Now I've made my sphere bumpy, somewhat like skin, but on a much larger scale.

Look what happened to the specular reflection. It exploded!

When a surface is bumpy, it creates many different areas that point in the right direction to send a specular reflection of the light source to the camera.

There is still only one light, but there are dozens of specular reflections of that light that we can see.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)