pixels for fractals!

This is a discussion on pixels for fractals! within the Game Programming forums, part of the General Programming Boards category; I read it's extremly slow because it's a lot slower to fetch from the hardware (gfx card) than it is ...

  1. #16
    Woof, woof! zacs7's Avatar
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    I read it's extremly slow because it's a lot slower to fetch from the hardware (gfx card) than it is to send? Or something like that.

  2. #17
    Dr Dipshi++ mike_g's Avatar
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    Reading a pixels value from 2d co-ords requires modulo and divide, which is one reason its slower than writing.

    One common way to speed up pixel writing is to allocate a buffer in RAM, kind of like a temporary screen, do all your drawing to the array and when everything is finished blit the whole thing to the screen (or whatever surface) in one go.

  3. #18
    Registered User rogster001's Avatar
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    Wow, thanks for all the info, plenty of stuff to go at.... including a basic understanding of modern graphics writing haha!
    merry christmas!

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