This is driving me crazy… im doing a traffic light and in order to set it, I created a null arrow so the arrow will point to the light I need on (red, yellow or green). After some trouble with ICE (im novice at it), I used a box null, so the light bulb geometry will test if the null touches him, and if its true, the light bulb geometry material incandescence will be on. Everything has worked right, but I cannot find the way to also set a point light to change its color as the same time the material on the geometry is changing.
I finally tried to set it on the parameter connection editor, I used my null arrow as a driving force and the point light as the driven. As I moved up the arrow the light will turn red, and as I moved down the arrow the light will turn green… but… the problem is, everytime I reload the scene, the parameter connection editor resets and I lose my connections.
What am I doing wrong? An most important, how can I turn on/off a point light using ice?