A single Alpha Tree uses roughly 12–50 polygons (just the cross planes). The textures do the heavy lifting. With version 2.3.3, the developers fixed the shadow casting errors that plagued earlier alpha cards, meaning these "flat" trees now cast realistic shadows as if they were solid geometry.
Keep in mind, these are not version 2.3.3, but they fill a similar role. Alpha Trees Pro 2.3.3 for Blender Free Download
Alpha Trees Pro 2.3.3 for Blender: Render Massive Forests Fast Alpha Trees Pro is a high-performance Blender add-on A single Alpha Tree uses roughly 12–50 polygons
: Alpha Trees Pro uses flat planes consisting of only 4 vertices per tree. Keep in mind, these are not version 2
designed to render vast nature scenes and dense forests with minimal memory usage. By replacing heavy 3D geometry with specialized 2D PNG "tree cards" (billboards) that always face the camera, it allows you to populate scenes with millions of trees without the typical viewport lag. Key Features of Alpha Trees Pro 2.3.3
A single detailed 3D oak tree can contain 500,000+ triangles. Place 50 of those in a scene, and your GPU starts smoking.