I have two questions - is it possible to exclude just certain scatter objects from a spline? i.e. i have long and short grass, can i draw a spline and exlcude the long grass from it? That's a simplified version of what I need to do - i have about 20 items scatters and want to exclude a few from one area.
Secondly, is it possible to to control where objects are scattered based on the shadows from a light source - for example, I'm making a winter scene, i have normal grass, and grass with frost on, I'd like to place the grass with frost on, only where the sun casts a shadow ...