To use the attached m3a file you need to import in your map and save. Then go to the Model-Tab of the Data Editor and search for "Marine".
At the right select the imported file in the "Animations (Required)" field. That's all! Marines will now wave from time to time with their hands.
To make the m3a file I did the following:
I imported the marine model into Blender 2.62 with my m3addon
I deleted all animations except the stand animation (using the M3 Animations panel of the scene tab from the properties editor)
I deleted all middle keyframes for the 3 bones of the left marine arm
I went to a frame, posed the marine arm and created rotation key frames with "i"
I used box selection and copy and paste in the graph editor to clone a few poses to other frames.
I deleted all materials, meshes, and attachment points to make the exported model smaller. They don't get used anyway!
I exported the file as m3 file with the extension m3a
@zorbotron: Go
Thanks for the positive feedback! I created an video tutorial on how to make this animation with Blender:
http://www.sc2mapster.com/forums/resources/tutorials/36502-blender-how-to-create-an-animation-m3a-for-an-existing/
As a test for my m3addon I made a new Stand animation for the marine. It waves with his hand as shown in this video:
http://www.sc2mapster.com/media/attachments/27/6/NewMarineStandAnimation.ogv
To use the attached m3a file you need to import in your map and save. Then go to the Model-Tab of the Data Editor and search for "Marine". At the right select the imported file in the "Animations (Required)" field. That's all! Marines will now wave from time to time with their hands.
To make the m3a file I did the following: