Name
quad:Sphere -- draw a sphere
Synopsis
quad:Sphere(radius, slices, stacks)
Function
quad:Sphere() 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 quad:Orientation()), 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 quad:Texture()), 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.

Please consult an OpenGL reference manual for more information.

Inputs
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)
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