It would have been nice to see even one example scene which would have demonstrated indirect lighting more clearly, something like this one (linked from the article) <a href="https://vimeo.com/214264003" rel="nofollow">https://vimeo.com/214264003</a> where you can nicely see the blue/red tint on the white floor.<p>edit: oh, apparently bounce lights are bit of a kludge here, from github readme:<p>> To bounce light, the previous frame is referenced and emissive surfaces from that frame are added to the current frame. This means every frame, light bounces to one additional surface.
Randomly, I think I may have been the first person to do (or at least write about) 2D GI. I taught a bunch of people about it (and rendering / path tracing in general), some of whom became a lot more popular.<p>Here's the oooold and very cringy article I wrote as a teen in the 90s, there are some old crap images in the gallery: <a href="https://web.archive.org/web/20031207162649fw_/http://www.cfxweb.net/~lyc/2dgi.html" rel="nofollow">https://web.archive.org/web/20031207162649fw_/http://www.cfx...</a>
Read the article on desktop, have to say that at least there it's really nice: good color scheme, readable text, good writing, nicely chosen images and code snippets (also Godot is always fun to encounter).<p>Makes me wish that more of my own articles could be so pleasant. It's unfortunate that the same experience doesn't seem to carry over to mobile devices, but oh well.