Glimmr Drawing Commands
version 2/101030 by Erik Temple
Chapter: Basic Commands ("Primitives")
This section lays out GDC's simpler commands, what in many systems would be thought of as primitives. In Glulx, only the rectangle, image, and scaled image commands are actually primitives. All of the others are derived from these--a line, for example, involves many rectangles, often only a single pixel in width. Higher-order commands may be noticeably slower than the true primitives. Notes about drawing speed are provided where appropriate.