Use arrow keys to rotate the cube in any wanted direction. 

when rotating the object on the y-axis observe the change in texture. 

use 't' to toggle between wire frame and texture cubes. 

To see the effect of spot lights use the numbers 0,1,2,3. Each number is the number of a spot ligt. pressing 0 swithces a spot light. 1,2,3 are also in the same way.

use ' - ' (minus) to change the cube's position of vertex with mass.
and ' + ' (plus) to bring it back to normal. 

esc to exit