Sunlight

EXTERNPROTO Sunlight [
   field SFBool autoClock
   field SFBool live
   field SFBool useDay
   field SFTime duration
   field SFInt32 hour
   field SFInt32 minute
   field SFInt32 second
   exposedField MFNode children
] "SunlightPROTO.wrl"

Sunlight changes the colors of a Background node and a directional light illuminating its children according to time of day.

autoClock	SFBool	TRUE	when TRUE, the rendering computer's internal clock is used to set time of day, and the hour, minute, and second fields are ignored

live	SFBool	TRUE	when TRUE, the colors of the sky and directional light, as well as the directional light's direction change over time. when FALSE, time is considered frozen, and the lighting / coloring will not change from their initial setting

useDay	SFBool	TRUE	when TRUE, the duration field is ignored, and color changes occur in real-time (24 hours to complete a cycle)

duration	SFTime	5	length of day / night cycle (in seconds). duration is ignored when useDay is TRUE

hour	SFInt32	12	hour of day, ignored if autoClock is TRUE

minute	SFInt32	0	minute of hour, ignored if autoClock is TRUE

second	SFInt32	0	second of minute, ignored if autoClock is TRUE

children	MFNode	[]	any children of the Sunlight node are lit by a directional light whose color and direction correspond to the time of day.