During a Pebble Hackathon at the office, myself and Justin McGirr endeavored to create an OpenGL implementation for the Pebble Smartwatch. This would be a purely software based implementation, and use an awesome floating-point emulation library called math-sll. Its partially based off a miniGL library for PalmPilots, as well as some clever active-dithering to render colors to the Pebble’s Black-and-White EInk display.