Thinking of what you have just said my question is how much of those 3 seconds is loading time vs actual parsing(supposing that you load your models) ? Because if i bring in serialized model file with bytearray , it still needs to get parsed , but if the loading part is swift we can spare more time on the whole routine .
On Wed, Apr 28, 2010 at 3:29 PM, tarwin <[email protected]> wrote: > If you've got animation in there you're up against a whole other > problem. One thing I've been looking (actively working on) at is > loading one Collada animation and substituting Vertex data (just a > quick replace in the XML) for the model I want, then using a hack of > Katopz' MD2Buidler creating AnimatedMeshs out of it. The two slowest > parts here are the parsing of the Collada and then the creation of the > AnimatedMesh, but I think (and this is where I'm still unsure) > creating some kind of pre-parsed Collada format might help a lot here. > > The idea is to build a serialized version of the Collada object > (Away3D object) that I can build into a Collada super quick, rather > than building it directly from the XML which is super slow (mostly > because XML reading is slow). If you have the serialized Collada > object in memory already hopefully you could just replace parts of it > (vertex data) and have it done super quick. > > It currently takes over 3 seconds to process a Collada and then create > an AnimatedMesh (1500 verts, lots of bones and 5 seconds of animation) > but I'm guessing this could be cut down quite considerably if you have > the cached Collada (maybe 1 second which could then be hidden with > some kind of transition). > > Thoughts anyone? How would YOU hold Collada info to create one > quickly, but also minimize file size? How about just creating a Class > wihich has a bunch of lines like: > > // not working code, just a quick idea !! > c = new Collada(); > m = collada.addMesh(Vector(123,43,.34,-34,34,-343)); > m.addBones(Vector(123,43,.34,-34,34,-343)); > -- Michael Ivanov ,Programmer Neurotech Solutions Ltd. Flex|Air |3D|Unity| www.neurotechresearch.com Tel:054-4962254 [email protected] [email protected]
