R= control ambient occlusion of the model during night, most (except for night lights) will have it topped to 255 so it gets very dark at night

G= Artificial light, topping this to 255 will give a self emissive power to the object. Used for objects near to lamposts or light sources to simulate ambiental lightning

B= Moonlight illumination, how much the object reflects of the moonlight. Rockstar uses this at very frequent situations to avoid a fully dark atmosphere




Painting leaves using shaders for tree or with _um param. (these shaders will make object move on wind):
RED - every part painted on red will move on wind
GREEN - every part painted on green will not move on wind