For this tutorial we'll export the English oak tree and render it in 3D studio Max. Open Xfrog and load up the English oak and then export it as a Wavefront.obj and fire up Max. If you don't already have them you'll need the free OBJ plugins from Habware to import the file go to "File Import" and change the "files of type" box to read Wavefront Object (*.OBJ) then open your tree. Next, this window will open:



Set yours up exactly the same to get the tree imported correctly then hit OK. You will then get a statistics window opening. Click OK on it too your tree will appear.




Now we can start texturing the tree. In the tools menu, open the Material editor and the Material/Map browser. In the latter, click the scene dot and you'll see TreeShader. This is Xfrogs default material, which we won't use, we'll just add our own. So go edit/ select by name and choose the first item named copy as this is the leaves. If you are ever not sure which is which, either check back at the model in Xfrog or select each in turn to be sure.



Now, back in the Material editor click on the first sphere and go down to maps. Put a check in the diffuse box, then hit the button labeled "none" and a new Material/Map browser will open and be full of textures. Hit the "new" dot and then double click on Bitmap to open a standard window. We need the file named oak leaf 2.png, so open that then go back and load the same file in the Opacity channel. We need to tell Max this is an alpha channel and to remove the color surrounding the leaf so put a dot in the Alpha section of the Mono Channel Output as in the image below.



Now if you still have the leaves selected click on the Assign material to selection button. The next step is to select the other three parts of the tree and using the next material sphere and load the bark09_r.png texture onto them and your tree is fully textured and ready for a scene, here is a render of the English oak.




Important note: The author is not a natural English speaker and there is a high chance of mistakes in every way. Corrections and comments are welcome.