- specify a vertex
C SPECIFICATION
PARAMETERS
_param1, _param2, _param3, _param4
Specify x, y, z, and w
coordinates of a vertex.
Not all parameters are
present in all forms of
the command.
C SPECIFICATION
PARAMETERS
_param1
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, and texture coordinates 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,
glIndex, glMaterial,
glNormal, glRect, glTexCoord, glVertexPointer
1