S
gluSphere
Chapter 17
402
gluSphere
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
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