February 19, 2011, 08:35:11 pm
Not sure I understand your 1st point.
The tricky issue with the terrain materials is that most react differently to the brush. Soms are much more sensitive and thus better suited for blending then others. Experiment with a bunch, you'll see what I mean.
All however are supporting transparancy and most can be blended any style you prefer.
Custom brushes with falloff are on the wishlist already.
And yes, lock everything (Remember to place all your geometry on a seperate layer so you can select all foliage more easily), then make your landscape. It's better to 1st make your landscape, then populate it with foliage of course but I understand this is not always possible.