Homeworld Effects Manual: setMeshStartFrame()
setMeshStartFrame(int frame)
Legal values: non-negative integers
Default value: 0
Determines the starting frame of a mesh animation.
This command should be used in conjunction with a setMeshAnimation() command. This command lets you start somewhere in the middle of a mesh animation. Since Homeworld is a computer program, it starts counting at zero, so setMeshStartFrame(0) starts with the first frame.