"NMF Exporter". Download it here:
http://www.independentdeveloper.com/...l-map-exporter
This plug-in exports your AC3D model into NMF format, so that you can use ATI's NormalMapper utility to generate normal maps and ambient occlusion maps from your high-resolution model and apply them to a low-resolution mesh for use in video games. This lets your low poly models look like they are high poly.
If you don't know what normal maps are, you can read a really great tutorial here:
http://www.bencloward.com/resources_tutorials.shtml
You can download the NormalMapper utility from ATI here:
http://ati.amd.com/developer/tools.html