light tools模拟时都是中心暗,周围有亮圆环。
模拟光源为朗伯点光源。
``MO5${ ~_ THvx1
B#K gU&Loo aLk3Yg@X 是根据这篇
论文编的matlab代码。
m+QS -woHn c_/BS n
]RVu[k8 ,=/9Ld2w9 哪位大神指点一下
_O`prX.:B0 clear;
<)qa{,GX\ H=20;
kmQ:wf: a=100;
`<XS5h
h= itheta=0;
HqGI. i=1;
l*CulVX for theta=0:0.0001:pi/2
OC! {8MR if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
6pt,]FlU itheta(i+1)=theta;
vYgJu-Sl i=i+1;
B'Yx/c&n end
>AEp\* end
K\xz|Gq R=30;
:~-: r=0;
/b+~BvTh for i=1:a
xP8/1wd. r(i+1)=sqrt(R^2/a+r(i)^2);
t]xz7VQ end
b(Y
I(:,1)=sin(itheta);
z#{Y>.b I(:,2)=cos(itheta);
dXyMRGRUq N=[0,1];
c <TEA P=[0,5];
SKG
U)Rn; O=[0,1];
5ibr1zs n=1.5896;
>+O0W)g{o for i=1:a;
~WrpJjI[ P(i+1,1)=( N(i,1)*P(i,1) + N(i,2)*P(i,2) ) / ( N(i,1) + N(i,2)*I(i+1,2)/I(i+1,1) );
oodA&0{)d P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
ko%mZ0Y O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
01(U)F\ O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
7F`\Gz_2 N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
_Sjj|j end
2dts}G P(:,3)=0;
Q%CrB>|@ plot(P(:,1),P(:,2));
| W@ ~mrO *q}yfa35eR