Well, as that's not always desirable behaviour, by default the Paint Area
isn't linked to the surface.
Anyway, it's easy to bind any Area(s) to the surface with the 3ds Max's Select and Link
function. Optionally, if wanted to not link the whole Forest object, you can use the Areas
- Convert to Spline
feature and Select and Link
just that newly created & assigned spline.
Just take in mind, you'll need to click on the Update surfaces data
button or mark the Auto
check-box (to Update surface data automatically
- this may add a performance hit for complex surfaces) to rebuild the Forest object.
Hope that helps.