Pator and I released two anaglyph (stereo 3D) prods for the Speccy at last week's @xenium . There were ZX anaglyph games, but no demos AFAICT, so these are perhaps first.
Each eye is drawn into its own screen (128K Spectrum is required) in all red or all blue. The screens are alternating at 50Hz. If you only see red, make sure you set good quality, as YT compression does not like that at all!
The music is magnificent (Pator rulez!)
https://youtu.be/d4Fo-Gv2XRA?si=IAXMNg5zAzNAXS_i




