i don't seem to understand how directional light works.
i have earth(phongmaterial on it ok ) orbiting the sun (bitmap material with glow filter ok) , and the camera is on top, how do i get the correct lighting? if i use a directional light at sun position how do i rotate it, as the earth rotate, so i can get the real effect? i tried light.rotationY, or changing its position but no luck.
