Dirty Lens, Lens Flare, and Glare Example

This is a packed version of the .blend file I used to make the video at https://www.youtube.com/watch?v=2SkilL-055o

It's probably a little different because I can't stop tinkering.

HDRI light probe is by Greg Zaal over at hdrihaven.com (please support them!)

The dirty lens image is just something I found on an image search. It's subtle enough and part of a learning exercise that I figured it fell under fair use. If not, I'll swap it out. (That's one reason this is set at $0)

All the dirty work is in the compositor. Have fun.

Oh, the material on the shaderball is worth having a look at. It's an experiment gone awry.