Quote Originally Posted by jfrazierjr View Post
My guess is he used an animated brush in the first place...ie a .gih brush with multiple brush images, similar to .gif
Ding! Ding!

That is correct. I was using a Gimp Image Hose made of a number of tree variations. All my gimp tree brushes are coloured image hoses, so they can be transparent with solid backgrounds. Even the B&W outline ones I make are full colour, with the outline (black) and the tree fill (white) so they will overlap without showing though.

-Rob A>