A small python script for maya that generates various tree shapes:
Installation:
- unzip it (I normally put my scripts to C:\Users\NAME\maya_scripts)
- open shelf_command.py and adjust the path accordingly
- copy the contents of shelf_command.py into maya's script editor, select it and middle-mouse drag it onto the shelf (which creates a new icon)
The script allows to choose between a cubic or cylindric base shape and various other parameters. There is even a section named "Modify" that can be used to alter the shape of an already built tree:
