This is amusing to me, because when I was at Pixar, many of the shader writers and lighting TDs wanted an internal office, where they could control exactly the

This is amusing to me, because when I was at Pixar, many of the shader writers and lighting TDs wanted an internal office, where they could control exactly the amount and type of light in their workspace. Many had nearly pitch black offices, so they could better see subtle differences in changes to their lighting and shading code.