Pixellation / Artifacting in recent timelapse renders - Printable Version +- LRTimelapse Forum (https://forum.lrtimelapse.com) +-- Forum: Archive (https://forum.lrtimelapse.com/Forum-archive) +--- Forum: LRT5 - General Questions (https://forum.lrtimelapse.com/Forum-lrt5-general-questions) +--- Thread: Pixellation / Artifacting in recent timelapse renders (/Thread-pixellation-artifacting-in-recent-timelapse-renders) |
Pixellation / Artifacting in recent timelapse renders - seanhaselden - 2019-09-01 Hi All- I’ve been using LRTimelapse 5.2.2 with a Private license for quite some time now. I’ve rendered many videos, but I’ve run into an issue on a couple recent time lapses which has me a bit stumped. I’ve recently rendered a couple timelapses that include a lot of cloud movement and there are a few moments of noticeable pixelation/artifacts in the video. I’ve rendered plenty in the past without this problem. The odd thing is no matter how many times I try re-rendering, it’s always in the same place. I’ve searched the forums and found the closest post to my issue here: https://forum.lrtimelapse.com/Thread-weird-artifacts-and-glitches-in-all-my-tls-since-upgrading-to-lr5 I’ve been on LRtimelapse 5 for some time, but I’ve only seen this issue recently. I can’t recall exactly when I upgraded to 5.2.2, but I certainly never saw the issue before now, so there may be some relation with the upgrade I’ve uploaded a couple clips to youtube to share what I’m referring to. 4 seconds in to this clip you’ll see the pixelation in the clouds on the left hand side. https://www.youtube.com/watch?v=yMNSXVvR00A&feature=youtu.be The second clip in the above link starts at 8 seconds and you can see a fair amount of pixelation in the clouds on the right hand side. I’ve gone through a bit of troubleshooting, trial and error, and different render options. I noticed that I did not see any pixelation in the “render preview”, nor do I see it if I render it at 1080p, or even 3k If I render at either of the 4K options, I see this behavior. Here is a 1080p rendered version of the first clip from above, and there is no pixelation at all: https://www.youtube.com/watch?v=0ioWxFNk-yA System Specs: 2019 27inch Imac Retina 5k 3.7GHz Intel Core i5 24 GB Memory Radeon Pro 580x 8GB My workflow Source images: 6000x4000px RAW taken from a Sony a6000 Exported from lightroom using the LRT JPG 4k option in Lightroom Rendered in LR Time-lapse with: 4K UHD 24 fps Quality: High (i’ve also tried ultra high) Color Sampling: 420 Gamut: Standard (BT 709) LRT Motion Blur 3 (i’ve also tried it without) Sharpen: On I’d like to be able to export this in 4K, so If anyone has any ideas to try, or possible explanations for the behavior I’m seeing, I’d really appreciate it. Pixellation / Artifacting in recent timelapse renders - Gunther - 2019-09-01 As explained in the faq, If you render 4k in 3:2 aspect ratio, you exceed the MP4 specification, which may cause problems. LRTimelapse also gives you a warning about that. Either check - force 16:9 when rendering or use a better codec, like prores, which doesn't have such limitations. |