# define つぶやきprocessing dailycodingchallenge


float i,g,e,s,l;vec3 p,q;for(i=0.;++i<50.;){vec3 p=g*normalize(vec3((FC.xy-.5*r)/r.y,1))+vec3(1,3,t*1.);q=p;s=1.;for(int j=0;j++<4;)p=mod(p-1.,2.)-1.,l=2./dot(p,p),p*=l,s*=l;g+=e=length(p.xy)/s;if(e<.003)break;}o.xyz+=cos(q*.3)*9./i;
https://t.co/LT2YO00IIA

90 306
2020-08-06

https://t.co/qhkBi3OeyS
b(p)length(mod(p,.8)-.4)
R(r)mat2(cos(r+vec4(0,11,33,0)))
void main(){vec3 s,l;for(int i=0;i<21;++i){s.yx*=R(t/4.);s=cos(s)-.2,s.yx*=R(1.);l+=b(s.zy);s+=vec3((gl_FragCoord.xy*2.-r)/r.y,-1)*l;}o.xyz+=.1/exp(s.z)*.1/cos(s/l)/l;}

4 12
2020-05-04


g gl_FragCoord.xy/r
void main(){float l,m,s,k;vec3 p,q;p.xz-=t;for(int i=0;i<99;i++){m=l;s=1.;q=p+s;for(int j=0;j<6;j++){q=fract(q*.5+.5)*2.-1.;k=1.6/sqrt(dot(q,q));q*=k;s*=k;}l=abs(q.y)/s;p+=(vec3((g-.5),1))*l;if(i>96)p-=.1;}o=vec4((vec3(g,.6))*l*12.,1);}

2 6
2020-04-19

18日目、(文字数が)つらい！
size(720,720,P2D);f=open("a","w");f.write("#define f(a)cos(a.zyy+sin(a*a.zxy))\nvoid main(){gl_FragColor=vec4(f(f(f((7.2-gl_FragCoord.yxy/50+vec3(4,0,4))))),1);}");f.close();filter(loadShader("a"))

3 17
2020-04-18


R(r)mat2(cos(r),sin(r),-sin(r),cos(r))
void main(){vec2 p=(gl_FragCoord.xy*2.-r)/min(r.y,r.x);
for(int i=0;i<4;i++){p=abs(p)-abs(dot(p.x,p.y)*.6);p*=R(t);}
gl_FragColor=vec4(0.05/abs(p.y)*vec3(.1,.5,abs(sin(t)))+0.05/abs(p.x)*vec3(.5,.1,.1),1);}

2 16
2020-04-16


precision lowp float;uniform float time;void main(){for(float i=0.;i<9.;++i){vec2 z=cos(normalize(vec3(gl_FragCoord.xy/512.-.5,.1)).xy*i+time);for(int j=0;j<9;++j){z=vec2(z.x*z.x-z.y*z.y,z.x*z.y*2.)+sin(time+i);if(dot(z,z)<9.)gl_FragColor+=vec4(8.,9.,7.,0)/3e2;}}}

17 55
2020-04-15


m for(int i=0;i<15;i++)c=cos(e=p).z,e.xy*=mat2(c,c-1.,1.-c,c),e=sin(e*8.)*.2+.2,p+=(dot(e,e)-.1)*d;
precision highp float;uniform float time;void main(){float c;vec3 d,e,u,p=d=gl_FragCoord.xyw/2e2-.7;p.z+=time;m u=p=e;m gl_FragColor=vec4(cos(e+u.z*3.),1);}

21 96
2020-04-15


precision highp float;uniform vec2 resolution;uniform float time;
c(p,r) length(p)-r
void main(){vec2 p=((gl_FragCoord.xy)/resolution-.5);p.x=abs(p.x);float f=.005/length(min(min(c(p-vec2(.3,0),.1),c(p-vec2(.2,-.3),.1)),c(p,.3)));gl_FragColor=vec4(f,0,f,1);}

9 37
2020-04-14

某webパネル…

precision highp float;uniform vec2 resolution;uniform float time;
void main(){vec2 p=((gl_FragCoord.xy)/resolution-0.5);p.x=abs(p.x);p.x+=p.y;p.x=step(0.,sin(p.x*20.-time*6.+sin(time*8.)));gl_FragColor=vec4(p.x,p.x,0,1);}

14 54
2020-04-14