Monthly Archives: March 2013

Ray Tracer : in the weeds

I’ve spent the past week fighting minor math errors in my ray tracer. In order to confirm that my surface normals were being calculated correctly, I added boxes (axis aligned only at this point) as an additional primitive type. That … Continue reading

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PCB – The sun is the thing

I finally got back on the PCB fabrication horse. I printed out v1.1 of the 74HC595 LCD backpack, and v1.0 of the MCP23008 version. I chopped up the transparencies and mounted them up on Saturday, then worked on getting the … Continue reading

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