Rendering turtleSpaces Logo code in 3D space.
Myrtle the turtle draws whatever Logo code you tweet to her in 3D space, and then returns an image of the result. You can draw lines, but also create cubes, spheres, cones and many, many other shapes! Myrtle’s Logo is based on Apple (LSCI) Logo II, with the addition of hundreds of new primitives. A command reference and tutorials are available from turtlespaces.org.