How to use alpha maps to render trees in LuxRender and Blender 3D

Since I wrote an article suggesting a collection of free textures of trees and shrubs, I have received a few messages asking me how to use those textures in LuxRender or YafaRay. Today I`m going to show how to use alpha maps in textures, to render cutout trees and people in LuxRender, which is a […]