Despite inventing technologies that are now foundational to computer science and gaming, and all the countless billions of dollars that they must have helped generate, he didn’t patent shaders or Perlin noise. “No, and it’s a good thing I didn’t,” he says. “I totally gave it away. I copyrighted it so people wouldn’t make wrong versions of it, but I didn’t charge for it.” It’s not that he’s against patenting, and part of the reason was the technology’s legal relationship with his then-employer, MAGI. “I don’t think in terms of making money, I think in terms of how my children thrive, and it’s a different rule for each thing.” If it was hardware technology, then patenting would’ve helped to secure the capital needed to realise it, but as pure software it would flourish by simply being given freely to the world.