vram overload - possible?


    Jun 15 2006 | 11:24 pm
    hello,
    when i try to read still image and display it on gl.videoplane,
    i get white screen or sometimes image gets gradually distorted (like
    with some old school vj fx - its sort of moving despite the fact its
    just a jpeg)
    i`ve tried to do an example patch but everything works fine in small
    scale,
    because my patch is quite big using maybe 50 different textures,
    shaders,
    and all gl stuff makes me think maybe there is something wrong with
    the hardware (ram?)
    is it possible?
    or system?
    i`m on powerbook 12 1.33 768ram (GeForce FX Go5200 64vram) os x.3.9
    latest max/jitter
    thanks for any help,
    wojciech

    • Jun 15 2006 | 11:35 pm
      While it's possible that VRAM is the culprit (if you have a lot of
      textures), you might be hitting the instruction limit for the card's
      programmable pipeline. If you are using a bunch of jit.gl.slab objects,
      you might try consolidating your shader programs.
      Cheers,
      Andrew B.
    • Jun 15 2006 | 11:37 pm
      Also, try using @mode static for still images. Does that change anything?
      Dynamic mode works best for constantly updating video.
      Cheers,
      Andrew B.
    • Jun 16 2006 | 8:37 am
      I've used about 100 512x512 textures with no problems (static images).
      Check that your textures are above the minimum size for your graphics
      card - I think that 16x16 or 32x32 (there's a post on it somewhere in
      the list archives). I just ran into this problem where my textures
      were too small and showed up as either white or random noise.
      Resizing them fixes it.