Object Animation is different in 3d View and GameEngine. #28853

New Issue

Mario Mey · 2011-10-09T19:00:22+02:00

Mario Mey commented

2011-10-09 19:00:22 +02:00

Category: Animation

%%%The action is the same, the object is using Quaternions, the Action has Quaternions keyframes... but the object rotates different.

Open the file.

Alt-A - Look the animation

Enter Game Engine - Look the animation%%%

**Category**: Animation %%%The action is the same, the object is using Quaternions, the Action has Quaternions keyframes... but the object rotates different. Open the file. Alt-A - Look the animation Enter Game Engine - Look the animation%%%

Mario Mey commented

2011-10-09 19:00:22 +02:00

Changed status to: 'Open'

Sergey Sharybin commented

2011-10-10 09:22:39 +02:00

%%%Moved from Blender 2.5 Bug Tracker to Game Engine%%%

Sergey Sharybin commented

2011-10-10 09:22:39 +02:00

%%%Moving to the BGE tracker.%%%

Dalai Felinto commented

2011-10-12 19:22:27 +02:00

%%%confirmed. to simplify the file the Action actuator can be use as well.
The problem seems that the rotation is barely working there. Assigning to Mitchell%%%

%%%confirmed. to simplify the file the Action actuator can be use as well. The problem seems that the rotation is barely working there. Assigning to Mitchell%%%

Mario Mey commented

2011-12-07 17:52:45 +01:00

%%%I can't make a simplified file... but I think the bug is similar to this.

A camera (as object) Action is working ok inside Blender. But in BlenderPlayer, it doesn't move... or move much less than it should. It is very strange, because I have some other files that use the same python files and I don't find differences between the files... but in the these files, it works. In Blender and in BlenderPlayer.

Moguri, if you want the 30mb file, mail me: mariomey@gmail.com.

Thanks...
%%%

%%%I can't make a simplified file... but I think the bug is similar to this. A camera (as object) Action is working ok inside Blender. But in BlenderPlayer, it doesn't move... or move much less than it should. It is very strange, because I have some other files that use the same python files and I don't find differences between the files... but in the these files, it works. In Blender and in BlenderPlayer. Moguri, if you want the 30mb file, mail me: mariomey@gmail.com. Thanks... %%%

Mario Mey commented

2011-12-07 19:38:05 +01:00

%%%Sorry about the last post, it was a error of mine. I don't know why, in this file, it start BGE and stay freeze for about 2 seconds. In that 2 seconds would be action that didn't work. Forget about that.

Moguri... any news about the bug of this report?%%%

%%%Sorry about the last post, it was a error of mine. I don't know why, in this file, it start BGE and stay freeze for about 2 seconds. In that 2 seconds would be action that didn't work. Forget about that. Moguri... any news about the bug of this report?%%%

Mitchell Stokes commented

2014-05-05 09:30:06 +02:00

Did this report have an attached blendfile?

Mario Mey commented

2014-05-05 15:06:06 +02:00

Here it is. The bug is still there, in 2.7.

14_action_different.blend

Here it is. The bug is still there, in 2.7. [14_action_different.blend](https://archive.blender.org/developer/F86987/14_action_different.blend)

Mitchell Stokes commented

2014-05-13 02:02:03 +02:00

It looks like all of the BGE's object IPO assumes 3 values for rotation (it's based on Euler rotations). However, quaternions use 4 values. This means the BGE is only using the first 3 (out of four) values for quaternions, which gives an incorrect rotation.

Eric Wahl commented

2015-04-10 10:01:24 +02:00

Added subscriber: @EricWahl

Eric Wahl commented

2015-04-10 10:01:24 +02:00

Are there any News or Actions on this bug? Or a proposal how to fix it without getting Problems with gimbal lock? (therefore I Need to use the quaternions...

Aaron Carlisle commented

2019-06-29 02:15:30 +02:00

Added subscriber: @Blendify

Aaron Carlisle commented

2019-06-29 02:15:30 +02:00

Changed status from 'Open' to: 'Archived'

Aaron Carlisle closed this issue

2019-06-29 02:15:30 +02:00

Aaron Carlisle commented

2019-06-29 02:15:30 +02:00

This task is being closed because the BGE has been removed in Blender 2.8.

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Object Animation is different in 3d View and GameEngine. #28853