So I've been looking into the Inter-Quake Model (IQM) file format from http://lee.fov120.com/iqm/. It looks like a very interesting file format and I want to use it in my game. I picked up the SDK and all, but there's just one thing holding me back right now. I want to know if its possible to blend two animations together. I was looking into this for the MD5 file format a while ago, but that was for a different game and I don't really want to use it for this one (I prefer to use binary files now). But I know that it supports animation interpolation.

So my question is, does the IQM file format support animation blending/interpolation? I know I can just create animation sequences but like say I was making a flight simulator and wanted the to be able to lower the gears while using the rudder, ailerons, and elevators? Would I have to create an animation for each multitask action?

Btw, I already know about joint linking (I used that in with MD5), but I don't want to do that with IQM cause it will require multiple *.iqm files for a single in-game model (or did I miss read something somewhere?).

Oh, and if you know of a better file format than IQM I'd love to hear about it (I know I can just create my own, but that takes time). I really only have a few requirements: (1) Needs to be a binary file (2) Needs to support animation blending/interpolation (3) Needs to as lightweight as possible (e.g. no COLLADA metadata-like stuff).

EDIT: This is an OpenGL tagged topic because I will be using OpenGL as my rendering engine, so if the file format requires DirectX specific stuff (which would be a pretty big design flaw) it's gonna be a no-go. Also, file formats with some type of SDK or samples (e.g. loader, sample game) would be even better (though I will still consider file formats without these additions)!

Thanks,
Josh

Look at the sample code that comes with the devkit - it contains everything you need for this. Summary is: yes, you can blend animations, and yes, you can do it with OpenGL (it's just code, API is irrelevant here).

Look at the sample code that comes with the devkit - it contains everything you need for this. Summary is: yes, you can blend animations, and yes, you can do it with OpenGL (it's just code, API is irrelevant here).

Ok, cool thanks!