public static void PitchAndYawToDirection( 
   float pitch,
   float yaw,
   out Vector3 direction
)

Parameters

pitch

yaw

direction

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Math3D Class
Math3D Members