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。
K iEmvC =P%&]5ts
j XH9Pq4 Af\ 是根据这篇
论文编的matlab代码。
Rx.v/H IJ~j(.W
xKl1DIN[ +TyN;e 哪位大神指点一下
KIcIYCBz clear;
BN `2UVH H=20;
;*$e8y2 a=100;
KIi:5Y itheta=0;
L$i:~6 i=1;
c6lCF & for theta=0:0.0001:pi/2
WQ}wQ:] if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
$4^SWT. itheta(i+1)=theta;
@gfW*PNjlP i=i+1;
*FktI\tS end
-|Zzs4bx end
lm
96:S R=30;
_-lE$
O r=0;
b*.aaOb for i=1:a
n0!2-Q5U)h r(i+1)=sqrt(R^2/a+r(i)^2);
3C<G8*4);/ end
i%JJ+9N I(:,1)=sin(itheta);
2Kf/I d1 I(:,2)=cos(itheta);
[@ev%x, N=[0,1];
P1Z"}Qw P=[0,5];
FuBt`H O=[0,1];
{x?qz~W n=1.5896;
:dh; @kp for i=1:a;
lOp.cU 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) );
I8YUq P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
SAdE9L =d O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
bD0l^?Hu! O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
-2; 6Pwmv N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
jLVG=rOn end
YR*gOTD P(:,3)=0;
y]0O"X-G plot(P(:,1),P(:,2));
s*[
I"iE }L)[>