RajaWali Interior Shape Rendering

gistfile1.java

getCurrentCamera().setPosition(0, 0, 0);
Sphere sphere = new Sphere(10, 24, 24);
/** Below renders a portion of the exterior of the sphere with texture applied */
sphere.setPosition(0, 0, -13);
/** Below renders nothing when I'd expect to "see" the interior of the sphere */
//sphere.setPosition(0, 0, 0);

Material material = new Material();
material.addTexture(new Texture("brc", R.drawable.brc_sm));
sphere.setMaterial(material);

getCurrentScene().addChild(sphere);

try sphere.setDoubleSided(true);