With Physical Sky, you can simulate the relative position and behavior of the sun in the sky.
Start by using real world longitude and latitude data. Shade includes many real world locations, making it fast and easy to place the sun in the sky exactly where it should be at any time - click a button to make the time right now. You can also easily save (and share) your custom real world coordinates too.
Notice the direction of the light and how easiy it is to add clouds to the sky
Bring days and nights to life with an animated sun. Set an end time as easily as picking a day and time, and Shade automatically generates the animation of the sun effect as it moves from horizon to horizon. The effect also captures some atmospheric conditions at specific times, such as the green flash at twilight.