Color Correction for Scene Node using RGB curves or LUT

cocos2d-x C++
1

I wonder if there is a way to implement color correction for a complete scene or layer.
Any suggestions where I could get some hints ?

2

Sorry for the bump, but this could be really useful.
I think it’s possible using shader but is far from my knowledge.

This guy makes some magic here: http://kpulv.com/359/Dev_Log__Color_Grading_Shader/

Could anyone with more knowledge than me take a look?
Thanks

3

that looks good. The main problem is where to use this shader?
I’d like to do it on the finished rendering. I need to render to texture for that but I’m wondering if there would be a good place apply this shader. Maybe the part where design resolution is mapped to device resolution?