gluDisk — draw a disk
Specifies the quadrics object (created with gluNewQuadric).
Specifies the inner radius of the disk (may be 0).
Specifies the outer radius of the disk.
Specifies the number of subdivisions around the z axis.
Specifies the number of concentric rings about the origin into which the disk is subdivided.
gluDisk renders a disk on the z = 0 plane. The disk has a radius of
outer and contains a concentric circular hole with a radius
inner is 0, then no hole is generated. The disk is
subdivided around the z axis into slices (like pizza slices) and also
about the z axis into rings
(as specified by
With respect to orientation, the +z side of the disk is considered to be
``outside'' (see gluQuadricOrientation).
This means that if the
orientation is set to
GLU_OUTSIDE, then any normals generated
point along the +z axis. Otherwise, they point along the \-z
If texturing has been turned on (with gluQuadricTexture), texture coordinates are generated linearly such that where , the value at (r, 0, 0) is (1, 0.5), at (0, r, 0) it is (0.5, 1), at (\-r, 0, 0) it is (0, 0.5), and at (0, \-r, 0) it is (0.5, 0).
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