Generating a 3D CAPTCHA [pic]

Question

I would like to write a Python script that would generate a 3D CAPTCHA like this one:

Which

Answer 1

Use Python bindings for OpenGL, http://pyopengl.sourceforge.net/.

Create a 2D image of white color text over a black surface using PIL. Make a 3D grid from this, increase z of point where color is white, maybe set z=color value, so by blurring the image you can get real curves in the z direction.

Create an OpenGL triangle from these points, use wireframe mode while rendering.

Grab the OpenGL buffer into an image, for example, http://python-opengl-examples.blogspot.com/2009/04/render-to-texture.html.