Sprite - Based Particle Trees
Sprite - Based Particle Tree's offer a much better looking tree in today's real time games. I would personally not normally recommend these types of trees' as 'overall' coverage in your real time game, but when used in conjunction with the normal cross-sectional type tree, can be used to great effect. These kinds of trees' are highly recommended to be used in area's of your game where you want most visual impact, on a corner of a track, lining a field nearby, etc.