No 3D API is complete without a directional light.
Directional lights are easier to deal with than point lights and hence are useful for learning 3D APIs. Point lights can be in objects, too close / too far away, whatever. Directional lights are less of an issue and offer some functionality (like simulating a sun) that point lights can't offer.
Directional lights are easier to deal with than point lights and hence are useful for learning 3D APIs. Point lights can be in objects, too close / too far away, whatever. Directional lights are less of an issue and offer some functionality (like simulating a sun) that point lights can't offer.