Terrain Rendering Based on GeoMipMapping Algorithm Using OpenGL.

A body mounted camera support system for isolating the camera from body motion includes two arms linked together. Each of the arms is a four bar linkage with two tension cartridges each extending between two adjacent ones of the links. Two of the links are extended to form the body of the arm. These links are tubular in cross section and receive the tension cartridge. A single pin, in association with a yoke at one open end of the tubular link, locks the cartridge in place. Each tension cartridge includes a draw bar and a canister with a compression spring operatively positioned therebetween. The spring is adjusted to include shims which bias the bowing of the spring under initial compression load. A PTFE coating on the canister and on the coil spring further reduces friction.