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    [SOLVED] Picture Player shows random black frames

    Troubleshooting and Bug Reports
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    • dbini
      dbini last edited by Woland

      I've built another animation station that captures stage to JPG, loads them into the media bin, and scrolls through the captures with a Picture Player. I'm running a Pulse Generator at around 2.5Hz to trigger the Add of a Counter to scroll through the last 50 images. BUT - there's always a black frame or 2. The media thumbnails are all showing images, but sometimes one or two of these images will not load, and I get a black frame instead of the image. It's pretty random, with different frames not working each time the loop runs.
      Does anyone have any ideas of how to maximise efficiency and make sure every picture loads correctly.

      (I tried adding a Picture Preload into the system, but it kept crashing Isadora)


      John Collingswood
      taikabox.com
      2019 MBPT 2.6GHZ i7 OSX15.3.2 16GB
      plus an old iMac and assorted Mac Minis for installations

      dbini 1 Reply Last reply Reply Quote 1
      • dbini
        dbini @dbini last edited by dbini

        to illustrate the issue:

        and here's (a slightly earlier version of) the patch. animation-2025-v4.0.9.izz.zip

        John Collingswood
        taikabox.com
        2019 MBPT 2.6GHZ i7 OSX15.3.2 16GB
        plus an old iMac and assorted Mac Minis for installations

        mark_m dbini 2 Replies Last reply Reply Quote 0
        • mark_m
          mark_m @dbini last edited by

          @dbini

          I get exactly the same issue testing on Windows on the big machine in my sig: random black frames. All the individual captured jpegs seem just fine.  I tried in .png to see if it was a decompression issue from JPEGs. Same black frames. Also with BMP and TIFF. 

          I see nothing in the patch so suggest why this would be happening. All I can do is confirm. Someone else will have to look under the bonnet.

          Cheers

          not that Mark

          Intel NUC8i7HVK Hades Canyon VR Gaming NUC, i7-8809G w/ Radeon RX Vega M GH 4GB Graphics, 32GB RAM, 2 x NVMe SSD
          Gigabyte Aero 15 OLED XD. Intel Core i7-11800H, NVidia RTX3070, 32GB RAM 2 x NVMe SSD
          PC Specialist Desktop: i9-14900K, RTX4070Ti, 64GB RAM, Win11Pro
          www.natalieinsideout.com

          1 Reply Last reply Reply Quote 1
          • dbini
            dbini @dbini last edited by

            i noticed in the video i recorded that on the third loop, it jumps back to a jpg that was further up the list, so, for some reason, some of the jpgs in the bin are not being recognised, and therefore not counted as 'official' items in the media bin. I can't tell when in the process this glitch is happening, but it is different every loop. I tried changing the default frame rate and background processes, but those changes had no effect on the glitch. Even running at a slower Pulse (0.5Hz) produces the same glitch.

            John Collingswood
            taikabox.com
            2019 MBPT 2.6GHZ i7 OSX15.3.2 16GB
            plus an old iMac and assorted Mac Minis for installations

            1 Reply Last reply Reply Quote 0
            • J
              jandraka last edited by

              Hi,

              If you add a Video Mixer actor to the Picture Player and change the monitor link to the Video Mixer output, the sequence displays correctly.
              I think the Picture Player output, since there's no continuous GPU output, loses the link.
              Hope this helps.

              animation-2025-v4.0.9.izz.zip

              MBP M2 Max 32 GB. MacOS 13.7.3 Isadora 3.2.6 - 4.0.7

              dbini 1 Reply Last reply Reply Quote 6
              • dbini
                dbini @jandraka last edited by

                @jandraka

                Thankyou! that totally works. I had tried adding different actors in that position, but not a Video Mixer. : )

                John Collingswood
                taikabox.com
                2019 MBPT 2.6GHZ i7 OSX15.3.2 16GB
                plus an old iMac and assorted Mac Minis for installations

                1 Reply Last reply Reply Quote 0
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