qt.m

the file contain many matlab signal source code and many example .

subplot(221)
sphere(30)
shading flat
camlight left
camlight right
lighting flat
title('Flat Mode')
axis equal
axis off
subplot(222)
sphere(30)
shading flat
camlight left
camlight right
lighting gouraud
title('Gouraud Mode')
axis equal
axis off
subplot(223)
sphere(30)
shading flat
camlight left
camlight right
lighting phong
title('Phong Mode')
axis equal
axis off
subplot(224)
sphere(30)
shading flat
camlight left
camlight right 
lighting none
title('None Mode')
axis equal
axis off