a tree is -12 feet behind the 100 feet long 4 feet tall [fence] wall. the deer is 2 feet in front of the wall. He faces west. A bush is 0 feet west of him. A bush is 0 feet south of him. A bush is 0 feet east of him. the ground is [dirt]. the sun is sky blue. the sun's altitude is 68 degrees. the sun's azimuth is 215 degrees. the ambient light is blue.