scene.beginAnimation--From,To?

[ProfessorF]

What do the from and to parameters in scene.beginAnimation represent?

 

I ask because Dude has 31 key frames (see image below). So originally I did:

                scene.beginAnimation(skeletons[0], 0, 30, true, 1.0);

but this didn't work. So I noticed in the Wiki that the examples used 100:

                scene.beginAnimation(skeletons[0], 0, 100, true, 1.0);

 

That works.

 

But it raises the question: What do "from" and "to" mean?  I have animation files that start at precise frames (idle, walking, running, etc) so I need to know how to convert from frames to whatever from & to mean.

 

Thank you in advance.

 

 

[GameMonetize]

from and to reference the key frame numbers.

 

The blender exporter creates a first key at 0 and the last key at bpy.context.scene.frame_end - bpy.context.scene.frame_start

 

So in your case it should work with 0, 31. What do you get when you're using these values?

[ProfessorF]

Oh, okay.  I'm using FbxExporter, not the Blender exporter

 

If I use the FbxExporter on dude.fbx and I do 0..31,  I only get one-third of the animation.

 

Anyway I was experimenting with another model, and I've determined that beginAnimation from/to are percentages from 0..100

 

Because, in my other model (not dude.fbx), my subAnimations work fine if I use the following formula to convert from 0..100

 

from = keyframeStart/totalFrames * 100 // where totalFrame is all the frames in the animation, idle, walking, running, sitting, etc. 

to = keyframeEnd/totalFrames * 100

 

I'll experiment with the BlenderExporter...

 

Thanks!

[ProfessorF]

Haven't tried the Blender export yet, but just to make it clearer, below is Jock.  Jock's idle animation is 0..48, there are 520 frames total in Jock because the other frames have run, sit, walk, wave, etc. animations.

 

scene.beginAnimation(skeletons[0], 0, 48, true, 1.0) does not work.  It plays 48% of the frames

 

to get it to work I need to do:

 

scene.beginAnimation(skeletons[0], 100*0/520, 100*48/520, true, 1.0) 

 

 

[GameMonetize]

You're absolutely right:to be able to always have a single time referential, I rescale animations to 0..100