Sun

 Function Name  Parameter  Return  Explain
 getDirection None vec Get sun direction (from sun to ground)
 setDirection vec dir, dirNormalMap None Set sun direction

Parameters
dirNormalMap: sun dir for normal map. If your normal map use left-handed coordinate system (x-axis points left, y-axis points up, z-axis points out), this parameter can absent.
 getColor None color Get sun color
 setColor color None Set sun color
 getIntensity None number Get sun intensity
 setIntensity number None Set sun intensity
  Lib Function  Parameter  Return  Explain
 new  Material List  Sun