We use a program called FaceGen to model our 3D Face Model, and FaceGen allows for a number of Shape Keys that get prebuilt into the model.
I'm almost positive that Irrlict unfortunately does not support Shape Keys however, is there a way I can work around this, or will I need to fiddle with Animation Morph Targets, if so, can someone link me a tutorial to that?
For information sake, Face Gen can output according to the website in the following formats...
Export to 3D Studio (3DS), Maya ASCII (ma), Lightwave 6.x LWO2 (LWO), Wavefront OBJ, Softimage dotXSI 3.0 (XSI), VRML 1 (wrl), VRML 97 (wrl) or STL