1991-2006 Silicon Graphics, Inc.

gluSphere

3G

gluSphere

draw a sphere

# C Specification

                    void gluSphere
                    GLUquadric* quad
                    GLdouble radius
                    GLint slices
                    GLint stacks

## Parameters

`quad`

- Specifies the quadrics object (created with

  gluNewQuadric

  ).

`radius`

- Specifies the radius of the sphere.

`slices`

- Specifies the number of subdivisions around the z axis (similar to lines of longitude).

`stacks`

- Specifies the number of subdivisions along the z axis (similar to lines of latitude).

## Description

`gluSphere` draws a sphere of the given radius centered around the origin. The sphere is subdivided around the z axis into slices and along the z axis into stacks (similar to lines of longitude and latitude).

If the orientation is set to `GLU_OUTSIDE` (with

gluQuadricOrientation

), then any normals generated point away from the center of the sphere. Otherwise, they point toward the center of the sphere.

If texturing is turned on (with

gluQuadricTexture

), then texture coordinates are generated so that t ranges from 0.0 at z = - radius to 1.0 at z = radius (t increases linearly along longitudinal lines), and s ranges from 0.0 at the +y axis, to 0.25 at the +x axis, to 0.5 at the \-y axis, to 0.75 at the \-x axis, and back to 1.0 at the +y axis.

## See Also

gluCylinder

,

gluDisk

,

gluNewQuadric

,

gluPartialDisk

,

gluQuadricOrientation

,

gluQuadricTexture

## 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/.