thanks for your thoughts they have been helpfull , but the project have changed a bit since i last posted this thread.

We are no longer working with flaps but propellers. So what i need to make the script do, is to analyze how fast the propellers are rotating and make the spheres glow acordingly.

I have been trying to figgure out what kind og command i need to use in order to capure the rotation speed and also how to specify the glow attr on the shader, but it is really confusing !


any help on this would be much appriciated :bow: