Lighting engine

I put together a lighting engine this week.  It took a lot of coding before I could really test anything.

My first test effort I just rendered things as boxes to ensure that I even had the correct data.

Next I did some ray casting so I could see if I got that working.

Lastly I rendered those rays using a triangle fan.

I found that the CPU was being maxed out pretty bad, it turns out my first step (showing the boxes) was using the most. So I turned those off and things ran at a nice clip.



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