Blender is a free open source 3D content creation suite, available for all major operating systems under the GNU General Public License. You can download it for free with no limitations.
An updated import/export script is available at the blender-tools in our repository:
Export MD2 from Blender
There are some things you need to consider when exporting a model to MD2 from blender:
In Blender to export the model you need to
- The model must be unwrapped.
- If the center of your object (small violet circle) isn't located exactly in the absolute center (coord-grid center) you need to re-place it into the absolute center (unless you know what you are doing)
- Then you should be able to export it with the md2-export menu entry.
If you use one a scale where one blender unit equals one unit in the battlescape you need to scale up the model x16 before export. Don't forget to apply the transformation (Ctrl A).
You should configure Blender to use a grid setting of 6.4 (or multiples of this) - this will ensure, that the model will be aligned to the UFORadiant grid settings.
Rough basics: No matter how you animate the model. As long as you export is as a MD2 file you are limited by the specification of the model-type. Mainly the so-called key-framed animations of the MD2 format are of interest to us. Basically the format stores a list of vertices (with UV-data) and a list of animation frames. Each frame can have other positions of the vertices.
If you create a bone-based (or shape-key) animation of your model, export it to MD2 and import that in Blender again you'll loose all original information about bones and similar stuff .. they are transformed to key-frames on export. There still are animations there, but they are not as easily modified. This is also true for other modelling programs.
So never ever loose your original file if you don't want to re-create a lot of animation-work.
Note: Some already animated MD2 files (nearly every file created by Herby of the original dev-team) do not have existing source files (max files) any more ... it would be great if s/b would re-animate them in Blender so we can modify them more easily.
Create screenshots of models with UFOAI frame
Just open up the presentation.blend file located in models/presentation.blend and import/load  the wanted file. Make sure the model(s) is (are) nicely rotated and that the texture shows up in blender , press F12 to render and F3 to save the file.
-  Either File->Import an MD2 or File->Append from a .blend file.
-  There is a readme text inside the .blend file.