David Hockney’s Secret Knowledge
![A film directed by Randall Wright, about David Hockney's argument that many artists in history have used optical aids](https://res.cloudinary.com/squidge-inc/image/fetch/w_800,f_auto,q_auto/https://philipsteadman.com/uploads/DavidHockney'sSecretKnowledge.png)
The film has a sequence on the use of a camera obscura by Johannes Vermeer, including a computer animation by Steve Evans of Vermeer’s studio and the projection of an image onto its back wall, and a one-sixth scale physical model of the room. I discuss these with Hockney from 20:16 in the video.