Art car recent years the festival has been forced to limit the number of vehicles on the playa. As such they have restricted the vehicles that are licensed to what they are now calling "mutant vehicles". There has been some confusion within the Burning Man and Art Car communities over these two terms, with some believing the terms are simply synonyms. According to art car artist and Art Car Fest organizer Philo Northrup, art cars are "street-legal vehicles that have been permanently transformed into mobile sculptures". According to the Burning Man DMV ("Department of Mutant Vehicles"), Mutant Vehicles are "'art on wheels':
Anaglyph 3D image a pair of either color or monochrome images. This is called mosaicking or image stitching. In the 1970s filmmaker Stephen Gibson filmed direct anaglyph blaxploitation and adult movies. His "Deep Vision" system replaced the original camera lens with two color-filtered lenses focused on the same film frame. In the 1980s, Gibson patented his mechanism. Many computer graphics programs provide the basic tools (typically layering and adjustments to individual colour channels to filter colours) required to prepare anaglyphs from stereo pairs. In simple practice, the left eye image is filtered to remove blue & green. The right eye image is