I’m trying to create an ocean scene at night lit by the moon. My idea is to create a movable point light with a very large attenuation radius. The problem is that I get rectangular artifacts on my test plane. If I make the light stationary the artifacts disappear, but in my case I need the moon to move.
Is there something generally wrong with my approach, or is there just a lighting setting that I need to tweak so that the artifacts disappear?
I think I need to use a movable point light because I want accurate specular reflections on the water surface, and the water surface should be lit dynamically by the moon. Is this the correct approach?
I don’t think a directional light will work for me, since I want to achieve an effect similar to these reference images: