Is there a program that can change monitor color temperature for lighting? I'm shooting a scene for a film where the actor will be placed in front of a computer monitor. I want to use the monitor to light the actor, but I want to be able to adjust the color temperature to get the look I want. I have F.lux (https://justgetflux.com/), so I know changing monitor color temperature is possible, but I want to be able to control it. Preferably the program would be free, and I would be able to adjust the temperature in real time.
Here is a hack. You can use Blender and the Blackbody Node of Cycles Render Engine. Following example shows a realtime viewport animation of the color temperature in kelvin:




Create some geometry (e.g. a plane) as light emitter
Setup an Emission shader
Create a Blackbody node and plug it into the Emission Color
Position your camera
Switch your Camera by pressing Numpad 0
Set the Viewport Shading to Rendered or press F12 to render the image




blend file



Renderings



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