Viewport Animation Impossible? #68212

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William Phillips · 2019-08-04T10:22:03+02:00

William Phillips commented

2019-08-04 10:22:03 +02:00

System Information
Operating system: Windows 10, Version 1809 (OS Build 17763.615)
Graphics card: GeForce GTX 1050ti

Blender Version
Broken: 2.80
Worked: 2.79

Short description of error

Running a low-poly animation scene, with simple characters. Navigating the scene runs smoothly, but as soon as I try to watch it animated, the FPS drops to less than 10, making animation basically impossible. Same scene worked fine in 2.79.

Exact steps for others to reproduce the error
Run a moderately complex scene, and try playing an animation while in either Cycles or Eevee.

**System Information** Operating system: Windows 10, Version 1809 (OS Build 17763.615) Graphics card: GeForce GTX 1050ti **Blender Version** Broken: 2.80 Worked: 2.79 **Short description of error** Running a low-poly animation scene, with simple characters. Navigating the scene runs smoothly, but as soon as I try to watch it animated, the FPS drops to less than 10, making animation basically impossible. Same scene worked fine in 2.79. **Exact steps for others to reproduce the error** Run a moderately complex scene, and try playing an animation while in either Cycles or Eevee. ![Screenshot1.jpg](https://archive.blender.org/developer/F7648447/Screenshot1.jpg)

William Phillips commented

2019-08-04 10:22:03 +02:00

Added subscriber: @YeLeftHandMan

William Reynish commented

2019-08-04 11:23:01 +02:00

Added subscriber: @WilliamReynish

William Reynish commented

2019-08-04 11:23:01 +02:00

Do you have an example blend file that demonstrates this?

William Phillips commented

2019-08-04 12:35:46 +02:00

Dropbox Scene File Link

This file has quite a lot of objects, but the majority are hidden in a collection.

[Dropbox Scene File Link ](https://www.dropbox.com/s/7yki1q8flinwyvp/Scene01.blend?dl=0) This file has quite a lot of objects, but the majority are hidden in a collection.

William Reynish self-assigned this 2019-08-04 14:45:14 +02:00

William Reynish commented

2019-08-04 14:45:14 +02:00

Added subscriber: @Sergey

William Reynish commented

2019-08-04 14:45:14 +02:00

@Sergey is anything happening in this scene that is out of the ordinary? What makes it slow seems not to be the drawing, but the animation updates - this slowdown could be depsgraph-related?

Erick Tukuniata commented

2019-08-04 15:11:03 +02:00

Added subscriber: @ErickNyanduKabongo

Erick Tukuniata commented

2019-08-04 15:11:03 +02:00

I have noticed something like this as well, when scrubbing through my animation with the up-arrow, the animation got slow sometimes it doesn't play it some frames. I was suspecting my machine. Just putting this here just in case this is related.

Sergey Sharybin commented

2019-08-04 16:48:22 +02:00

Is deleting/excluding invisible collections making playback faster?

Sebastian Koenig commented

2019-08-04 17:12:16 +02:00

Added subscriber: @sebastian_k

Sebastian Koenig commented

2019-08-04 17:12:16 +02:00

Turn on Simplify, set Viewport Max Subdivision to 0.
That will give you realtime playback (at least it does for me).
There is at least 1 object that has a huge viewport subdivision level, and that's "YelfBeard". It is not visible, but the subdivision gets calculated nonetheless, slowing down your viewport. There might be another object using subdivision, so turning on Simplify for the viewport subdivision in the Render Properties helps a lot.

Turn on Simplify, set Viewport Max Subdivision to 0. That will give you realtime playback (at least it does for me). There is at least 1 object that has a huge viewport subdivision level, and that's "YelfBeard". It is not visible, but the subdivision gets calculated nonetheless, slowing down your viewport. There might be another object using subdivision, so turning on Simplify for the viewport subdivision in the Render Properties helps a lot.

William Phillips commented

2019-08-05 05:20:23 +02:00

In #68212#744893, @Sergey wrote:
Is deleting/excluding invisible collections making playback faster?

No, I deleted everything that had cloth, physics, and everything with a high-poly mesh that I could do without, and it barely made a dent.

In #68212#744908, @sebastian_k wrote:
Turn on Simplify, set Viewport Max Subdivision to 0.
That will give you realtime playback (at least it does for me).
There is at least 1 object that has a huge viewport subdivision level, and that's "YelfBeard". It is not visible, but the subdivision gets calculated nonetheless, slowing down your viewport. There might be another object using subdivision, so turning on Simplify for the viewport subdivision in the Render Properties helps a lot.

However, this made a HUGE difference. I set the max subdivisions to 0, and disabled the cloth for the beard in viewport, and it is much faster, although still nowhere near as smooth as 2.79. Thankyou for your help guys :). I guess the rest of this will be fixed with performance / optimization updates in the future?

> In #68212#744893, @Sergey wrote: > Is deleting/excluding invisible collections making playback faster? No, I deleted everything that had cloth, physics, and everything with a high-poly mesh that I could do without, and it barely made a dent. > In #68212#744908, @sebastian_k wrote: > Turn on Simplify, set Viewport Max Subdivision to 0. > That will give you realtime playback (at least it does for me). > There is at least 1 object that has a huge viewport subdivision level, and that's "YelfBeard". It is not visible, but the subdivision gets calculated nonetheless, slowing down your viewport. There might be another object using subdivision, so turning on Simplify for the viewport subdivision in the Render Properties helps a lot. However, this made a HUGE difference. I set the max subdivisions to 0, and disabled the cloth for the beard in viewport, and it is much faster, although still nowhere near as smooth as 2.79. Thankyou for your help guys :). I guess the rest of this will be fixed with performance / optimization updates in the future?

Emir Sinan Gürlek commented

2019-08-16 00:05:20 +02:00

Added subscriber: @filibis

Jacques Lucke commented

2019-08-21 13:28:48 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-08-21 13:28:48 +02:00

Changed status from 'Open' to: 'Archived'

Jacques Lucke closed this issue

2019-08-21 13:28:48 +02:00

Jacques Lucke commented

2019-08-21 13:28:48 +02:00

This does not look like a bug anymore, so there is no reason to handle this in the bug tracker. It will hopefully be solved with performance optimizations in the future.

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Viewport Animation Impossible? #68212