Color the world in real time

I tried a new approach which is looking better, more “progressive” more like painting:

screenShot01.png
screenShot02.png
screenShot03.png

I did this using post processing. my post process material looks like this (before tone mapping):

But my problem is still to make it permanent… It seems it’s impossible to write on a texture from the material itself (it’s completely fine it I just write in the VRam, make this colouration savable is not my priority now)