OpenGL is a portable language for rendering three-dimensional (3-D) graphics. OpenGL does not understand Microsoft Windows device-independent bitmaps (DIBs); instead, it has its own format for representing images. It explains how to translate a Windows DIB into a format usable with OpenGL. Some knowledge of the Windows DIB format and the Microsoft Foundation Class Library (MFC) is expected. This version is the first release on CNET Download.com.