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。
+#|):aF B,Gt6cUq
dU4G! ZX
Sl+k. 是根据这篇
论文编的matlab代码。
#ErIot OSsxO(;g
.;'3Roi 3n=`SLj/a 哪位大神指点一下
d*A(L5;@ clear;
=b* Is,R/ H=20;
ydyGPZt a=100;
uDZ$'a itheta=0;
+.RC{o, i=1;
1`X-
O> for theta=0:0.0001:pi/2
SB3=5"q if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
tKik)ei itheta(i+1)=theta;
C;3>q*Am4 i=i+1;
MGmUgc end
ca!=D $ end
=`l).GnN2` R=30;
27NhYDo r=0;
$YM6}D@ for i=1:a
EpO5_T_ r(i+1)=sqrt(R^2/a+r(i)^2);
JrkjfoN end
!w[io; I(:,1)=sin(itheta);
{Va"o~io I(:,2)=cos(itheta);
T|c9Swur N=[0,1];
u*<G20~A P=[0,5];
f#W5Nu'*! O=[0,1];
~
}<!ON; n=1.5896;
&!kr&g#] for i=1:a;
| Ts0h?"a 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) );
N1LZ XXY{ P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
"^~>aVuXf O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
z>f>B6 O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
ET&Q}UO E N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
Wy'H4Rg8 end
INyakAmJ}- P(:,3)=0;
y'9
bs plot(P(:,1),P(:,2));
]/p)XHKo G(puC4 "&