Shader Forge - Real-time spherical area lights
Shader Forge is my node-based shader editor for Unity: http://www.polycount.com/forum/showth...
While working on SF, I was poking around with custom lighting. It turns out making spherical area lights is pretty straightforward! I'll look into rectangular ones in a bit, I should really go to bed at the moment.
It's a very cheap area light effect, which runs 100% on a shader level, all created in Shader Forge :)