Hey guys. Remember this?

http://madebyevan.com/webgl-path-tracing/

Yeah, well now there's this:

http://jonathan-olson.com/tesserace/tests/3d.html

Firstly, it looks a bit less like a computer simulation and more like 
the Real World. Only a bit, but hey.

My favourite feature is that you can adjust the lens aperture and focus 
distance. I was just wondering whether you could accurately simulate 
depth of field using path tracing! Now we just need to be able to change 
the focal length of the lens too... (There are also options for 
adjusting the exposure.)

For a camera nerd, this is quite fun! (Well, it beats Nikon's "lens 
simulator", which just shows a static JPEG with variable magnification!)

Sometimes I really wish I knew how to do this stuff for myself...

What *would* be interesting is to see how this handles a scene of 
non-trivial complexity. I'm going to say "like a glacier"...

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