By: Farwa Abdul Hannan (12 – CS – 13)

Prefix and Suffix of OpenGL

OpenGL Library: OpenGL is a software interface to graphics hardware. This interface consists of about 150

distinct commands that are used to specify the objects and operations needed to produce interactive

three dimensional applications. It also consists of different routines.

Prefix: A prefix is laced at the beginning of the word to modify or change its meaning. It also helps

to avoid naming conflicts if two independent groups implement a similar extension. The GLU and

GLX routines begin with the prefix GLU and GLX respectively.

Suffix: The Ending part of the word that modifies the meaning of the word, in OpenGL suffix

represents some datatypes along with their size.

Suffix Data Type C language type OpenGL Type

Definition

b 8-bit integer signed char GLbyte

s 16-bit integer Short GLshort

i 32-bit integer int or long GLint, GLsizei

f 32-bit float Float GLfloat, GLclampf

d 64-bit float Double GLdouble,GLclampd

ub 8-bit unsigned number unsigned char GLubyte,GLboolean

us 16-bit unsigned number unsigned short GLushort

ui 32-bit unsigned number unsigned int or

unsigned long

GLuint,Glenum,GLbitfield