How to switch all lights on/off at once in Cycles?

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How to switch all lights on/off at once in Cycles?



In cycles, lights intensity can be modulated by varying their Color values.



enter image description here



Is there a way to do this for multiple lights at once without using individual keyframes (keying a single object is ok). My need is only to have two states (black, white) if this is more simple to obtain.




1 Answer
1



You could just use instances. (Copying with Alt + D)
Or, after the fact, assign the same Data Block to every light here:



lights



Alternative with Drivers:



Add a driver like this to the Strength of every lamp. That way you can maintain more control over individual lamps.



driver



This uses the zLocation of an Empty and multiplies it with the Strength. You would simply use the same Empty for all Lamps. That way you can control them all at once.






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