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Type: Posts; User: m i s s i l e

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  1. Replies
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    Re: The inverse of a quaternion.

    The inverse of a quaternion q.

    Lets assume q is normalized, i.e. |q| = 1.


    Usually, normalized quaternions are associated,
    with rotations in R. Rotations in R are
    orthogonal matrices...
  2. Re: my SSE code is slower than normal. why?

    First off all, you missed the definition of the
    scalar-product (dot product). But I guess it is a
    typo in your post, since we multiply the components
    of the two vectors and then add the result...
  3. Re: my SSE code is slower than normal. why?

    Well, for a 10-fold speed-up people
    would kill. http://www.opengl.org/discussion_boards/ubb/wink.gif

    m i s s i l e
  4. Re: my SSE code is slower than normal. why?

    Greetings!

    The problem in you code is rather trivial
    (if one understands)! You do a lot of really
    UNNECESSARY copy operations. In general,
    parallel addition is faster then sequential ...
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