The Alchemist of Light To look at a Jan van Eyck painting is to witness the moment Western art stopped pretending and started observing. We often hear the myth that he invented oil paint, but the truth is more grounded and far more impressive: he mastered it. By applying thin, translucent glazes of pigment over one another, he achieved a depth of color and a precision of texture that tempera simply could not sustain. He did not just paint surfaces; he captured how light interacts with them. When you see the gleam of a single candle or the heavy weight of a velvet robe in his work, you are se…