Name

glVertex — specify a vertex

C Specification

void glVertex2s(GLshort x,
 GLshort y);
 
void glVertex2i(GLint x,
 GLint y);
 
void glVertex2f(GLfloat x,
 GLfloat y);
 
void glVertex2d(GLdouble x,
 GLdouble y);
 
void glVertex3s(GLshort x,
 GLshort y,
 GLshort z);
 
void glVertex3i(GLint x,
 GLint y,
 GLint z);
 
void glVertex3f(GLfloat x,
 GLfloat y,
 GLfloat z);
 
void glVertex3d(GLdouble x,
 GLdouble y,
 GLdouble z);
 
void glVertex4s(GLshort x,
 GLshort y,
 GLshort z,
 GLshort w);
 
void glVertex4i(GLint x,
 GLint y,
 GLint z,
 GLint w);
 
void glVertex4f(GLfloat x,
 GLfloat y,
 GLfloat z,
 GLfloat w);
 
void glVertex4d(GLdouble x,
 GLdouble y,
 GLdouble z,
 GLdouble w);
 

Parameters

x, y, z, w

Specify x, y, z, and w coordinates of a vertex. Not all parameters are present in all forms of the command.

C Specification

void glVertex2sv(const GLshort * v);
 
void glVertex2iv(const GLint * v);
 
void glVertex2fv(const GLfloat * v);
 
void glVertex2dv(const GLdouble * v);
 
void glVertex3sv(const GLshort * v);
 
void glVertex3iv(const GLint * v);
 
void glVertex3fv(const GLfloat * v);
 
void glVertex3dv(const GLdouble * v);
 
void glVertex4sv(const GLshort * v);
 
void glVertex4iv(const GLint * v);
 
void glVertex4fv(const GLfloat * v);
 
void glVertex4dv(const GLdouble * v);
 

Parameters

v

Specifies a pointer to an array of two, three, or four elements. The elements of a two-element array are x and y; of a three-element array, x, y, and z; and of a four-element array, x, y, z, and w.

Description

glVertex commands are used within glBegin/glEnd pairs to specify point, line, and polygon vertices. The current color, normal, texture coordinates, and fog coordinate are associated with the vertex when glVertex is called.

When only x and y are specified, z defaults to 0 and w defaults to 1. When x, y, and z are specified, w defaults to 1.

Notes

Invoking glVertex outside of a glBegin/glEnd pair results in undefined behavior.

See Also

glBegin, glCallList, glColor, glEdgeFlag, glEvalCoord, glFogCoord, glIndex, glMaterial, glMultiTexCoord, glNormal, glRect, glTexCoord, glVertexPointer

Copyright

Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.