Hi
I try to be more specific.
There is a hill with animated foliage, on top of that hill there need to be some other stuff. I could use Z walue and 3D layers but what i have in mind is that this second object need to be placed AMONG the bushes and when camera is passing by it slowly reveals. I have Z channel within “hill” footage and i need the second object to be beetween certain Z values of the Hill’s Z channel so it can overlap and have rest of the hill’s Z values behind itself.
In other words: Z channel is based on a grayscale and let’s say i want something to be placed based on this grayscale…something like compound Z channell…i don’t know…this is tricky for me