#つぶやきGLSL
#define f(p)min(length(fract(p)-.5)-.1*fract(p.z),p.y+1.)
void main(){vec3 s,l;for(int i=0;++i<21;){s.xy*=mat2(1,-1,1,1);s.z+=3.;s.zx*=mat2(cos(t+vec4(0,33,11,0)));l+=f(s);s=vec3((gl_FragCoord.xy*2.-r)/r.y,-1.)*l;}o.zyx=1./(s.z*s.z*.7-5.)*vec3(cos(f(s)*99.));}pic.twitter.com/ZwlTyGHJ2c
12:11 AM - 3 May 2020
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