Best way to make foliage tree as last LOD

I make material always face camera but now I need picture my tree, How make printscreen left side my tree?

Render it in a 3d program with transparency.

If I edit in external program bilboard look different than tree(different light), Its possible to make bilboard inside engine?

Try using a screen capture 2d and saving the rendered image.

I know but how?

Hi, here it is described