Chromatically controlled hallucinations

Some well-known visual illusions work via structures of colour contrasts and colour gradients. They are designed to view on a screen or as prints on white paper under white lighting. But, the light contrasts and gradients arriving at the eye are a combination of material reflectance and lighting spectra. So, varying the lighting spectra will vary the colour ingredients for the illusions. By careful combination this can induce hallucinatory dynamics in those illusions – which we demonstrate with movement, lightness, neon colour spreading, colour contrast and colour assimilation illusions – some of others and some self-generated.

Take notice: limited capacity and flashing lights.

Look at each illusion for a full colour sequence to see what happens