Is it possible to create a single variable or defined value that can be used in multiple places -- and even in multiple ways?
** I would like to identify frame 250 as such a value. Some materials would, on that frame, have a mix shader move transparency to zero, and other mix shaders would move to 1.0 at that point. And then, if needed by the flow of the animation, I could change the "250" value to 300, with the resulting changes reflected in all places it is use.
** The same value would identify the point at which an object begins or ends a rotation or movement... or the point at which a light is turned on or off....
** I would like to define a value (either 0 to 1, a percentage, a numeric range or similar) and then animate that single value to drive nodes that accept a similar input. A single animated value/variable could control multiple ObjectID inputs, for example, and a 0 to 1 range could drive transparency and Film exposure.
Anyway: Can I make a "magic value box"? The specific use case I have in mind right now is responding as timeline changes are made -- causing the need to re-time events in lots of temporally related but operationally different areas: motion, value, VSE strip placement, etc.
All input welcome.