In the real world, you can't gamma correct light, so it seems a strange idea to do it in Poser.

Gamma correction is what you apply to the output of a light sensitive device (light being the input) to correct for its non-linear response. A non-linear response means, in a nutshell, that if you double the light intensity you won't double the strength of the signal produced by the device.

Gamma correction is also required for light-emitting devices, such as monitors, which also have a non-linear response. This time, the device does not (for example) emit twice the light if you double the input signal. The correction has to be applied to the input (the signal) because it can not be applied to the output (light).

In Poser, the light(s) in your scene are the input. The shaders applied to objects in the scene are the 'device' - what the light interacts with. The 'device' produces the signal for output - what you see on your monitor. So it only makes sense to gamma correct shaders for lit objects in the scene.

Anything you do to the lights can only affect their intensity or color, no matter how complex the math.

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Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)

PoserPro 11 - Units: Metres

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