Technology

360cam_20080217.jpg

Quentin Lengelé put together a cool demo for a Flash application that uses the Papervision 3D library to pan around a 360 degree video while it’s playing:

The idea was to apply the BitmapData of that movie on a GeoSphere.

The GeoSphere is made in 3DSMAX with flipped faces and exported in ASE Format.
The ASE Format is readable by Papervision3D.

Then you just need to draw your bitmapData into a texture you apply to the ASE in ActionScript.

I’d be really interested in seeing a DIY version of the 360 degree camera hardware. Has anyone taken something like this on?

360 Degree Video with PaperVision 3D – [via] Link

18 thoughts on “360 degree video in Flash

  1. There is also a trick for ‘toggling’ comments, a single character can comment out one piece of code, and uncomment another:

    /*
    inside_comment();
    /*/
    outside_comment();
    //*/

    //*
    outside_comment();
    /*/
    inside_comment();
    //*/

  2. If you’re in C or C++, use the preprocessor instead, like this

    #if 0
    if ( foo == bar )
    {
    dosomething();
    return();
    }
    #endif

    Changing the 0 to a 1 uncomments. Bonus, you don’t have to worry if there is an existing /**/ comment block in the code you’re commenting out. Double bonus, you can nest #if statements.

  3. ifdef’s are way better for removing code because they always work, even if you are removing code that has comments in it

  4. I used to do almost exactly the same thing, depending on syntax highlighting to reveal the comments.

    I do occasionally but almost every other time I use #ifdefs. Much long but MUCH more formal and it allows me to see the code that’s being hidden in the syntax highlighting – or conversely, if someone’s reviewing my code and doesn’t have syntax highlighting, the fact that those lines of code are not being compiled is far more obvious with the #ifdefs.

  5. You know, quickly toggling CSS comments (with their damn C-style comments only) has always driven me crazy. This is a great idea.

  6. It may be neat for a while, but when you return to your code in 6 months, you’ll find that the code is now less readable.

  7. You could also use the blockcomment plugin for vim. Admittedly, it’s a little more than a single character (select block + x and same to uncomment)

  8. If you need to put documentation, liscence, or other rather uniform (i.e. you want to script their insertion) headers on something written in scheme and C you can do something like:

    ;;/*
    ;; Commentary here
    ;;*/

    and have only one script. Depending on compiler settings the C compiler might whine about empty statements, but there’s really no way arround that one. This way you only need one headerify script.

  9. I’ve used

    /*/
    Old Version
    /*/
    New version
    /**/

    in the past, which can be toggle between the two blocks with an extra * in the top line.

  10. I use this frequently:
    #if 1
    // New code here
    dosomethingelse();
    #else
    // old code here
    dosomething();
    #endif

    Changing the 1 to a 0 allows you to quickly switch between the old and new code. If you’re making multiple changes, just do:
    #define NEW_CODE 1
    #if NEW_CODE
    #else
    #endif
    This allows flipping multiple blocks between old and new with a single change.

  11. I wanted to post about the comment toggling but Twan and Robin both beat me to it! It’s funny to see how many people have discovered and use that little trick.

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