Announcement

Collapse
No announcement yet.

Flashing to Black When Render HQ

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Flashing to Black When Render HQ

    I am having a bit of a problem. I have a project that is 1280x720p with an approximate 3 minute edit. I consider it pretty simple with 1 layer of HQ video (720p) running throughout and 2 3D PIPs HQ video (720p) overlayed on the first layer. There are also several layers of titles done in Quick Titler. The edit is done and all looks well (of course there is not enough horsepower to play realtime so I am just stepping through).

    When I go to render a finished HQ file, one of the HQ PIPs has several instances where it flashes to black. If I play the PIP HQ file by itself, it plays fine with no bad frames. Only the finished, rendered HQ file has this problem.

    Not sure what to do to solve this. I'm thinking that this one PIP HQ file may be somehow corrupt where it visibly looks OK but has something not kosher that Edius doesn't like when it goes to process the rendering?

    Thanks!
    Sincerely,

    Mike Truly
    ----------------------------------------------------------------
    Truly Media
    970.349.5651
    www.trulymedia.com

    System1: Edius 7.41|Storm Mobile|Dual Xeon 3.1 (20 cores w HT OFF)|128GB RAM|Dual 512 SSDs|7TB RAID5|Dual Quadro5000s|Win7_64

    System2: EdiusNX+Exp|Edius 6.03|Procoder3|XP32|Dual Xeon 3.6|4GB RAM|U320 RAID0 15K

  • #2
    What does it look like when you render the timeline eg to a Canopus *.avi?

    Comment


    • #3
      Zorro,

      That's where the problem occurs, when rendering the timeline to a finished HQ AVI file. When viewing in the timeline itself, it looks fine. But when rendering out the timeline, there are black flashes in the PIP.

      Thanks!
      Sincerely,

      Mike Truly
      ----------------------------------------------------------------
      Truly Media
      970.349.5651
      www.trulymedia.com

      System1: Edius 7.41|Storm Mobile|Dual Xeon 3.1 (20 cores w HT OFF)|128GB RAM|Dual 512 SSDs|7TB RAID5|Dual Quadro5000s|Win7_64

      System2: EdiusNX+Exp|Edius 6.03|Procoder3|XP32|Dual Xeon 3.6|4GB RAM|U320 RAID0 15K

      Comment


      • #4
        Mike, I have this problem with some of the Digital Juice stuff when it is rendered. But it flashes a green screen. Randy, who has an identical system to mine, has the same thing.

        Comment


        • #5
          I can reproduce it using 2d pip(Mike is that what you are using?) and jumpbacks which are QT p sources that have been converted with Procoder to HQ upper. I also think I have seen it before with just HQ captured in 60i from my camera that was used in some older projects then brought into new ones. And I get black as you mentioned. Each file by itself plays fine but when they are used in 2d pip I get first two of the three pips going black then the background flashes black then the third pip goes black leaving the whole screen black and then it is back to all well....all this happens in 8 frames. I think it is a 2dpip thing since the same sources work fine in 3d pip..

          Comment


          • #6
            Thanks for the ideas everyone. I haven't absolutely determined all of the issues involved, but it may turn out to not involve Edius. I am rendering out from the timeline at the moment to see if the problem has been solved.

            One of the problems relates to bad frames written during net-rendering from my animation programs. This has been very rare in the past but I have been using some new hardware and methods in the last few days and this seems to relate. Basically, lots of slave systems were writing frames to a hard disk across the network and really hammering the system in doing so. Out of 5200 frames, about 5 of a background layer were somehow partially corrupt.

            I don't know a lot about disk writing, but you would think that if the hardrive was busy, the slave system would simply wait before writing the frame to make sure it was good.

            Randy, this was with 3D PIP that I got the black flashes.

            OK, it appears that it was corrupt render as the new rendered HQ files from the timeline look good. I'll have to look further into this tommorrow when I'm not so tired.

            Thanks again.
            Sincerely,

            Mike Truly
            ----------------------------------------------------------------
            Truly Media
            970.349.5651
            www.trulymedia.com

            System1: Edius 7.41|Storm Mobile|Dual Xeon 3.1 (20 cores w HT OFF)|128GB RAM|Dual 512 SSDs|7TB RAID5|Dual Quadro5000s|Win7_64

            System2: EdiusNX+Exp|Edius 6.03|Procoder3|XP32|Dual Xeon 3.6|4GB RAM|U320 RAID0 15K

            Comment


            • #7
              That's where the problem occurs, when rendering the timeline to a finished HQ AVI file.
              Sorry, I meant rendering to Canopus DV *.avi instead of HQ. Just to be sure if your problem is codec related or not.

              Comment


              • #8
                or Canopus Lossless
                Anton Strauss
                Antons Video Productions - Sydney

                EDIUS 9 WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

                Comment


                • #9
                  Going black issue

                  Hi there people! I guess I'm experiencing a similar problem, but not exactly the same. It happens with titles and effects too - but the most annoying is the following issue: if i have two (or more) video tracks and i render (Shift+G) the one(s) above, the one below turns black. If I open any of them in the layouter the problem seems to disappear, but when I go back to the timeline its partially black again. I'm pretty sure it's not a codec problem of any sort, because in other circumstances all the codecs seem to work fine. So basically the problem is that in some cases I have to render, because otherwise things are a bit too slow - but if I do part of the clips turn black as if I chose black as a background color to the clip above or something... I hope someone understands what I'm trying to say :) Even better if this someone can help me too! Thanks a lot adn good editing to everybody!
                  BM34
                  Running Edius 6.00 on Windows 7 32bit, with an Asus P5K Motherboard with Intel Core 2 Duo E6550 @ 2.33 GHz x 2, with 4 (3) Gb RAM, VGA card: Asus EAH6570 512MB GDDR5

                  Comment


                  • #10
                    Shift + g does not support alpha render you should use shift + Q
                    Steve


                    Please don't send me Private Messages for support. Contact Grass Valley support

                    Comment


                    • #11
                      Originally posted by GrassValley_SL View Post
                      Shift + g does not support alpha render you should use shift + Q
                      Does Shift+Q render only the selected clip or the whole sequence? Pardon my ignorance...
                      BM34
                      Running Edius 6.00 on Windows 7 32bit, with an Asus P5K Motherboard with Intel Core 2 Duo E6550 @ 2.33 GHz x 2, with 4 (3) Gb RAM, VGA card: Asus EAH6570 512MB GDDR5

                      Comment


                      • #12
                        Originally posted by BM34 View Post
                        Does Shift+Q render only the selected clip or the whole sequence? Pardon my ignorance...
                        Don't bother - i get it now . Ctrl+Alt+Q right?
                        BM34
                        Running Edius 6.00 on Windows 7 32bit, with an Asus P5K Motherboard with Intel Core 2 Duo E6550 @ 2.33 GHz x 2, with 4 (3) Gb RAM, VGA card: Asus EAH6570 512MB GDDR5

                        Comment


                        • #13
                          Set an In and Out point over the area you want to render, and use either Shift Alt Q or Shift Q.
                          Main System: i7 6950X OC to 4.5GHz, ASUS RAMPAGE V EDITION 10, Corsair Dominator Platinum 64GB DDR4 2800, SAMSUNG 950 PRO M.2 512GB , GeForce GTX 1080ti SC Black, Corsair AX1200i PS, Phanteks Luxe Case, 16TB RAID (4)HGST Deskstar NAS 4TB, Corsair H115i CPU Cooler, AJA Kona 4, BMD Intensity Pro 4K, Win 10

                          Comment

                          Working...
                          X