Revert "Revert "Reenabled shadow mapping by default, since performance allows it""
Revert "Revert "Reenabled shadow mapping by default, since performance allows it""

This reverts commit 7a6dcb8cfdb3bb739bb8226ad0d88845c6058f28.

martensm/CSC5210_Final_Project,martensm/CSC5210_Final_Project