Light Paint is a time-based, interactive installation that seeks to materialize light and colour in order to investigate their relationship with human perception. I propose that interactive light installations can offer robust sensory and cultural experiences. By considering affect theory to examine humans’ embodied relationship to light, Light Paint creates an immersive ecosystem where participant(s) engage with light, colour, and each other, in the course of a pre-determined durational experience. Light Paint employs Research-Creation and Iterative Prototyping methodologies to generate an affective environment where viewers can become active participants in an evolving perceptual experience.