Pete Shirley's Graphics Blog

  Working old software is underappreciated A decision all programmers have faced is whether or not to replace old working software.  There a...

  I got three Philips Hue bulbs and a Philips Hue Bridge (basically a hub you need to attach to your router) and tried various Python interf...

Part 1 of 3 Part 2 of 3    In the previous two posts I discussed why one might want direct lighting as a separate computation.  But what goe...

Part 1 of 3 Part 3 of 3   In my last post, I talked about using shadow rays to sample a light source directly.  Here is our old lovely but n...

Part 2 of 3 Part 3 of 3 In Ray Tracing in One Weekend , we took a very brute force and we hope intuitive approach that didn't use "...

 I am no expert on "uber shaders", but I am a fan.  These did not make much sense to me until recently.  First let's unpack th...

 In the writing of the new edition of Marschner's and my graphics text , we tried to add more "basics" on light and material i...