Thanks for your answers,
At the moment I would be happy to just get a simple line or circle drawn with the laser and xy coordinates from Unity. Then I could more easily make it complicated with shaders and such. @JohnYayas is this the c# library you where thinking:
https://github.com/tebjan/VVVV.LaserDAC I cant find any other c# library for the Ether?
I am a little worried that my lack of c# knowledge could result in me ruining my laser. I will give it a try but I am not sure I understand the code completely to implement it.
Also, I found this:
https://github.com/Blagodetelev/RayComposer using RayComposer so maybe I can try to mash the ether code and this together to get it to work with the Ether-Dream?
@masterpj I also tried to contact the developer of the star wars unity laser game with no reply. Even offered to buy his asset. It is a shame he wont share.
Cheers.