Uses flat maps (only 4 vertices per tree) instead of high-poly geometry, drastically lowering memory usage and speeding up render times.
The add-on does not merely import static images. It provides a parametric interface to modify: Alpha Trees Pro 2.3.3 for Blender Free Download
Alpha Trees Pro 2.3.3 for Blender can be downloaded for free from the following link: Uses flat maps (only 4 vertices per tree)
: Convert your own 3D tree models into lightweight alpha cards directly within the tool. Alpha Trees Pro vs. Lite Alpha Trees Pro 2.3.3 for Blender Free Download
A few important points to consider: