Toni Alatalo wrote: > On Feb 20, 2009, at 6:59 PM, Paul Fishwick wrote: > > >> tutorial4.material which contains a reference to InflateVP, which >> references shader inflate.cg, which moves vertices (simulating >> "inflation"): >> > > that sounds like a 'procedural vertex animation', a 'geometry > shader'(?) or something like that (people often talk of shaders when > mean just a program running on the gpu) that can inflate any mesh. so a > function, piece of code, not animation data. > yeah - i agree that the word "shader", even by itself, is somewhat confusing. > what i was referring to was pre-made animations, that only work with > the specific mesh that they were made for (e.g. a face turning to > smile). > ok - I am new to figuring out how this works so we'll play around with the concepts... We'd like to do avatars with facial animation and also vertex animation of other, freeform sorts.
-p > ~Toni > > >> http://artis.imag.fr/~Xavier.Decoret/resources/ogre/tutorial4.html >> >>> vertex animation is probably more similarily to >>> skeletal. there is the point though that at least the skel morphing >>> can >>> be run on the gpu (and is by default), did you see shader references >>> related to that? >>> >>> well i googled now a sec and the manual says: >>> "Vertex animation is stored inside the .mesh file since it is tightly >>> linked to the vertex structure of the mesh" >>> http://ogre3d.org/docs/manual/manual_78.html#SEC338 >>> >>> >> I'll check this out >> >> >> >> >>>> -p >>>> >>>> >>> ~Toni >>> >>> >>> >>>> Toni Alatalo wrote: >>>> >>>> >>>>> On Feb 19, 2009, at 4:56 PM, Paul Fishwick wrote: >>>>> >>>>> >>>>> >>>>> >>>>>> I have no access. Blender has an OGRE mesh exporter. However, when >>>>>> you say ".bvh files are not supported by rex avatar", I interpret >>>>>> this >>>>>> to >>>>>> >>>>>> >>>>>> >>>>> (...) >>>>> >>>>> >>>>> >>>>>> 2) to create animations, one must use the ".skeleton" Animation >>>>>> Pack >>>>>> .skeleton file contain the keyframes (since .bvh is not used) and >>>>>> is >>>>>> the .skeleton file also used >>>>>> >>>>>> >>>>>> >>>>> yes, .skeleton is the Ogre animation format. >>>>> >>>>> the Blender Ogre Meshes and Animation exporter, the normal exporter >>>>> that you probably are using, exports always a .mesh and .material >>>>> file, >>>>> and when the thing you are exporting is an armature (the Blender >>>>> name >>>>> for skeleton) with animations (in Blender: actions), a .skeleton >>>>> too, >>>>> which indeed has the animation data (every frame and not just >>>>> keyframes >>>>> IIRC, as Ogre does not support constraints etc. similar to movie >>>>> animations so the animations are 'baked' upon export) >>>>> >>>>> bvh is just another format, at least in principle you can import it >>>>> to >>>>> e.g. Blender to convert to the Ogre format, but you need to have a >>>>> compatible rig then. IIRC the Blender bvh importer actually creates >>>>> a >>>>> bvh skel for you, but actions are reusable cross rigs so you can use >>>>> the imported ones with any, as long as you have the bone names >>>>> according to the bvh convention. >>>>> >>>>> >>>>> >>>>> >>>>>> for vertex animation? >>>>>> >>>>>> >>>>>> >>>>> i don't remember how vertex animation (shape / morph keys) are, >>>>> perhaps >>>>> in the same file. >>>>> >>>>> >>>>> >>>>> >>>>>> -p >>>>>> >>>>>> >>>>>> >>>>> ~Toni >>>>> >>>>> >>>>> >>>>> >>>> -- >>>> Paul Fishwick, PhD >>>> Professor and Director, Digital Arts and Sciences Programs >>>> University of Florida >>>> Computer & Information Science and Eng. Dept. >>>> Bldg. CSE, Room 301 >>>> P.O. Box 116120 >>>> Gainesville, FL 32611 >>>> Email: fishw...@cise.ufl.edu >>>> Phone: (352) 392-1414 >>>> Fax: (352) 392-1220 >>>> Web: http://www.cise.ufl.edu/~fishwick >>>> >>>> >>>> >>>> >>>> >> -- >> Dr. Paul A. Fishwick E-Mail: fishw...@cise.ufl.edu >> Dept. of Computer & Info Phone & FAX: (352) 392-1414 >> Science and Engineering WWW: http://www.cise.ufl.edu/~fishwick >> University of Florida (PGP Key available at above WWW address) >> P. O. Box 116120 >> 332 Bldg. CSE, Gainesville, FL 32611-6120 >> >> >> >> > > > > -- Dr. Paul A. Fishwick E-Mail: fishw...@cise.ufl.edu Dept. of Computer & Info Phone & FAX: (352) 392-1414 Science and Engineering WWW: http://www.cise.ufl.edu/~fishwick University of Florida (PGP Key available at above WWW address) P. O. Box 116120 332 Bldg. CSE, Gainesville, FL 32611-6120 --~--~---------~--~----~------------~-------~--~----~ this list: http://groups.google.com/group/realxtend realXtend home page: http://www.realxtend.org/ -~----------~----~----~----~------~----~------~--~---
