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。
gh61H:t kR BS.=
3+zzi 4if\5 P:j 是根据这篇
论文编的matlab代码。
#ovM(Mld ;qb Dbg
Tzf$*Uje3 cNeiD@t3V& 哪位大神指点一下
l7~Pa0qD clear;
dk:xnX% H=20;
niAZ$w a=100;
Gw`/.0 itheta=0;
#/s7\2 i=1;
23k)X"5 for theta=0:0.0001:pi/2
Hh\
4MNl if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
Iht'e8)gq itheta(i+1)=theta;
K4Y'B
o4 i=i+1;
RUqO!s~#rY end
TH>,v end
6+?wnp- R=30;
Nuo^+z
E r=0;
i0b.AA for i=1:a
%rw}u"3T r(i+1)=sqrt(R^2/a+r(i)^2);
M6&~LI.We= end
/Bh> I(:,1)=sin(itheta);
yYM_lobn I(:,2)=cos(itheta);
m|lM.]2_ N=[0,1];
2+o! o P=[0,5];
"A]?M<R O=[0,1];
L,WkJe3 n=1.5896;
t@6w$5:} for i=1:a;
27Cz1[oX 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) );
x\6];SXX P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
)=y.^@UT@ O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
4Q@\h=r O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
iQu^|,tHEM N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
Bpm,mp4g\# end
:MK:TJV P(:,3)=0;
*B%y`cj| plot(P(:,1),P(:,2));
j{)fC]8H PBCb0[\