SIMNET used Z-buffer displays developed by Delta Graphics. Delta Graphics was founded by Drew Johnston (SW development), Mike Cyrus (President), both from the Boeing Aerospace Company/Graphics Lab, and Jay Beck (CTO and VP), a 3D graphics consultant of Softtool Consulting. The graphics processor, the GDP, custom developed for SIMNET by Gary Wilson (Sr HW Engineer), won out over existing Silicon Graphics HW because of its low cost and because its architecture. It was the first simulator display processor to use a frame buffer and Z-buffer algorithms on a per display channel basis to show the simulated view.