The following program draws a picture using one of three shading methods: gouraud, phong, or a silhouette shader. The material can be changed and the light source may be moved. Controls for the program are as follows: 'q' : quit 'm' : choose next material 'M' : choose previous material 'l' : choose next light 'L' : choose previous light 'x' : increase light x coordinate 'X' : decrease light x coordinate 'y' : increase light y coordinate 'Y' : decrease light y coordinate 'z' : increase light z coordinate 'Z' : decrease light z coordinate '1' : select gouraud shader '2' : select phong shader '3' : select silhouette shader 's' : toggle spotlight 'a' : increase angle of spotlight 'A' : decrease angle of spotlight 't' : increase alpha of spotlight 'T' : decrease alpha of spotlight 'r' : reset all lights The project is built using CMake. Download all files into a project folder, say "project_dir", and designate that folder as the source directory. Then designate the build directory as "project_dir/build". The folder ExampleOutputs contains samples of what this program produces.