For my first version of this tree I had used particles for the leaves, after testing the model in the Unity engine it turned out that the tree’s leaves exploded outwards. To fix this problem I decided to use polygons rather than particles and sprites. I manually created a series of planes and applied the leave texture to them. After some positioning and scaling trial and errors I had a tree again. I also created a bump and spec map for the leaves giving them some extra depth.
