gluTessVertex function

The gluTessVertex function specifies a vertex on a polygon.

Syntax

void WINAPI gluTessVertex(
   GLUtesselator *tess,
   GLdouble      coords[3],
   void          *data
);

Parameters

tess

The tessellation object (created with gluNewTess).

coords

The ___location of the vertex.

data

An pointer passed back to the program with the vertex callback (as specified by gluTessCallback).

Return value

This function does not return a value.

Remarks

The gluTessVertex function describes a vertex on a polygon that the user is defining. Successive gluTessVertex calls describe a closed contour. For example, to describe a quadrilateral, call gluTessVertex four times. You can only call gluTessVertex between gluTessBeginContour and gluTessEndContour.

The data parameter normally points to a structure containing the vertex ___location, as well as other per-vertex attributes such as color and normal. This pointer is passed back to the program through the GLU_VERTEX callback after tessellation (see gluTessCallback).

Requirements

See also

gluNewTess

gluTessBeginContour

gluTessBeginPolygon

gluTessCallback

gluTessEndContour

gluTessNormal

gluTessProperty