Combined Color Mixing
Pink light, yellow paint = red light
Cyan filter, white paint, mag light

Additive and subtractive can seem to be two different worlds but really two ways of looking at the same thing—different wavelengths reaching your eye. Some might come from a light course—example in room—some come from an object reflecting light (--example in room. )

One color light on white board.
Make white light (y and b)

Cyan board, b,y lights.
Yellow light, cyan board: cyan is absorbing non-cyan colors, namely red (b and g make cyan)
Yellow light is r + g mixed. When the red part is absorbed, result I green.

Filter is subtractive—filters out some wavelengths (everything but the color of the filter…)

Y light, white surface, no filter
Y light, white surface, M filter. =- red light (absorbs g let s r through)


You can play with this—point is that light emitting, reflection, absorption is taking place all at once in the real world.