SkyUpdate

Default UDK Sky

Sky After

These are all the maps used to make the sky material.

for information on how this was created check here 

UDK Composite

Bokeh Hexegon - Diff Alfa

   

Large Circle - Diff Alfa

Middle Circle - Diff Alfa

Small Circle - Diff Alfa

Star - Diff Alfa

Star Stretch - Diff Alfa

 

Rainbow Iris - Diff Alfa

Screen Space - Diff Alfa