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Feature Request: Continue Rendering #11
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This is actually a Blender limitation. Blender doesn't have a way to pause a video render. If Blender ever adds a pause render feature, I will try to add that functionality to the script. Having said that, look into this post: While blender doesn't support pausing, you may be able to pause blender from running using operating system specific terminal commands. |
Hi, thank you for your fast answer. :) In your script, you control which frames to render. You spread them into N threads, one per core, and stitch the results together in one file afterwards. This could be extended a bit into some slightly bigger concepts like this:
I think this stuff I'm seeing here is the output of Blender:
This could be easily captured and evaluated. So after each successfully rendered frame, a counter could be incremented in a local SQLite (because they do storing data fast better than I could). What should be measured upfront a bit: How much of the total process time are spent then with the SQLite? What should be evualeted upfront: Comes stitching with FFmpeg with a loss of quality? There are several compromises which could/should be done: Don't store EACH frame in the SQLite. Maybe every 250 frames (made up). This would save DB performance and I think it is not desirable to stitch files each containing just one frame (worst case). Drawback: You might have to re-render up to 249 frames. I would play around here with go as it might be faster accessing SQLite with it. Later, I can imagine a feature where you could re-render parts of the movie afterwards by giving a range of frames. Then you could render the credits again for example if you spot a typo. |
This same process could be used to calculate render progress. If you are collecting the frame information, you can display how many frames have been processed. The one downside to monitoring the render output is that it may cause a drop in performance a little. Thanks for chiming in with your ideas, you have inspired me to think about additional features that would be helpful. :) |
A progress indicator could be indeed usefull, yes. :) |
Hi,
sometimes, I want to start a big render and pause it in between. Maybe for traveling. Or the computer shuts down (out of battery?)
So if a rendering gets stopped (unexpected), it would be awesome to just continue where it was.
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