ex2507.m

数字信号处理的MATLAB实现

%例25-7 光源对象
%Ex25-7 Light Object
clear
clc
[x,y]=meshgrid(-1:0.1:1);
z=sin(x*pi)+cos(y*pi);
subplot(2,2,1)
surf(x,y,z)
title('no light')
subplot(2,2,2)
surf(x,y,z)
light('Color','r','Style','infinite','Position',[0 1 2])
title('red infinite light')
subplot(2,2,3)
surf(x,y,z)
light('Color','g','Style','infinite','Position',[0 1 2])
title('green infinite light')
subplot(2,2,4)
surf(x,y,z)
light('Color','r','Style','local','Position',[0 1 2])
title('red local light')