There are may possible ways how to distribute bushes around houses and using Surface
/ Spline Areas
or its combinations with the Object Exclude Area(s)
usually does the job pretty well. Please feel free to post more about your specific case."... random rotation is only usefull when they are rotated 0 degree or 180 degrees ..."
For these purposes there are Probability Curves
, which lets you to define the probability of each random value in the rotation range.
Also let me mention, that's easily feasible in the new Forest Pack Pro 5.0.2 beta
using the brand new "Effects
" feature (it's similar to a scripting engine, it's based on mathematical expressions which are applied to the Forest items). In our on-line reference guide you can find an example of the Stepped Rotation
Hope you'll find it useful.