> If you really want to simulate reflected light you also have to be able to control the angle of the light that you emit Uniform emission is fine because pape

> If you really want to simulate reflected light you also have to be able to control the angle of the light that you emit Uniform emission is fine because paper has close to Lambertian reflectance. "The apparent brightness of a Lambertian surface to an observer is the same regardless of the observer's angle of view." [0] > and you want to absorb incoming light almost completely otherwise there'll be a conflict (glare, in particular). Or make sure that the display itself has close to Lambertian reflectance and take into account its color in the emission calculations. [0]: https://en.wikipedia.org/wiki/Lambertian_reflectance https://en.wikipedia.org/wiki/Lambertian_reflectance