   looking for suitable model format (skeletal, keyed animation)
  hello,i am looking for a file format that can handle skeletal animations. and each animation keyframe should be able to contain a function that defines the acceleration of the animation.for example linear, would mean the speed from one keyframe to the next is constant, whereas an arctangens would mean it starts out slowy, then speeds up and finishes slowly again.(tell me if you didnt get that explanation)does such a model format even exist? what about the MD5 or Milkshape3D, i see they have skeletal animation, but do they have this keyed animation?thanks a lot!   
  As far as I know does milkshape not allow you to include this information. However, you can give bones names, and you can tag / prefix the bone names to indicate its acceleration. (Probably)   ;  You could try with Lightwave format but I wouldn't consider it widely used. The specs of the file format are openly available, if you are interested.   ;  dotXSI, FBX and collada all store animation curves. They do linear, hermite and cubic curve types.;  thank you very much so far!if i use one of these formats (also md5 or milkshape) in a commercial project, is this ok?or are these formats maybe protected by some licenses?   