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。
{(;dHF%{ rMRM*`Q2 _GEt:=DAP# (B|4wR\ 是根据这篇
论文编的matlab代码。
r}kQ<SRx f P'qUN PwP;+R};| K;,zE6WD$$ 哪位大神指点一下
4q sIJJ[. clear;
z}I =: H=20;
htC~BK3( a=100;
?sfas57&y itheta=0;
7)&}riQ i=1;
"f^s*I for theta=0:0.0001:pi/2
o5=1 if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
lS"g[O+ itheta(i+1)=theta;
1>hY!nG h i=i+1;
n0|oV(0FE end
h|
q!Qsnj' end
6*yt^[W R=30;
GIXxOea1 r=0;
O ?`=<W/R for i=1:a
A+3, y<j\ r(i+1)=sqrt(R^2/a+r(i)^2);
ZlaU+Y(_[ end
*sNZ.Y:. I(:,1)=sin(itheta);
R@*mMWW, I(:,2)=cos(itheta);
0($@9k4!/ N=[0,1];
M "QT(u+ P=[0,5];
Vl=!^T}l+ O=[0,1];
mocR_3=Q? n=1.5896;
Wp2b*B=- for i=1:a;
tA#7Xr+ 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) );
,w>WuRN" P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
@9-/p^n1 O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
`qP <S
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
Xvy3D@o N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
c6 O1Z\M@\ end
IE/F =Wr P(:,3)=0;
SvR:tyF plot(P(:,1),P(:,2));
*Uq1q {NmpTb