Rigging simple cartoon eyes??


Hi all,
I have a very simple cartoon character with eyes that are just 2 spheres sat atop his head. My idea for rigging these eyes up is to somehow link the scale value for each eye to a texture changing (one texture for open eyes and one for closed eyes). So when animating i can select one of his eyes and scale it in the Y axis a small amount and once it passes a certain value the textures get swapped if that makes sense? I’ve tried to set this up in 3ds max 7 using the wire parameters dialog but can’t get it to work. Does anyone know if my idea is possible or any other suggestions as to how this is achievable?
Thanks all.


ignore this guys, i worked it out in the end sort of, lol


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