thanks for your reply.
Alright, that was helpful - but its really not good not to be able to preview the scattering in the viewport properly.. why this?
I'll attach the render.
Alongside this one - as it fits the thread title - I'll post another with some strange behavior of controling objects rotation by color / value.
Maybe I'm doing something wrong too...
Should result in some circular appearance, all objects facing center- right?
Another question (maybe better another thread?): how to achieve jagged edges in paint area distribution that the objects distribution gets more rough at the edges of an area?
Painting an area by lowering the brush size is a little tedious.
Converting to spline and adding a noise modifier was not really successful too (even with optimizespline mod).
Using a distribution map instead is an option but tedious too- like viewport canvas or a baked or on the fly rendered dirt texture map...
..the test scene is 2,5 mb..