Android GLUT does not have many functionalities, and sphere generation is the lacking one. I believe you'll have to generate the vertices and indices buffer manually.
What I have done with sky dome ( half a sphere ) is something like this. Unfortunately, my coworker did the maths, so I can only give you the idea:
Using java Syntax Highlighting
vertices = new float[NUM_VERTICES];
voffset = 0;
y = 0;
radius = 100.0f;
while( y < HEIGHT )
{
voffset += generateCircleVertices( vertices, voffset, y, radius );
radius -= 1.0f;
y += 1.0f;
}
indices = generateSkyDomeIndices();
int generateCircleVertices( float[] arr, int offset, float y, float r )
{
< use your maths to generate a number of vertices of a circle >
< the more vertices, the nicer the dome will look >
}
short[] generateSkyDomeIndices()
{
< lots of brain work here >
}
Parsed in 0.032 seconds, using
GeSHi 1.0.8.4
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