Blender Player stutters when navigating rendered image sequence #46465

New Issue

Rumen Belev · 2015-10-13T08:38:17+02:00

Rumen Belev commented

2015-10-13 08:38:17 +02:00

System Information
Operating system and graphics card
Windows 7 Ultimate
GeForce GTX 480

Blender Version
Broken: 2.76 48f7dd6
Worked: 2.75

Short description of error
Blender Player stutters when navigating rendered image sequence (PNG, TIF tested) by dragging with the left mouse on the screen.

Exact steps for others to reproduce the error
Play rendered image sequence (not video file) by pressing Ctrl+F11 or from the command prompt using "blender -a [path to first image in the sequence]"
When in play mode - the playback is fine.
When in "drag" mode the player lags while displaying frames. Clicking on different points in the screen loads the image frame faster.
This behavior is the same, no matter the time indicator is on or off (by pressing I on the keyboard).

**System Information** Operating system and graphics card Windows 7 Ultimate GeForce GTX 480 **Blender Version** Broken: 2.76 48f7dd6 Worked: 2.75 **Short description of error** Blender Player stutters when navigating rendered image sequence (PNG, TIF tested) by dragging with the left mouse on the screen. **Exact steps for others to reproduce the error** Play rendered image sequence (not video file) by pressing Ctrl+F11 or from the command prompt using "blender -a [path to first image in the sequence]" When in play mode - the playback is fine. When in "drag" mode the player lags while displaying frames. Clicking on different points in the screen loads the image frame faster. This behavior is the same, no matter the time indicator is on or off (by pressing I on the keyboard).

Rumen Belev commented

2015-10-13 08:38:17 +02:00

Changed status to: 'Open'

Rumen Belev commented

2015-10-13 08:38:17 +02:00

Added subscriber: @syziph

Campbell Barton commented

2015-10-15 07:47:56 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2015-10-15 07:47:56 +02:00

While I couldn't redo the bug. I suspect this is caused by mouse motion adding a lot of in-between events, which can be at a higher FPS then the playback rate. In this case your system could get behind in loading them.

Can you confirm that this doesn't happen for low-res images? (100x100 or so).
Its also possible that updating the state of the audio driver is giving some overhead, could you try set audio output to None in the system preferences. - https://www.blender.org/manual/preferences/system.html#sound

Suggested fix is to skip mouse events if there are other mouse events - ahead in the queue, using GHOST_EventManager::peekEvent.

While I couldn't redo the bug. I suspect this is caused by mouse motion adding a lot of *in-between* events, which can be at a higher FPS then the playback rate. In this case your system could get behind in loading them. - Can you confirm that this doesn't happen for low-res images? (100x100 or so). - Its also possible that updating the state of the audio driver is giving some overhead, could you try set audio output to **None** in the system preferences. - https://www.blender.org/manual/preferences/system.html#sound Suggested fix is to skip mouse events if there are other mouse events - ahead in the queue, using `GHOST_EventManager::peekEvent`.

blender-admin commented

2015-10-15 08:25:43 +02:00

This issue was referenced by 0be6ca0b83

This issue was referenced by 0be6ca0b839ffc28d02b9e1bd50cdd81df3b6aeb

Campbell Barton commented

2015-10-15 08:32:52 +02:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2015-10-15 08:32:52 +02:00

Rumen Belev commented

2015-10-15 12:44:07 +02:00

Can you confirm that this doesn't happen for low-res images? (100x100 or so).

I confirm that there is no problem at 100x100 resolution.

Its also possible that updating the state of the audio driver is giving some overhead, could you try set audio output to None in the system preferences.

Seting the Audio Device to none does not fix this problem.

*Can you confirm that this doesn't happen for low-res images? (100x100 or so).* I confirm that there is no problem at 100x100 resolution. *Its also possible that updating the state of the audio driver is giving some overhead, could you try set audio output to None in the system preferences.* Seting the Audio Device to none does not fix this problem.

Alexander commented

2015-10-31 14:26:55 +01:00

Added subscriber: @lunariusis

Alexander commented

2015-10-31 14:26:56 +01:00

This bug at high resolutions render, such as 1920X1080.
50% render no bug, as 100% there is a bug .
My English is very bad, sorry.

This bug at high resolutions render, such as 1920X1080. 50% render no bug, as 100% there is a bug . My English is very bad, sorry.

Alexander commented

2015-11-04 23:08:48 +01:00

Changed status from 'Resolved' to: 'Open'

Alexander reopened this issue

2015-11-04 23:08:48 +01:00

Alexander commented

2015-11-04 23:08:48 +01:00

This bug at high resolutions render, such as 1920X1080.
50% render no bug, as 100% there is a bug .
My English is very bad, sorry.

The new version of blender 2.7b this problem remained.

This bug at high resolutions render, such as 1920X1080. 50% render no bug, as 100% there is a bug . My English is very bad, sorry. The new version of blender 2.7b this problem remained.

Bastien Montagne commented

2015-11-06 21:39:47 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2015-11-06 21:39:47 +01:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2015-11-06 21:39:47 +01:00

Bastien Montagne self-assigned this 2015-11-06 21:39:47 +01:00

Bastien Montagne commented

2015-11-06 21:39:48 +01:00

Please do not reopen bug yourself.

And fix is in master (you can test it by downloading the latest build from our buildbot), not in 2.76b release.

Please do not reopen bug yourself. And fix is in master (you can test it by downloading the latest build from [our buildbot](https://builder.blender.org/download)), not in 2.76b release.

Alexander commented

2015-11-07 23:14:21 +01:00

The bug is present in version https://builder.blender.org/download/blender-2.76-02f3ceb-win64.zip . Sorry for the opening of a bug.
At a resolution 960x540 and below, the error is not observed. If the resolution is higher than 960x540 (eg 1920X1080) error appears again.
Possible problem in the pre-cache?

The bug is present in version [[ https://builder.blender.org/download/blender-2.76-02f3ceb-win64.zip ]]. Sorry for the opening of a bug. At a resolution 960x540 and below, the error is not observed. If the resolution is higher than 960x540 (eg 1920X1080) error appears again. Possible problem in the pre-cache?

Alexander commented

2016-03-20 19:09:46 +01:00

The bug is present in version blender-2.77-windows64.
At a resolution 960x540 and below, the error is not observed. If the resolution is higher than 960x540 (eg 1920X1080) error appears again.

The bug is present in version blender-2.77-windows64. At a resolution 960x540 and below, the error is not observed. If the resolution is higher than 960x540 (eg 1920X1080) error appears again.

Aaron Carlisle commented

2016-03-20 19:17:16 +01:00

Added subscriber: @Blendify

Aaron Carlisle commented

2016-03-20 19:17:16 +01:00

@lunariusis please create a new report.

Campbell Barton commented

2016-03-21 03:39:18 +01:00

Likely this lag may just be time loading the files then.

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Blender Player stutters when navigating rendered image sequence #46465