If I am not mistaken, we are already past that. The pixel, or token, gets probability-predicted in real time. The complete, shaded pixel, as you will, gets computed ‘at once’ instead of layers of simulation. That’s the LLM’s core mechanism.

If the mechanism allows for predicting how the next pixel will look like, which includes the lighting equation, then there is no need anymore for a light simulation.

Would also like to know how Genie works. Maybe some parts get indeed already simulated in a hybrid approach.