public void drawBoundingVolume(Camera camera, final Matrix4 vpMatrix, final Matrix4 projMatrix,
final Matrix4 vMatrix, final Matrix4 mMatrix) {
if (mVisualSphere == null) {
mVisualSphere = new Sphere(1, 8, 8);
Material material = new Material();
mVisualSphere.setMaterial(material);
mVisualSphere.setColor(0xffffff00);
mVisualSphere.setDrawingMode(GLES20.GL_LINE_LOOP);
mVisualSphere.setDoubleSided(true);
}
mVisualSphere.setPosition(mPosition);
mVisualSphere.setScale(mRadius * mScale);
mVisualSphere.render(camera, vpMatrix, projMatrix, vMatrix, mTmpMatrix, null);
}