ANSI/ISO 9592-4-1992 信息处理系统.计算机制图.程序员分层交互制图系统(PHIGS). 第4部分:正发光(Plus Lumiere )和表面,PHIGS PLUS
Information Processing Systems - Computer Graphics - Programmer's Hierarchical Interactive Graphics System (PHIGS) - Part 4: Plus Lumiere and Surfaces, PHIGS PLUS
This document specifies a basic set of functionality for support for simulating the effects of lighting, shading, and other properties that are important for the display of multi-dimensional data, for use in conjunction with the functionality defined in Part 1 of BSR ISO 9592.