Persistence of Vision Raytracer apparently takes a day to learn. A high-quality, totally free tool for creating stunning three-dimensional graphics — Predrag Cvitanovic 2009-01-28 05:01

Google SketchUp is used in my architect friend's drafting office to train students. Takes a day, and then they are able to do 3D sketches. — Predrag Cvitanovic 2009-01-28 05:09

probably nobody has time to sink into this, but what he who once was my gifted 13 year old neighbor nerd is now (after having dropped out of first physics, then Arabic) CEO of unity 3 dimensional start up. They are to 3 dimensional graphics what flash is to 2-dimensional videos. For old times sake he would let me have a license, for us to screw around 3d, mouse controllable explorations of flows and states space projections running in a web browser. Programming can be done only on Apple, browser plug-in runs only on windows and mac browsers. — Predrag Cvitanovic 2009-01-20 05:39

~~DISCUSSION~~