OpenGL recording problems

    Feb 20 2006 | 4:29 pm
    For some reason, I always encounter problems when I get to the recording phase.
    This time, Im doing a jit.desktop render, and I am having a couple issues.
    The main one, that I cant live with, is the timing of the video, it
    seems I have this issue regularly. I have tried with and without
    Realtime enabled...and I still dont even get close. Without it, my
    video is usually under 2 minutes (the original is almost 6). With
    Realtime on, It records to about 4 minutes.
    This is recording to a 30fps file, with a metro driving the
    jit.desktop object at around 66.66 ms.
    Is this the right setup? Kinda confused, since the .sit file on the
    render options page is busted.

    • Feb 20 2006 | 5:51 pm
      I think you want 33.33fps for a 30fps movie. 1000/30 = ?
      I will look into this jit.qt.record realtime thing and see if I can
      find a problem. But it will take a while, so thanks for the info.
      We'll be in touch.
    • Feb 21 2006 | 5:53 am
      I such a doof, I was dividing by 2000.
      but Ive tried every different variable, even at 33.33, and such...
      Ive tried somewhere around 50 times, just trying to get the right group of
      Basically, Im stuck.
    • Feb 21 2006 | 6:07 am
      For perfect timing for recording, you will need to do a non-realtime
      record. You need to parameterize your patch in such a way that the
      controls can be set on a per frame basis. You can make a live
      performance recording the parameters to a coll or some text file, and
      then read these parameters back stepping one frame at a time for the
      non-realtime recording. See list archives for more discussions of
      such an idea. I believe that Randy has been working on a good example
      of this sort of thing.
    • Feb 21 2006 | 7:48 pm
      Hey Joshua,
      Can you suggest a method or patch that is going to lead me in the
      right direction?
      I get the concept, but I dont know if I have the knowhow to achieve this result.
      Any suggestions? perhaps someone has a copy of Randy's patch?
      Thanks all!
    • Feb 21 2006 | 8:03 pm
      See this thread: " smooth rendering/writing to disk? "
    • Feb 21 2006 | 8:33 pm
      You might want to have a look at the GestureRecord recipe in the "in
      depth" section of the website. I believe it is in Book 2.
      This presents 2 ways of recording parameters frame by frame. I would
      opt for the pattrstorage method, personally.
    • Feb 21 2006 | 10:10 pm
      You guys rock, I'll try those when I get home from work.
      Thanks a million fellows,
    • Feb 22 2006 | 3:36 am
      Please hold...