[Bf-python] Re: Fwd: Ogre exporter and Blender

[Toni Alatalo]

On Thursday 29 December 2005 09:07, you wrote:
> Hi here is some feedback on the animation API from the Ogre exporter

thanks for posting, i think the bf-python list is the place for this though so 
am taking the liberty to reply there.

> From: Michael Reimpell <M.Reimpell at ..>
> It would be very nice to have BPy access to the pose_mat matrix of
> bPoseChannel. A typical export of ik/constrained armature animation is to

iirc Joseph has this now?

> sample these matrices over a keyframe range. This is the only robust and
> feature save way to export constrained animations without bothering the
> artist to bake the animation himself after every little tweak.

also the baking is still in the works.. we still need it urgently for 
animating at Orange, and may have a solution now, but that's why i also made 
some api for that .. and surely what Joseph has made allows it more

> I'm still evaluating support for shape animations. Although the keys
> themself are available through Blender.NMesh.getKey(), I couldn't figure

the new Key module has something too.. the shape-key using lipsync scripts 
needed the new things there, 
http://www.blender.org/documentation/240PythonDoc/Key-module.html

> out how to access action stripes via BPy yet. Also, I haven't found a way

so you wish to export NLA-made animations to ogre too? with the baking there 
should be soon the capability to bake NLA to a single action, which i figure 
is needed with games,

but would the Ogre animation system somehow support exported NLA data too :o

i looked at the Strip struct recently with py in mind, and the NLA api has 
been in the talks, but waiting a little bit with Ton's work to settle down on 
it .. like we just before christmas got the new path system that supports 
having several actions on a single path, and getting that required changing 
the NLA architecture iirc .. changing how striding is there

i guess now is a good time to work on the NLA api, so feel free anyone .. i 
may if orange needs it, but is not in todo now.

> If the game engine supports armature animation again, It would be nice to
> have access to Action Actuators from BPy.

i suppose we get the same (quite good, i've found!) level of support that used 
to be there.

> and only useful to very few Blender users. The only thing that could be
> useful to others are the gui classes of the vertex animation exporter:
> http://www-public.tu-bs.de:8080/~y0007777/Ogre3D/preview-latest.tar.gz

i think we should put some kind of Blender.UI module to bpymodules in 
bf-blender, synthesizing work from different script such as this.

also i hope we get a export/import architecture, perhaps with base classes 
and/or utility functions commonly needed.

> Michael

just quick 2cents..

~Toni