I have a tree model with a tga file which has an alpha channel so that the leaves on the tree can be displayed properly. In my level I have a large terrain with this tree model all over it, but, it seems, that when I get close to the center of the terrain, the trees get clipped away as if the were behind the terrain and you can only see the parts of the trees that stand out above the terrain. How can this be fixed? I've tried using the d3d_entsort=2 setting, but theres no difference.

I've noticed that in Oblivion when editing the textures for the models you have to have a normal map file for each texture which helps to get the models to display correctly. Without it the same thing happens as I am experiencing above. Is it possible to do the same thing in 3dgs? If so, can someone help me get a shader or whatever is needed for it?