Split rectangles into triangles?

[Víctor Paredes]

Hi, I have been using a lot of smart meshes for most of my characters and I normally prefer to create the triangles myself instead of using the "triangulate 2D mesh" option. The process is much longer, but gives me the chance to control exactly how I want the mesh to behave during the animation.
Now, most of the time while I'm creating this meshes, I create squares that then split into two triangles and paint each of them. Do you think there's a way to make that step quicker? I'm thinking about a script that automatically takes every for points connected, divide them into triangles and then paint them.
What do you think?
Thanks

[A.Evseeva]

Yes, I have a script, working such way:
make some filled shapes (any shape, not only square. But they have to be bulgy, without self-intersections) and run the script. It will split filled shapes (only filled) into triangles. The benefit is that none of existing edges will be deleted, while built-in command deletes them sometimes.

[Víctor Paredes]

Wow! this is fantastic!
Thank you very much, Alexandra! I will use this script for a project right now!

[hayasidist]

or you might consider my "shape" tool -- viewtopic.php?f=12&t=29621#p170024 -- that gives you a mesh from a click-drag rectangle.