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。
@LZ'Qc
}@ OW!cydA- r6k0=6i =g|e-XC 是根据这篇
论文编的matlab代码。
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h [^sv. 哪位大神指点一下
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sk8c clear;
7 $AEh+f H=20;
itV@U a=100;
$=?1>zvF itheta=0;
P6q`i< i=1;
CFdR4vuEI for theta=0:0.0001:pi/2
G=?2{c}U if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
{v{qPYNyh itheta(i+1)=theta;
bV|(V> i=i+1;
]*b}^PQM^ end
,9jq
@_ end
?z,^QjQ} R=30;
@n<y[WA r=0;
Z+%Uwj for i=1:a
fNjxdG{a r(i+1)=sqrt(R^2/a+r(i)^2);
qIE e7;DO end
: V16bRpjL I(:,1)=sin(itheta);
5cLq6[uO I(:,2)=cos(itheta);
Y JzKE7%CO N=[0,1];
[>+}2-# P=[0,5];
m?LnO5Vs O=[0,1];
$v|/*1S n=1.5896;
L%4[,Rsw for i=1:a;
N$#518 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) );
%tx~CD P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
R1.No_`PHq O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
=R+z\`2 O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
d:KUJ
Y. N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
1e=<df end
wkSIQL P(:,3)=0;
zQY|=4NP plot(P(:,1),P(:,2));
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