Dave Shreiner computer-graphics practitioner, author, and educator. He currently is a graphics engineer and manager at Unity Technologies and an adjunct professor of computer science at Sonoma State University. Over his 30+ year career, he’s contributed to the definition and development of multiple graphics APIs; co-authored numerous books on computer-graphics APIs, most notably the “OpenGL Programming Guide” and “Interactive Computer Graphics: A Top-Down Approach with WebGL”; presented over 40 courses, at SIGGRAPH and SIGGRAPH Asia conferences; and was conference chair for the 41st North American SIGGRAPH.