// //original. // //*****OLDEST***** //precision highp float;uniform vec2 resolution;uniform float time; //float m(vec3 p,vec3 k) {return min(2.-dot(abs(p),k),length(mod(p.xz,2.)-1.)-.2);}void main(){vec2 k=resolution;vec2 p=(2.*gl_FragCoord.xy-k)/k;vec3 d=normalize(vec3(p,1.));vec3 e=vec3(0,0,time);float t=0.;for(int i=0;i<50;++i)t+=m(e+d*t,vec3(0,1,0));gl_FragColor=vec4(d*vec3(t*.0)+m((e+d*t)+.1,vec3(0,1,0)),1.);} // //precision highp float;uniform vec2 resolution;uniform float time;vec3 e;vec3 k=vec3(0,1,0);float m(vec3 p) {return min(2.-dot(abs(e+p),k),length(mod((e+p).xz,2.)-1.)-.2);}void main(){vec2 k=resolution;vec2 p=(2.*gl_FragCoord.xy-k)/k;vec3 d=(vec3(p,1.));e=vec3(0,0,time);float t=0.;for(int i=0;i<50;++i)t+=m(d*t);gl_FragColor=vec4(d*vec3(t*.05)+m((d*t)+.1),1.);} // //#define w vec3 //precision highp float;uniform vec2 resolution;uniform float time;w e;w k=w(0,1,0);float m(w p) {p+=e;return min(4.-dot(abs(p),k),length(mod(p.xz,2.)-1.)-.2);}void main(){vec2 k=resolution;vec2 p=(2.*gl_FragCoord.xy-k)/k;w d=(w(p,1.));e=w(0,0,time);float t=0.;for(int i=0;i<50;++i)t+=m(d*t);gl_FragColor=vec4(w(t*.02)+m((d*t)+.2)*abs(d),1.);} // //#define w vec3 //precision highp float;uniform vec2 resolution;uniform float time;float t=.0;w e;w k=w(0,1,0);void m(w p) {p+=e;t+=min(4.-dot(abs(p),k),length(mod(p.xz,2.)-1.)-.2);}void main(){vec2 k=resolution;w d=(w((2.*gl_FragCoord.xy-k)/k,1.));e=w(0,0,time);for(int i=0;i<50;++i)m(d*t);m((d*t)+.2);gl_FragColor=vec4(w(t*.1)*(d)*t,1.);} // //#define w vec3 //#define u resolution //precision highp float;uniform vec2 u;uniform float time;float t=.0;w e,d,p,k=w(0,1,0);void m(){p=e+d*t;t+=min(4.-dot(abs(p),k),length(mod(p.xz,2.)-1.)-.2);}void main(){vec2 k=u;d=(w((2.*gl_FragCoord.xy-k)/k,1.));e=w(0,0,time);for(int i=0;i<50;++i)m();e+=.1;gl_FragColor=vec4(w(t*.1),1.);} // //#define w vec3 //precision highp float;uniform vec2 resolution;uniform float time;float s,t;w e,d,p;void m(){p=e+d*s;s+=t=min(2.-abs(p.y),length(mod(p.xz,2.)-1.)-.2);}void main(){vec2 k=resolution;d=(w((2.*gl_FragCoord.xy-k)/k,1));e.z=time;for(int i=0;i<50;++i)m();e+=.1;m();gl_FragColor=vec4(t+w(s*.1),1);} // //#define q vec4 //precision highp float;uniform float time;float s,t;q e,d,p;void m(){p=e+d*s;s+=t=min(2.+p.y,length(mod(p.xz,2.)-1.)-.2);}void main(){e.z=time;q k=q(1e3);d=(q((2.*gl_FragCoord-k)/k));for(int i=0;i<20;++i)m();e+=.1;m();gl_FragColor=q(t+q(s*.1).xyz,1);} // //#define q vec4 //precision highp float;uniform float time;q v,e,d,p;void m(){p=e+d*v.s;v.s+=v.t=min(2.+p.y,length(mod(p.xz,2.)-1.)-.2);}void main(){e.z=time;q k=q(1e3);d=(q((2.*gl_FragCoord-k)/k));for(int i=0;i<20;++i)m();e+=.1;m();gl_FragColor=q(v.t+q(v.s*.1).xyz,1);} // //#define q vec4 //precision lowp float;uniform float time;float s,t;q e,d,p;void m(){p=e+d*s;s+=t=min(2.+p.y,length(mod(p.xz,2.)-1.)-.2);}void main(){e.z=time;q k=q(1e3);d=(q((2.*gl_FragCoord-k)/k));for(int i=0;i<20;++i)m();e+=.1;m();gl_FragColor=q(t+q(s*.1).xyz,1);} // //*****LATEST***** //#define q vec4 //precision lowp float;uniform float time;float s,t;q e,d,p;void m(){p=e+d*s;s+=t=min(2.+p.y,length(mod(p.xz,2.)-1.)-.3);}void main(){e.z=-time;q k=q(1e3);d=(2.*gl_FragCoord-k)/k;for(int i=0;i<20;i++)m();e+=.1;m();gl_FragColor=q((.2*d+s*.1).xyz+t,1);} // // Thanks, // #つぶやきGLSL crew // https://twigl.app/ // precision highp float; uniform vec2 resolution; uniform float time; uniform vec2 mouse; uniform sampler2D backbuffer; #define q vec4 float s,t; q e,d,p; void m(){ p=e+d*s; s+=t=min(2.+p.y,length(mod(p.xz,2.)-1.)-.3); } void main(){ e.z=-time; q k=q(1e3);d=(2.*gl_FragCoord-k)/k; for(int i=0;i<20;i++) m(); //trick for 1k raymarchers //https://www.pouet.net/topic.php?which=7535&page=1 e+=.1; m(); gl_FragColor=q((.2*d+s*.1).xyz+t,1); }