If you are creating outdoor environments of any sort, then the DreamScape Sky is going to be critical to building believable looks. From Sunrises and sunsets, to alien environments and stormy skies are possible with this powerful set of routines.
The DreamScape Sky is a major component of DreamScape, and works in concert with just about all other modules that ship with the product including the Sun light type, the DreamScape Terra system as well as the DreamScape Sea Surface system.
Beyond just being able to create convincing vistas for your scenes, DreamScape's Sky contains a vast array of tools to illuminate Terra objects and other geometry within your scenes as well as allowing the clouds that the Sky system creates itself to cast shadows on the scene geometry. And the Sea Surface system can take advantage of the Sky color information for it's advanced reflection and refraction capabilities.
Creating a DreamScape Sky
DreamScape's Sky system exists within 3ds Max as an Atmospheric Effect, and can be accessed through the Rendering->Environment menu.
Users should then go to the Atmosphere rollout and click on the Add button. From the resulting Add Atmospheric Effect dialog, choose DreamScape.
Once you've selected DreamScape and clicked OK, the Sky parameters will appear below.
Note: Be aware that if you try to render your DreamScape Sky and you don't have at least one DreamScape Sun light in your scene, you will get the following error message informing you that you have to create a Sun light prior to being able to see the Sky.