Thanks to Slashdot for the pointer to this article of a new technique for rendering images in real-time: ‘Ancient artists used a technique called stippling � in which pictures are created by painting or carving a series of tiny dots � to produce drawings on cave walls and utensils thousands of years ago.

Now engineers at Purdue University have created a new kind of computer-imaging software that uses stippling to quickly produce complex pictures of internal organs and other renderings. The method is 10 times faster than some conventional methods and could provide a tool for medical professionals to quickly preview images in real time as a patient is being examined with imaging technologies such as CT scans and magnetic resonance imaging (MRI)…