Finished a pretty huge overhaul of my Renderer interface (thanks to a bunch of yall, in person and on Discord, for helping me learn some new graphics api territory).
The result of that work is that I have Render Passes in my engine, and can do stuff like this depth of field pass!
It's based on this blog post: https://blog.voxagon.se/2018/05/04/bokeh-depth-of-field-in-single-pass.html

(please ignore the crappy debug ui)