Balloons in the sky

on 23 Oct 2021

R=@rand;

% Picked from Jenny Bosten

% create sky and clouds (need to run multiple times, as it is random)

X=-164:.646:164;

[t,r]=cart2pol(X,X'-90);

s=(285-r)/285;

image(cat(3,s*.3+.1,s*.5+.2,s*.3+.5),'AlphaData',5E4*abs(ifft2(r.^-1.7.*cos(6*R(508)))));

hold

Current plot held

% Make balloons at random positions

t=-pi:.05:pi;

r=25+10*sech(5*(pi/2-t));

x=r.*cos(t)+30;

y=r.*sin(t)+30;

C=400;

for i=1:30

patch(x+C*R(1),y+C*R(1),R(1,3),EdgeA=0);

end

axis off