David Lively's Blog | Coding, Graphics, Math and Other Misconcept...

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• David Lively's Blog | Coding, Graphics, Math and Other Misconceptions

  One of the coolest things that’s come along in recent years in my field is virtual reality. I’m lucky enough to have an Oculus Rift, touch controllers, and an HTC Vive sitting here in my office. If yo...

• Frustum calculation and culling, HOPEFULLY demystified. | David Lively's Blog

  Aspect ratio of the viewport. The frustum is defined by six planes – the top, bottom and sides of a 4-sided pyramid. The camera is located at the peak of the pyramid. (diagram coming at some point) On...

• 2020, So Far | David Lively's Blog

  So, here we are in 2020. A few things have changed since my last update in… 2018?? On COVID-19 & the novel coronavirus: what’s there to be said? It sucks. Most of us will get through this. Our preside...

• David Lively's Blog | Coding, Graphics, Math and Other Misconceptions

  Gwen(7) is an amazing, happy kid. People universally love her. Like, REALLY love her. (She remains stubbornly blonde and giggle-y, despite times being what they are.) Gwen is very-severely autistic. A...

• Row Major vs Column Major | David Lively's Blog

  must be consistent. See the next sections for details and caveats. Column-Major Values are stored in column-first order (see below) Transpose of row-major. The vertex or vector must to the RIGHT of th...

• OpenGL Matrices | David Lively's Blog

  By building and concatenating these types of matrices, we can create a single object (matrix) that performs all of these operations with a single (and fast on the GPU) matrix multiply. Looking at 16 a...