Hi,
I’m rendering a 12h video of a clock. I already reduced the resolution to 160x160 so it doesn’t take too long. It started very fast like 1000 frames / second. In the meantime it dropped down to ~ 5 frames / second. Since its a 12h long video running at 29,97 fps I still have to render ~ 240000 frames ( 1056713 / 1294690 ). That would be ~ 12 hours to render.
Do you guys have any idea why this is happening and how I can fix this?
You’re probably out of RAM- a twelve hour video is going to take dozens of GB of caching
VRAM or system RAM? My system has 32GB and my 3070 Ti has 8GB VRAM and both was far from fully occupied.
Check your system resources… It will give you an idea what the app is using.
Well, something is changing between 79% and 80%, and it’s on your computer’s end, not Blender. A drastic slowdown almost certainly means you’re no longer using RAM and are instead using hard drive space for caching. Can you post your system usage after the slowdown?
I guess I found the problem. Looks like the playhead has problems going further than “1048574” frames. Thats the point where it starts to slow down. Easy fix is setting the fps to 1. Since a clock moves only once in a second the framerate is not a problem.
Maybe this is a bug. I guess I will report it.
