Attached Link: http://www.renderosity.com/messages.ez?Form.ShowMessage=534772

There's an even better tutorial at the bottom of that one. I found it much easier than creating your alphas in an image editing program. You can do it all in Vue!

The trick is getting your tree lighting right so it doesn't look too washed out like in this pic. I haven't quite mastered the lighting yet, but it's still nice to be able to make alphas so quickly in Vue.

BTW, the grass is a free sample from Marlin Studios. They have a huge collection of trees and plants with alpha maps. Here's a link to the freebie page: http://www.marlinstudios.com/samples/sampvtf.htm