By now, the news about The Kraddy Demo: No Comply has circled its niche of the web, and people might be wondering about some of the methods used by our 3D engine, CubicVR.js, to achieve fast dynamic lighting and frustum culling. The demo is certainly broader and as much an achievement with respect to other facets of technology, like live audio streaming, Processing.js integration, and real-time shader effect manipulation. No Comply’s visibility system, though, I know quite well.