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binhl22629481
Participant
February 13, 2020
Answered

Lumetri Color causes pixelation in video

  • February 13, 2020
  • 6 replies
  • 12585 views

Please advise. When color correcting in premiere pro, I started running into this issue where if I adjust anything in the lumetric color, my footage becomes pixelated. Literally any adjustment outside of basic correction, this issue occurs. I can add a LUT, or edit curves, anything. I tried making adjustments to the clip directly and editing an adjustment layer, both had the same result. At first I thought it was just the preview, but when I export the same issue occurs.

 

Has anyone else run into this issue?

 

 

    This topic has been closed for replies.
    Correct answer Averdahl

    Re-install the 442.19 drivers but do a clean install of the drivers.

     

    1. Launch the installer

    2. Click Next until you come to the Options section

    3. Chose Custom (Advanced) and click next

    4. Check the Perform a clean installation

    5. Click Next and install the drivers

     

    Hopefully that will wipe out all old drivers that cause the problems you have.

    6 replies

    K
    K/Redtree
    Participating Frequently
    April 19, 2021

    I have had this same problem, on a 2019 iMac.

    Any keyframe, effect, lumetri etc I applied was turning the footage pixelated - it looked terrible.

    I tried the solutions on here which didnt work for me.

    However, I found going into the sequence settings, changing the video previews to;

    Preview file format: Quicktime

    Codec: Apple Pro Res

    & turning off the 'composite in linear color' 

    Fixed the issue.

      N
      Natasha Dryden
      Participant
      December 17, 2021

      I did the same and it worked for me too.

        E
        ericm54114199
        Participant
        August 13, 2020

        Ive got an even worse issue whilst using Lumetri Color in After Effects. More so using the curves or basically anything below that line up of control. Im beginning to think this is   yet another 2020 bug and issue. Terrible year. Okay so,.. I havent the slighest idea why it does this, hoping one can help...

        My PC carries the i9-9900k, with a GTX 1080 Ti, 128gb of ram.

        Running 17.1.2  - 2020 After Effects.

        R Neil Haugen
        R Neil Haugen
        Legend
        August 14, 2020

        Which driver are you using for the GPU? That sort of thing is nearly always a driver issue.

         

        Neil

        Everyone's mileage always varies ...
        R Neil Haugen
        R Neil Haugen
        Legend
        June 28, 2020

        As noted in SO many post on so many threads ... the recent Nvidia drivers are problematic across all video apps. Some can go back to 445.x drivers and work, many must go back to the 442.x drivers before they can work.

         

        Neil

        Everyone's mileage always varies ...
          dev_willis
          dev_willis
          Inspiring
          June 29, 2020

          Well it wasn't noted in this thread. I came here to search, saw this thread was about the third from the top, and thought "oh, great; there's already an active discussion about it." I didn't notice the dates on the posts until after I had already posted. And I'm not having any issues with Resolve or anything else. Only PP. Well that and having to expose myself to the negativity of forums in a likely-to-be-unsuccessful attempt to get help.

           

          I rolled my drivers back to 442.19 but CUDA doesn't work at all now. It's selected in the project settings and I've restarted PP and the computer but rendering pegs the CPU and doesn't use the GPU at all. Resolve continues to use the GPU normally. I'm going to try 442.92 and then 445.87 if necessary.

           

           

           

           

          Averdahl
          Community Expert
          AverdahlCommunity ExpertCorrect answer
          Community Expert
          June 29, 2020

          Re-install the 442.19 drivers but do a clean install of the drivers.

           

          1. Launch the installer

          2. Click Next until you come to the Options section

          3. Chose Custom (Advanced) and click next

          4. Check the Perform a clean installation

          5. Click Next and install the drivers

           

          Hopefully that will wipe out all old drivers that cause the problems you have.

            dev_willis
            dev_willis
            Inspiring
            June 28, 2020

             

            I think I'm experiencing the same thing but to a greater extent. In my screen shot, the left side is what it looks like without Lumetri and the right side is what it looks like with it. Any adjustment to Lumetri Color causes the image to be massively garbled. It is happening with 2K footage shot on a Canon 5D mk IV in C-LOG profile using All-I compression in an MOV container. It does not happen with 4K footage shot on a Mavic Air in the same project. Rendering the clips does not help. Restarting the computer does not help. Setting the renderer to "Software Only" works around the problem but is also much slower. 

             

            I can work on the same footage in Resolve without issue.

            PP v 14.3.0
            Nvidia Studio Driver v 451.48
            ASUS GTX 1070 Ti
            Threadripper 1920x

            32GB RAM

              rtc_etn
              rtc_etn
              Participant
              June 29, 2020

              My screen is looking like yours so we must be having the exact same issues. Right at the end of a project, of course.

              Warren Heaton
              Community Expert
              Warren HeatonCommunity Expert
              Community Expert
              February 13, 2020

              It looks like the color correction is revealing the macro-blocking as well as the low color sampling in your source footage.  Do you know what bit-rate that the MP4 clips were shot at?  Most consumer cameras max out at around 21 mbps/second while most professional camera start at 35 mbps/second.  Although, prefessionally, cameras that use MP4 or Long-GOP MPEG2 (even at 35 mbps/second) are only used for quick turnaround with light or no color correction.  For color correction, you want a better video format (high bit-rate, minimal compression, and 422 color sampling or better).

               

              I like to phrase it this way:  Just because a camera shoots it, it doesn't mean it's good for editing.

               

               

               

              -Warren

               

               

                B
                binhl22629481Author
                Participant
                February 14, 2020

                I shoot on the A7iii, 4.2.0 8-bit. 4k 100mbps. I've owned the camera for over a year and this is first project where this issue has happened. 

                R Neil Haugen
                R Neil Haugen
                Legend
                February 13, 2020

                That looks like GPU driver issues. If you go into Project Settngs dialog, and set the Mercury Acceleration option to Software Only, does this go away?

                 

                What is your GPU ... and what driver is it using?

                 

                Neil

                Everyone's mileage always varies ...
                  B
                  binhl22629481Author
                  Participant
                  February 14, 2020

                  Currently using an NVDIA GTX 1070. Driver version 450.12, seems to be the latest version according to my GEFORCE Experience. 

                   

                  I did change the setting to Software only, and that seemed to work, but the rendering times are much much slower.  

                   

                  I shoot on the A7III, and this is has never happened before. 

                  avid_thinker5D55
                  avid_thinker5D55
                  Participant
                  June 28, 2020

                  I'm literally going through the same issue right now. I never had this issue until I updated the latest software. WTF Adobe!

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