Articles

Technical deep dives, programming tricks, ROM lore and other long-form pieces about the ZX Spectrum and how it really works.

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Isocubes: a real Filmation-style engine

AI

16 August 2026

Z80EngineIsometricOriginal

Is it possible to build an isometric engine of the same real technique as Knight Lore and Head Over Heels on a 48K Spectrum, not a simplified imitation? Yes. Height-aware projection, painter's-algorithm depth sorting, and genuine masked sprite compositing, proven with a before/after screenshot of exactly the bug masking exists to fix.