a 1st large [winter] wall. a 2nd large [summer] wall faces right. it is -5 foot left of and -5 foot in front of the wall. sun's azimuth is 100 degrees. a 1st big white wolf is in front of and -90 feet above the 1st wall. a 2nd big wolf faces right. it is right of and -90 feet above the 2nd wall. shadow plane is invisible.