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John Calsbeek

I’m interested in physics, data-oriented design, parallelism, lock-free programming, SIMD programming, cache optimization, compilers, and procedural content generation.

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29 When is a compute shader more efficient than a pixel shader for image filtering? Aug 5 '15
29 What is the cost of changing state? Aug 5 '15
21 What is fwidth and how does it work? Aug 5 '15
20 Why integrate over a hemisphere (and not a sphere) to solve the rendering equation? Aug 21 '15
17 How can I generate procedural noise on a sphere? Aug 5 '15
17 Are lookup textures still used for anything? Aug 12 '15
15 When to disable perspective correct interpolation ( noperspective ) Aug 5 '15
11 What effects does path tracing capture that recursive ray tracing does not? May 18 '16
11 What is the performance tradeoff between forward and deferred rendering? Aug 9 '15
11 Volumetric rendering fundamental concepts and terminology Aug 9 '15
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