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。
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论文编的matlab代码。
fnn/akGKI AR7]~+X
KNqs=:i ] F2{:RW 哪位大神指点一下
X5c)T}pyv clear;
yn.f?[G2 H=20;
7/6%92T/B a=100;
+%LR1+/%b itheta=0;
0-Vx!( i=1;
RV_+-m{] for theta=0:0.0001:pi/2
D'oy%
1Q} if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
Y]H,rO itheta(i+1)=theta;
]xN)>A2 i=i+1;
@JpkG%eK end
R9O1#s^ end
Mt%=z9OLq9 R=30;
{[[/*1r| r=0;
&v<Am%!N for i=1:a
p]J0A ^VV r(i+1)=sqrt(R^2/a+r(i)^2);
E<L6/rG end
#iP5@:!Wm~ I(:,1)=sin(itheta);
+X!QH/ 8 I(:,2)=cos(itheta);
6Wc'5t3 N=[0,1];
n@y*~sG] P=[0,5];
7aJ:kumDZ O=[0,1];
31~Rs?~f( n=1.5896;
0i/!nke. for i=1:a;
[K"&1h<> 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) );
l]z=0 P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
FlepM* O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
Jn)DZv8? O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
,_RPy2N N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
zOA2chy4 end
Qs;MEt 1 P(:,3)=0;
0p1~!X=I plot(P(:,1),P(:,2));
E*{_=pX L3y`*&e>