But I can't find a function that uses them? I'm guessing you can just pick the frames to loop through, but I see things like "frame animation interpolation" in the code and I think to myself, "Hey, that looks handy!"
I asked the exact same question, and Hybrid answered:
'No, there are no named animations for MD3. You should use the animation loop with frame numbers as with other animation formats. Named animations for all formats will be added in a later release of Irrlicht.'