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pencil2d / pencil

Pencil2D is an easy, intuitive tool to make 2D hand-drawn animations. Pencil2D is open source and cross-platform.
http://pencil2d.org
GNU General Public License v2.0
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Loading animation with several frames causes drawn brush strokes to show broken lines #964

Closed Kaikogf closed 4 years ago

Kaikogf commented 6 years ago

Here loading a simple animation with around 110 frames, and then when using the painting brushes all of them shows as a broken strokes UNLESS I draw them like in a slow-motion, which makes no sense ;)

Is is easier to follow this issue so any doubt just let me know

Last compilation Pencil2D 14May2018, Win 8.1

Jose-Moreno commented 4 years ago

@Kaikogf Hi. Could you confirm if this problem keeps happening in Pecil2D 0.6.5 for you? If you still have the same 110 frame file, can you share it as well in case this problem continues in your Windows 10 installation?

Sometimes when I open a new blank file just after Pencil2D was started I can have broken lines while drawing, but after a while they become smoother, so it could be an issue related to how resources are allocated.

What I think is that since Pencil2D is allocating memory for the each frame drawing (this also happens on import), the memory (and CPU) will be saturated, but if you wait a bit, the OS will start to manage the resources and lower the memory footprint enough for the stroke computation not to give you a broken line.

That said between the previously reported version from 2018 and the newest ones, I believe there was an improvement where Pencil2D is supposedly only going to load a few images (when opening a file) and not all of them.

I'm not sure if the frame caching has to do with this as well, I'll honestly have to ask, but if you can please adjust the frame cachin in Edit > Preferences > General > Scroll down to the "Advanced" section > And lower the number from 200 to something like 50 and try with the same file to see if this helps or not.

Jose-Moreno commented 4 years ago

Kaiko also commented on a similar issue

I have a different experience while playing an animation with more than 200 frames

To be exact I played an animation with 10 layers and 370 frames (some of the layers had only two frames with drawings, some were used for the background in which one frame was put at the beginning and the other one at the end of the animation, other layers has more frames with plenty of drawings, etc....). The problem in my case is when the animation is playing through frames that belong to several layers, changing its speed and lagging the whole animation.

The curious thing I noticed was that Pencil2D' speed was not constant while playing the whole animation. When the animation passes across frames that belong to several layers, pencil2D's will slow down speed. On the other hand, Pencil2D will playback at its normal speed (fps) when the animation is passing through frames that belong to one particular layer only....

Another curious thing: even when adding several more frames to that particular layer, and knowing that the animation has already around 370 frames on the timeline, playing the animation from that moment on will not affect its speed.

Hope this make some sense to you since I was not fully focused of all situations around this behaviour

Kaikogf commented 4 years ago

@Jose-Moreno The issue has now no impact with the new release version v.6.5. So I consider it fixed.

[note: not sure if it had something to do with my previous version of win8.1]