For a simulation with positive confirmation that the photos are real, Nvidia used ray tracing to verify(1) the light came from a single source - the sun. Unfortunately, what I said above applies in the negative - if you think we went to the moon, this is further proof. If you think we didn't, well, a human made simulation could be made to show whatever you wanted so it's not definitive.
1. https://blogs.nvidia.com/blog/real-time-ray-tracing-apollo-1...