DEC sold a system introduced 1967 called the DISPLAY-8 or type 338 programmed buffered display which was another PDP-8 which handled all the display processing and could draw 300,000 points, 600 inches of vectors, or 700 characters flicker free at the same time.
8-98 3D Draw for 338 Display
8-99B Kaleidoscope D 338 Display
Spacewar sources, handmade display: http://www.chdickman.com/pdp8/spacewar/
338 Brochure: bitsavers.trailing-edge.com/pdf/dec/graphics/338_Display_Brochure_1967.pdf
CC92 MPM Comm I/O file:///home/cac/Calibre%20Library/Unknown/CC92-01A%20MPM%20commIO%20Jul82%20(90)/CC92-01A%20MPM%20commIO%20Jul82%20-%20Unknown.pdf
XRAY thesis: www.mirrorservice.org/sites/www.bitsavers.org/pdf/mit/lcs/tr/MIT-LCS-TR-054.pdf
vector display code: /run/media/cac/less/cac/Projects/tempest/vecsim