Notice: camera looks from z axis to the object at (0,0,0) position. Instruction: 1.* upload an asteroid, format .obj or .wv; 2. set axes and angular velocities (degree/second), axes will be auto-normalized. Default precession velocity is 0; 3. set light direction and starting orientation. 4. click Try to check movement; 5. click Start to see build the light curve. If you want to compare, upload your own light curve from txt file (each line has to have '[x] [y]' format); 6. Have fun :)