This is awesome! I'm doing a project where I needed to do exactly the same thing for Collada. I started using a very dirty way to interpolate the matrices, and now I'm almost finishing a nice way to interpolate using slerps (as suggested per Rob). As soon as I get this done, I'll post here. Also, I did something that *might* be useful for those who are using Collada animation: since we can't export animation-only on .DAE files, it's kinda hard to have separated files with different animations cycles (the geometry will end up on every file). I did something really stupid, but that solves the problem: a python script that gets only the <library_animations> info, and a parser that receives the information and creates a new animation clip on-the-fly for your Object3D. (attaching both python script and the class here, the parser uses pretty much all the code from the away3d Collada class).
Please give me feedback if you're using it or if there is a better way to do it :) On Tue, Jan 27, 2009 at 8:25 PM, ben <[email protected]> wrote: > > I'll can finally release my "snail fighter" game ;-) -- ~Gabriel Laet
ColladaAnimation.as
Description: Binary data
from xml.etree import ElementTree as ET from xml.etree.ElementTree import Element import os import sys import getopt """ @author Gabriel Laet (http://gabriellaet.com) Requires Python 2.5 """ def remove_namespace(doc, namespace): """Remove namespace in the passed document in place.""" ns = u'{%s}' % namespace nsl = len(ns) for elem in doc.getiterator(): if elem.tag.startswith(ns): elem.tag = elem.tag[nsl:] def read_collada(file_path, output_path): try: xml = ET.parse(file_path) except Exception, error: print "Error when parsing the XML file %s" % error return default_namespace = "http://www.collada.org/2005/11/COLLADASchema"; library_animations = xml.find("{%s}library_animations" % default_namespace) collada = Element("collada") collada.append(library_animations) remove_namespace(collada, default_namespace) ET.ElementTree(collada).write(output_path) if __name__ == "__main__": opts, args = getopt.getopt(sys.argv[1:], "i:") for option, value in opts: if option == "-i": input_file = value if input_file and output_file: read_collada(input_file, output_file) else: print "please provide input/output files -i -o"
