I am currently constructing a fantasy world, where the sun and moon revolve around the planet, which itself is stationary. Because of this, it is quite difficult to imagine how the climate zones would differ from our Earth (where would it be naturally colder and warmer in the geography). I am looking for a program (app, website, software, whatever) which would let me create 3D images and could have simulated light sources, that could help me determine how much sunlight would reach each continent, island, plot of land.