koobas.hobune.stream
make all grayscale but some colors
Hi everyone,
I have a question.. If it's possible to make something like having the whole scene grayscale, but keep some colors.
Not like red or green or blue only.. but something like yellow and brown, for example.
Is that possible? How would be the best way to achieve this.
I was thinking about having multiple layers and making some of them enabled programmatically, but I am not sure if it's possible and if it would be the best solution.
Any ideas?
Keeping R,G,B is trivial using the built-in color curves image effect. http://docs.unity3d.com/Manual/script-ColorCorrectionCurves.html
Keeping "yellow" or "brown" is harder, because:
The definition of these colours is somewhat arbitrary, and
It depends on testing the value of more than one channel
There's a couple of different approaches you could take, but the simplest is probably to make a custom LUT applies to the color correction effect: http://docs.unity3d.com/Manual/script-ColorCorrectionLookup.html
Yeah.. I know the complications for that.. I guess I am thinking the wrong way.. probably the approach should be something else.. otherwise is going to be a long process to build it and it might affect some performance..
thanks for your response.
