 AM #1
    jsbach
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    Dirty Rectangles

    Hi all,
    Can anyone explain the concept of "Dirty Rectangles" and how it can be used to speed up graphics,
    Where can I find more about it?
    Thanks and have a nice weekend.
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  2. Feb 15th, 2003, 07:42 AM #2
    Electroman
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    The concept of dirty rectangles is that when you update the screen you only change what has changed since the last frame was displayed. Therefore it should be faster because your not painting as much. Remember don't clear the back buffer tho.
    Just do a search on google to find out more.
    When your thread has been resolved please edit the original post in the thread ()
    and amend "-[RESOLVED]-" to the end of the title and change the icon to , Thank you.

    When posting Code use the [VBCode]Code Here[/VBCode] tags to be able to use the code highlighting.
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  3. Feb 15th, 2003, 08:44 AM #3
    jsbach
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    Thanks, Electroman. And now all is left is to figure out how I can
    implement this technique using bitblt or other APIs.
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