Hmmm... so a global lighting setup with 37-odd lights* and a nice bright spot light for the sun might not throw a shadow if the sum of all those lights is too high? For areas with less pollution, thinner air, or a point light** source (such as Mars) we can fake harsher lighting by raising the size of the shadowmap... but what if we want diffuse lighting without jaggies (underwater shadows)? Carolly *I chose 37 because it was an odd number. **The sun is a disk from Earth and a point from Mars.