changed shadow_factor() to handle one-sided objects
tree3c8a23c141abb17557a1886f7ada1eac525ab696
-rw-r--r-- 37033 raytracer.erl
-rwxr-xr-x 86 run-concurrent.sh
-rwxr-xr-x 112 run-distributed.sh
-rwxr-xr-x 82 run.sh