Yesterday I discovered a very expensive (>70€), expensive (GPU calculation; 5 lights) and imprecise (only plain generic colors) tool to do what I was searching for, so I decided to create my own custom Blueprint to illuminate any space from a screen. It consists of a plane (a TV, for example) with a texture (a playing video, for example), and a rect ligtht (stationary, with realistic baked shadows and super cheap) which will illuminate the scene with the colors and “shadows” comming from the content of the video played on the screen.
In advance, you can watch this quick video and screenshots:
Of course, it’s not perfect and light projections are not 100% correct, because of the “rays” calculation of rect lights (it’s the way they internally works), but anyway it brings a very convincing effect. In addition, you can control the blur of the projected lights and their brightness.
Please, feel free to comment. I will be really glad to know your opinion, specially if you can share what do you think about a target price and a better name
(“High precision” mode):
Thank you and best regards!