Making a Tree

#1 I have seen BSP based trees, and they look um.. primitive.
A tree is best modeled using a DTS, not a DIF.
But if you insist on using DIF for your tree, make it VERY big, and very simple.

#2 You could make the trunk a .dif and the leaves and branches out of a single transparent .dts cloned and scaled around the trunk. you'd get the collision boxes from the difs and don't worry about collision boxes for the leaves and branches.

#3 That's great information, but I think you are a ways above me. I am not sure what the difference is between a .dif and a .dts. I have only worked with constructor.
Jd

#4 Dts models are built with programs like milkshape (3dsmax, maya, etc.) and use uv maps for the texturing, giving you a higher level of control over more complex models like trees or characters. Also, you can really only animate the textures of a dif, but not the dif itself. Basically difs are considered interiors (although can be used "outside") and dts's are considered objects or character models. Anything pretty complex, using curves and multi textures should be a dts.

#5 The general rule is if you going to walk inside or on it, it should be dif. I found this on the site somewhere. I will look see if can find it again and put up the url.