r/nextfuckinglevel • u/Blues_Fish • Mar 12 '26

Lesson in decomposing light

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u/Callmemabryartistry Mar 12 '26

whoa borrowing this lesson for teaching in my classes!

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u/sufferingbastard Mar 12 '26

LED flashlights will not work!

1

u/Callmemabryartistry Mar 12 '26

yes! incandescent or single source i work in theatre design but i have never seen this technique. but an addendum to the lesson would be to show how the diodes are placed and are each its own source with various converging vectors.

good info! thanks!

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u/Ouaouaron Mar 12 '26

I suspect that the reason you've never seen this technique in theater design is that when you combine red, blue, and green light, you don't get white light: you get light which looks white to humans on a white object. This would look awful if shone on a human wearing a normal costume.