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Weird Artifacts and Glitches in all my TLs since upgrading to LR5

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#1 liveworkwander
I have now rendered a few timelapses with LR5 and have found an issue where I get some really strange artifacts and digital distortion or glitches in my final render. I’m not sure why this happening. Any help in getting this squared away would be awesome.

Here is a link to one of the videos with artifacts:

https://www.dropbox.com/sh/h8bk4qy6zafby...PodZa?dl=0
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#2 gwegner
Your video is very juddery, the trees move a lot, the pan is very fast that means the mp4 encoder seems to have to little bandwith to accomodate all of those changes.
Try setting the quality higher, to provide more bandwith. You could also use ProRes (with LRT Pro) since this will not create artifacts because it uses a much weaker (nearly lossless) compression.

In any case, next time try to do it better when shooting already: always use an ND filter to blur movements, make panning much slower, etc. This will lead to videos that are much more visual appealing and help the encoder to get everything in the provided bandwidth.
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#3 liveworkwander
Hey Gunther,

Thanks for the response. However, this isn't terribly helpful. I have shot and edited maybe over 100 timelapses using LRT and I have *never* had this issue until upgrading to the most recent version of LRT.

I didn't upload the other TL I did here because the file size was enormous and I'm in some remote areas with dial-up internet but that other file had this same artifacting in it. I do quite a few drivelapses where I set a GoPro to shoot once a second or once every 2 seconds. That is a lot of frenetic, fast movement. I have never once had artifacts like this show up in those kinds of timelapses, timelpases that by your accounting up above happens because of the mp4 encoder has little bandwidth to accommodate all those changes. I'm sorry, Gunther, but that can't be the explanation given how many of these I have done that have even MORE changes/movement than this and have never once had these issues.

To further reassert the severity of this issue, it has also shown up in an astrolapse I did with zero movement of the camera.

I have rendered some of these timelapses at the highest quality and while my astrolapses seem to not have anymore of the artifacting, drivelapses do. Why?

I've been a loyal customer of yours since 2012 (I think?) and have loved and recommended this program to a number of other photographers wanting to get into timelapse photography. I'd love to get some kind of concrete steps I can take to fix this issue that don't involve me spending more money on a "pro" version as I've never had these problems before and I've never had a pro version of this software.


P.S. I'm well aware of using ND filters that allow you to drag the shutter and create smoother timelapses.
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#4 gwegner
It's interesting that you say you are having this in all your timelapses, since others haven't. So there must be something, you are doing differently.
You've sent me a very bad example and that's what lead me to my conclusion.
If course I'm willing to find a solution for you, but I've no crystal ball that why I have to guess based on the information that I get.

Please send me a Screenshot of your render settings to start with. Then send me an intermediary sequence (zip one of the LRT_ folders) via FromSmash or WeTransfer to support(at) lrtimelapse.com.

Other things to try:
Set Standard Gamut in the render Dialog
Set Force 16:9 in the render dialog. Sometimes certain aspect ratios of the original files combined with high resolutions could exceed the bandwidth of the encoder also and lead to strange effects.
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#5 liveworkwander
Thanks you and will do. However, it'll be a week or longer. Internet in the Yukon is pretty slow.
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#6 gwegner
Ok, you can send me a short sequence, just enough so that I can reproduce the problem.
Check out my e-book Time Lapse Shooting and Processing!
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#7 liveworkwander
Hi Gunther

Here is a file where the artifacting happens on the left side of the screen. Admittedly not the prettiest timelapse...

https://www.dropbox.com/sh/84zrioa2qeibv...GDica?dl=0

Included as well are screenshots of my render settings.
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#8 gwegner
Most likely the reason for your artifacts is, that you are rendering mp4 files outside the specifications. Often there is an orange warning on the bottom right, telling you, that those files might have issues playing.
On some videos, with slow movements only, where the encoder does not need too much bandwidth, there might not be any issues at all. But with very fast videos like yours with many changes, you'll quickly exceed the limits that MP4 can handle.

Background is that MP4 by definition only can handle a certain amount of pixels in total. So if you render in 4K UHD, you should not render in a low aspect ratio like 3:2 or 4:3 - if you use 16:9 (via "force 16:9"), you'll have less pixels in total, the warning will go away and your video will play perfectly.
So either you lower the resolution in total (3K for example, then you can render in 3:2 or 4:3, or, you crop the video to 16:9 in 4K UHD.
If the problems persist, try increasing the render quality.

Bottomline: Fast movements plus exceeding the specs of MP4 (orange warning) are likely to cause such artefacts.

All of those limitations are due to the way, MP4 is specified. If you use ProRes (LRTimelapse Pro required) those limitations will not be present.
Check out my e-book Time Lapse Shooting and Processing!
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lrtimelapse.com - advanced Time Lapse Photography made easy!
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