Gday; I want to add a plane in front of my camera with a falling snow texture.

Is it possible to have the repeating texture moving along the Z and X so the snow appears to be moving when in fact its a image not an animated video as a texture?

If so is their a tutorial I've been up all night trying to work it out.

I know not of animating (scrolling) a texture across the surface of a plane.

But a possible quick-n-dirty fix...
Make an immense plane covered with the repeating texture, and animate the plane in front of the camera?
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Spacemice Wiki -- Input devices for a 3D world.
Spacemice / Blender Compatibility

I guess that would work However their is the looping problem.
I've made the plane huge and added a actuator so it moves downwards and it looks awesome, but after a while the illusion ends.