Mouselook actuator behaves badly at >60fps. #43732

Closed
opened 2015-02-19 04:37:06 +01:00 by Mike Pan · 16 comments

When the framerate of the game is low, especially if it's taken up by logic processing, the new mouse look actuator behaves very 'jittery'.

To reproduce, use Blender 2.73 and run the sample file. Tweak the ITERATION value in the text editor until framerate falls below 60. Notice mouse-look becomes very unreliable.

Sample File: mouselook.blend

The same issue was noticed by another user on SE: http://blender.stackexchange.com/questions/25920/

When the framerate of the game is low, especially if it's taken up by logic processing, the new mouse look actuator behaves very 'jittery'. To reproduce, use Blender 2.73 and run the sample file. Tweak the ITERATION value in the text editor until framerate falls below 60. Notice mouse-look becomes very unreliable. Sample File: [mouselook.blend](https://archive.blender.org/developer/F144569/mouselook.blend) The same issue was noticed by another user on SE: http://blender.stackexchange.com/questions/25920/
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @MikePan

Added subscriber: @MikePan
Author

The same issue was obsersved on OS X as well as Windows 8.1.

The same issue was obsersved on OS X as well as Windows 8.1.
Jorge Bernal self-assigned this 2015-02-19 07:46:26 +01:00
Member

Hi mpan3,

Could you download a dayly build to check if the issue is mitigated/solved?

Hi mpan3, Could you download a dayly build to check if the issue is mitigated/solved?
Author

The issue is still present in today's daily build (5721863).

The issue is still present in today's daily build (5721863).
Member

If you change the always sensor by a mouse sensor triggering with the movement then It improves the behaviour a lot.

If you change the always sensor by a mouse sensor triggering with the movement then It improves the behaviour a lot.
Author

I tried that, same behaviour. As soon as logic takes more than 3ms to execute on my machine, I get very unresponsive mouselook behaviour, even if the framerate is still at 60.

I tried that, same behaviour. As soon as logic takes more than 3ms to execute on my machine, I get very unresponsive mouselook behaviour, even if the framerate is still at 60.
Member

An pair of additional questions, (sorry but it is difficult figure it without info):-),

which system do you have? and more important, do you have a setup with 2 computer monitors?

An pair of additional questions, (sorry but it is difficult figure it without info):-), which system do you have? and more important, do you have a setup with 2 computer monitors?
Author

I noticed this behaviour on a single monitor Mac, a Mac with external monitor, as well as a single monitor Windows computer.

Here is a video capture of the problem: https://www.youtube.com/watch?v=NJmofA76Hqs

Hopefully that helps.

Did you try adjusting the script to add a workload to the game?

I noticed this behaviour on a single monitor Mac, a Mac with external monitor, as well as a single monitor Windows computer. Here is a video capture of the problem: https://www.youtube.com/watch?v=NJmofA76Hqs Hopefully that helps. Did you try adjusting the script to add a workload to the game?

Added subscriber: @dfelinto

Added subscriber: @dfelinto

Something is strange with the Mouse Actuator, remember to re-check this report whenever #43748 is fixed.

Something is strange with the Mouse Actuator, remember to re-check this report whenever #43748 is fixed.
Member

Also, I think that it is a problem totally related with #4096 / #41181

Also, I think that it is a problem totally related with #4096 / #41181
Member

Closed as duplicate of #41181

Closed as duplicate of #41181
Member

Changed status from 'Duplicate' to: 'Open'

Changed status from 'Duplicate' to: 'Open'
Member

Sorry I merge the task with a wrong one. Now I will do with the correct one.

Sorry I merge the task with a wrong one. Now I will do with the correct one.
Member

Closed as duplicate of #4096

Closed as duplicate of #4096
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Reference: blender/blender#43732
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