Several days ago, I found an interesting software when I looked up the documents of Processing language. There is a introduction of 3D printing (http://www.michaelang.com/3d-printing-from-processing) titled: 3D Printing from Processing. Then I noticed the powerfull OGLE, a plugin of GLIntercept which is a 3D model capturing software, working like a screen capturer, but the target contents is the data mainted by OpenGL in graphics card. I did some experiment with OpenGL program and the result is exciting. OpenGL statement can be logged in a text file by GLIntercept, and an ".obj" file produced by OGLE consists the models from the frame specified by hot keys. Processing: (http://www.processing.org/) OGLE (http://ogle.eyebeamresearch.org/download) GLIntercept (http://glintercept.nutty.org/download.html)