I only way the Collision could be off is that the Collision is either moved or you've generated collision and the Tree has moved in Speed Tree Modeler. When you click "Randomize all" under the Random Seeds Tab in SpeedTree Modeler it does move the Trees Coords in Speed Tree but not the Collision Box. I don't think that's…
hmm i don't know, but in the speetree editor your model is not on the 0,0 coordinate.Maybe the problem is with this.because the 0,0 is in the same distance from the tree, and where is your collision model in udk. but maybe I'm talking bullshit, i never used speedtree. Also collisions are not billboards.They are invisible…
Ok.... so your having problems with the Collision of the Tree? Or Collision of the Gun? because your images show you firing around the Tree but the gun doesn't leave a mark. I'll just run through a list and make sure you've done all these because I just tried the "Generate Collision Primitives" in SpeedTree and it works…