Writing a Demoscene Intro for the ZX Spectrum

Mark Williams, a demoscener, wrote a demoscene intro for the ZX Spectrum, a retro computer. The intro, titled 'Glaze', is 4k, meaning it contains 4096 bytes of code. It features 3D graphics and music. The author used a combination of machine code and assembler to develop the intro, which was created using a C compiler. The music is generated in real-time by the computer. The intro is a showcase of the ZX Spectrum's capabilities.