Shapes Keys + Drivers don't work in BGE in 2.5 (in 2.49 do) #22874

New Issue

Mario Mey · 2010-07-16T03:06:45+02:00

Mario Mey commented

2010-07-16 03:06:45 +02:00

Category: Animation
Duplicates: #26137

%%%Open the file in 2.49, and enter in the Game Engine. The sphere react to the bone that modify the shapekey.

Open in 2.5, it doesn't work.

The sphere is the child of the armature and it has a vertex group called as the bone "b" with all the vertex at weight 0.

Christopher Plush told me to do in that way and in 2.49 worked perfectly.

Blender 2.52.5 r30011

OS: Ubuntu 10.4

(this from 2.49 system information)
Platform: linux2

OpenGL:

Renderer: GeForce 7000M / nForce 610M/PCI/SSE2
Vendor: NVIDIA Corporation
Version: 2.1.2 NVIDIA 195.36.24%%%

**Category**: Animation **Duplicates**: #26137 %%%Open the file in 2.49, and enter in the Game Engine. The sphere react to the bone that modify the shapekey. Open in 2.5, it doesn't work. The sphere is the child of the armature and it has a vertex group called as the bone "b" with all the vertex at weight 0. Christopher Plush told me to do in that way and in 2.49 worked perfectly. Blender 2.52.5 r30011 OS: Ubuntu 10.4 (this from 2.49 system information) Platform: linux2 **** OpenGL: **** - Renderer: GeForce 7000M / nForce 610M/PCI/SSE2 - Vendor: NVIDIA Corporation - Version: 2.1.2 NVIDIA 195.36.24%%%

Mario Mey commented

2010-07-16 03:06:45 +02:00

Changed status to: 'Open'

Mario Mey commented

2010-08-07 02:04:47 +02:00

%%%Any news...?%%%

Joerg Mueller commented

2010-08-10 16:16:16 +02:00

%%%Hey, I spent some time on this one (I have not used the animation system before and I know/knew nothing about the code that does this):

I first tried to find the code that's

First of all: if you use a shape key actuator, shape keys work, in the end this is not a shape key bug!

I tried to redo the test file here, what really doesn't work are drivers in the BGE, I've attached my own testfile where the cube location is also driven by the bone and you'll see in both 2.4 and 2.5 see that it doesn't work in the BGE but in normal animation playback.

That you have to add a vertex group (name and weight don't seem to matter!!!) to get the driven shape key working in the BGE is pretty strange already, so I guessed there is a dirty hack to get this working. And for some reason the hack doesn't work anymore in 2.5 (maybe due to the new animation system).

cam (ideasman42) confirmed this assumption, quote: <ideasman_42> I think we hacked drivers + shape keys

This has been done for yo frankie.

My suggestion now is not to fix the hack, but implement driver support in the BGE, this actually makes the bug into a feature request, but the question is if there's time for that and how much work it is, that's something to be decided by cam, therefore assigned to him. :)%%%

%%%Hey, I spent some time on this one (I have not used the animation system before and I know/knew nothing about the code that does this): I first tried to find the code that's First of all: if you use a shape key actuator, shape keys work, in the end this is not a shape key bug! I tried to redo the test file here, what really doesn't work are drivers in the BGE, I've attached my own testfile where the cube location is also driven by the bone and you'll see in both 2.4 and 2.5 see that it doesn't work in the BGE but in normal animation playback. That you have to add a vertex group (name and weight don't seem to matter!!!) to get the driven shape key working in the BGE is pretty strange already, so I guessed there is a dirty hack to get this working. And for some reason the hack doesn't work anymore in 2.5 (maybe due to the new animation system). cam (ideasman42) confirmed this assumption, quote: <ideasman_42> I think we hacked drivers + shape keys This has been done for yo frankie. My suggestion now is not to fix the hack, but implement driver support in the BGE, this actually makes the bug into a feature request, but the question is if there's time for that and how much work it is, that's something to be decided by cam, therefore assigned to him. :)%%%

Joerg Mueller commented

2010-08-10 16:21:00 +02:00

%%%Ahh, just found this: https://projects.blender.org/tracker/index.php?func=detail&aid=22850&group_id=9&atid=498

I closed it marked as a duplicate, but note that there's yet another driver test file.%%%

%%%Ahh, just found this: https://projects.blender.org/tracker/index.php?func=detail&aid=22850&group_id=9&atid=498 I closed it marked as a duplicate, but note that there's yet another driver test file.%%%

Mario Mey commented

2010-08-10 17:18:59 +02:00

%%%Joerg, thanks for take a look to this kind of bug.

I tried your file and works like mine, in 2.49 it works, in 2.5 it doesn't.

I really appreciate the time and effort that you put in this development. I don't want to hurry anybody, please, don't take this as a hurry. I only tell you that I am doing a digital puppeteer and I would need this function working when I finish the work (I think to release it in november). I read that you don't know how much time this will cost... but if there is a easy way to hack it temporarily, to make it work, it will let me test it and rehearse with it. Even if just only the shapes keys.

Thanks a lot.%%%

%%%Joerg, thanks for take a look to this kind of bug. I tried your file and works like mine, in 2.49 it works, in 2.5 it doesn't. I really appreciate the time and effort that you put in this development. I don't want to hurry anybody, please, don't take this as a hurry. I only tell you that I am doing a digital puppeteer and I would need this function working when I finish the work (I think to release it in november). I read that you don't know how much time this will cost... but if there is a easy way to hack it temporarily, to make it work, it will let me test it and rehearse with it. Even if just only the shapes keys. Thanks a lot.%%%

Mario Mey commented

2010-09-28 04:25:57 +02:00

%%%Any news?

Thanks a lot.%%%

%%%Any news? Thanks a lot.%%%

Mario Mey commented

2011-02-16 20:36:42 +01:00

%%%Something...?%%%

Dalai Felinto commented

2011-02-16 21:05:02 +01:00

%%%Mario, stick to 2.49 for the time being. ShapeKeys themselves are still with problems in 2.50.
(e.g. http://projects.blender.org/tracker/?func=detail&aid=25991&group_id=9&atid=306)

Renaming the entry for clarity reasons (since it's a driver problem).
Maybe there is another way of accomplishing what you are trying to do?%%%

%%%Mario, stick to 2.49 for the time being. ShapeKeys themselves are still with problems in 2.50. (e.g. http://projects.blender.org/tracker/?func=detail&aid=25991&group_id=9&atid=306) Renaming the entry for clarity reasons (since it's a driver problem). Maybe there is another way of accomplishing what you are trying to do?%%%

Mario Mey commented

2011-02-22 07:58:27 +01:00

%%%Thanks for responding, Dalai Felinto.

I'm working on Pinokio 3D, a digital puppeteer (http://www.youtube.com/watch?v=oC6XF3NS7ys). It can work without ShapeKeys... but with so much skinning work to make the face deforms. And I have a lot of ideas that they won't exist without ShapeKeys. I am waiting for that.

I am working in 2.5 and it has more than 100 actions... I can't go back to 2.49 (also, I like 2.5 so much more that 2.49!)

If it is a drivers problem... when it is fixed, can we use FK-IK sliders, for example?

Thanks for your time!%%%

%%%Thanks for responding, Dalai Felinto. I'm working on Pinokio 3D, a digital puppeteer (http://www.youtube.com/watch?v=oC6XF3NS7ys). It can work without ShapeKeys... but with so much skinning work to make the face deforms. And I have a lot of ideas that they won't exist without ShapeKeys. I am waiting for that. I am working in 2.5 and it has more than 100 actions... I can't go back to 2.49 (also, I like 2.5 so much more that 2.49!) If it is a drivers problem... when it is fixed, can we use FK-IK sliders, for example? Thanks for your time!%%%

Mitchell Stokes commented

2012-06-27 05:17:34 +02:00

%%%Shape key drivers should be working in the BGE (as of 2.60). The shape key drivers appear to be working in the provided example files in trunk. Could you please verify if your problem is solved?%%%

Mitchell Stokes commented

2012-07-05 23:55:27 +02:00

%%%I've not gotten a reply in over a week, and since the example works in trunk, I'm going to assume the problem is fixed.%%%

Mitchell Stokes commented

2012-07-05 23:55:27 +02:00

Changed status from 'Open' to: 'Resolved'

Mitchell Stokes closed this issue

2012-07-05 23:55:27 +02:00

Mario Mey commented

2012-07-06 13:22:04 +02:00

%%%Yes, it's fixed! I've been using shape keys in BGE since last year. But I didn't test other drivers.

Thanks.%%%

%%%Yes, it's fixed! I've been using shape keys in BGE since last year. But I didn't test other drivers. Thanks.%%%

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Shapes Keys + Drivers don't work in BGE in 2.5 (in 2.49 do) #22874