When I use an image for a background I noticed that when rendering into a movie it flickers. What it does exactly is one frame the image is normal in another the image is slightly blurry. See Attached images.
Update one thing is it seems most of the images that do it have been downloaded from online. Don’t know why that would do it. Though ones not downloaded will do it. If someone would try to see if they can replicate this. Also if someone know what is going on and has a fix or a work around please let me know. I tried to render a image sequence then make that into a video but as long as blender is used to render a video it does it.
I found the setting that causes it. Its the GOP Size in the encoding settings.
Then I’d suspect it’s a problem with the codec. Have you tried rendering to a different one?
Yes it will flicker as long as it is a format that uses the GOP size the only exception is the h.264 file format and then you must click lossless Output. It sounds like it is a FFmpeg problem. That is an external thing. So not sure if at this time it can be fixed.
