4kintro/shader_minified.h

// Generated with Shader Minifier 1.3.6 (https://github.com/laurentlb/Shader_Minifier/)
#ifndef SHADER_MINIFIED_H_
# define SHADER_MINIFIED_H_
# define VAR_texts "k"
# define VAR_texture_sampler "m"
# define VAR_u_resolution "v"
# define VAR_u_time "f"

const char *__temp_cleaned_shader_glsl =
 "uniform vec2 v;"
 "uniform float f;"
 "uniform sampler2D m,k;struct Ray{vec3 rd;vec3 dir;};"
 "mat2 n()"
 "{"
   "vec2 v=vec2(1.3);"
   "return mat2(1./v.x,0.,0.,1./v.y);"
 "}"
 "const float i=2.*acos(-1.),s=sqrt(5.)*.5+.5;"
 "float n(vec3 v,vec2 x)"
 "{"
   "vec3 f=abs(v);"
   "return max(f.y-x.y,max(f.x*sqrt(3.)*.5+f.z*.5,f.z)-x.x);"
 "}"
 "void n(inout vec2 v)"
 "{"
   "float f=acos(-1.)/2.;"
   "v=cos(f)*v+sin(f)*vec2(v.y,-v.x);"
 "}"
 "float x(float v,float f)"
 "{"
   "return min(-.1,max(v,f))+length(max(vec2(.1+v,.1+f),vec2(0)));"
 "}"
 "float t(vec2 v,float f)"
 "{"
   "return fract(tan(distance(v*s,v)*f)*v.x);"
 "}"
 "mat2 t(float v)"
 "{"
   "float f=sin(v),x=cos(v);"
   "return mat2(x,-f,f,x);"
 "}"
 "float n(vec3 v,float f,float i)"
 "{"
   "vec3 r=v;"
   "r.xz*=t(i);"
   "r.yz*=t(i);"
   "n(r.yz);"
   "float m=n(r,vec2(.5+f,.1)),y=n(r,vec2(.2+f,.1));"
   "return x(m,-y);"
 "}"
 "vec2 x(vec3 v)"
 "{"
   "float x=0.,r=1e10;"
   "vec3 i=v;"
   "i.xy*=n();"
   "for(float m=1.;m<=6.;m++)"
     "{"
       "float y=n(i,m*.35,f+abs(2.+.4*sin(f))*m*3.1415/6.);"
       "r=min(r,y);"
       "if(r==y)"
         "x=1.+mod(m,3.);"
     "}"
   "return vec2(r,x);"
 "}"
 "vec3 t(vec3 v,vec3 f,inout vec3 i)"
 "{"
   "float r=0.,m=0.,y=0.;"
   "for(int e=0;e<150;e++)"
     "{"
       "i=v+f*r;"
       "vec2 n=x(i);"
       "r+=n.x;"
       "m=n.y;"
       "if(r>80.)"
         "break;"
       "if(n.x<abs(.001*r))"
         "{"
           "y=1.;"
           "break;"
         "}"
     "}"
   "if(r>80.)"
     "r=-1.;"
   "return vec3(r,m,y);"
 "}"
 "vec3 x(vec3 v,vec3 f,vec3 i)"
 "{"
   "float r=0.,m=0.,y=0.;"
   "for(int e=0;e<50;e++)"
     "{"
       "i=v+f*r;"
       "vec2 n=x(i);"
       "r+=n.x;"
       "m=n.y;"
       "if(r>40.)"
         "break;"
       "if(n.x<abs(.001*r))"
         "{"
           "y=1.;"
           "break;"
         "}"
     "}"
   "if(r>40.)"
     "r=-1.;"
   "return vec3(r,m,y);"
 "}"
 "float e(vec3 v,vec3 f)"
 "{"
   "float r=1.,m=.01;"
   "for(int i=0;i<40;i++)"
     "{"
       "if(m>30.)"
         "break;"
       "float y=x(v+m*f).x;"
       "r=min(r,y/(18.*m));"
       "m+=clamp(y,.005,.5);"
       "if(r<-1.||m>30.)"
         "break;"
     "}"
   "r=max(r,-1.);"
   "return.25*(1.+r)*(1.+r)*(2.-r);"
 "}"
 "vec3 e(vec3 v)"
 "{"
   "vec2 f=vec2(.001,0);"
   "vec3 r=vec3(x(v+f.xyy).x-x(v-f.xyy).x,x(v+f.yxy).x-x(v-f.yxy).x,x(v+f.yyx).x-x(v-f.yyx).x);"
   "return normalize(r);"
 "}"
 "vec3 p(vec3 v,vec3 f)"
 "{"
   "vec3 r=vec3(.5454);"
   "return r+(1.-r)*pow(clamp(1.-dot(v,f),0.,1.),5.);"
 "}"
 "vec3 e(vec3 v,vec3 f,float r,vec3 i,vec3 x,vec3 y,float m)"
 "{"
   "vec3 n=normalize(i),d=vec3(max(0.,dot(n,reflect(x,y)))),s=p(normalize(n-x),n)*m;"
   "float k=e(i+y*.01,v);"
   "d=pow(d,vec3(r))*m;"
   "return f*mix(vec3(1)*vec3(max(0.,dot(n,y))),d,s)*k;"
 "}"
 "float r(vec3 v,vec3 f)"
 "{"
   "float r=0.,m=1.;"
   "for(int i=0;i<8;i++)"
     "{"
       "float y=.01+.02*float(i*i),d=x(v+f*y).x;"
       "r+=(y-d)*m;"
       "m*=.85;"
     "}"
   "return 1.-clamp(.6*r,0.,1.);"
 "}"
 "vec3 e(vec3 v,vec3 f,vec3 m,float i)"
 "{"
   "float y=1.,x=r(v,f);"
   "vec3 n=vec3(.1529);"
   "if(i==0.)"
     "n=vec3(.2863,.1059,.2431),y=1.5;"
   "else if(i==1.)"
     "n=vec3(.3294,.0941,.6),y=.6;"
   "else if(i==2.)"
     "n=vec3(.5804,.9647,1),y=1.;"
   "else if(i==3.)"
     "n=vec3(0),y=1e2;"
   "else if(i==4.)"
     "n=vec3(.9961,1,.9922),y=.3;"
   "vec3 d=vec3(0);"
   "d+=e(vec3(0,-40,-1),vec3(.56,.44,.18)*2.,y,v,m,f,x);"
   "d+=e(vec3(-20,4,10),vec3(.04,.2,.71)*2.,y,v,m,f,x);"
   "vec3 s=vec3(0,4,2);"
   "float c=e(v+f*.01,s);"
   "d+=vec3(.6627,.7098,.8863)*clamp(dot(f,s),0.,1.)*c*x;"
   "d+=vec3(.1333,.1333,.1216)*clamp(dot(f,normalize(s*vec3(-1,0,-1))),0.,1.)*x;"
   "return n*max(vec3(0),d);"
 "}"
 "vec3 p(vec3 f)"
 "{"
   "vec2 r=gl_FragCoord.xy/v.xy;"
   "f=mix(f,f*smoothstep(.8,.4,length(r-vec2(.5))),.9);"
   "f=mix(f,smoothstep(0.,1.,f),.5);"
   "f*=vec3(1);"
   "return pow(f,vec3(1./2.2));"
 "}"
 "vec3 e(vec2 f,vec3 v,vec3 i)"
 "{"
   "vec3 r=normalize(i-v),y=cross(vec3(0,1,0),r);"
   "return normalize(v+r+f.x*y+f.y*cross(r,y)-v);"
 "}"
 "vec3 p(vec2 v,vec3 f,vec3 i)"
 "{"
   "vec3 r=normalize(i-f),y=normalize(cross(vec3(0,1,0),r)),m=normalize(cross(r,y));"
   "vec2 n=vec2(t(gl_FragCoord.xy,.13),t(gl_FragCoord.xy,.4));"
   "return normalize(v.x*y+v.y*m+1.7*r+sqrt(n.x)*(y*sin(n.y*6.283)+m*cos(n.y*6.283))*.25*1.7/150.2);"
 "}"
 "vec3 r(vec2 v)"
 "{"
   "bool r=!true;"
   "vec3 f=vec3(0,5,-3),y=vec3(0),m;"
   "m=r?"
     "p(v,f,y):"
     "e(v,f,y);"
   "vec3 i=vec3(.051,.0667,.1529),n=vec3(0),d=t(f,m,n),s=m;"
   "if(d.z>0.)"
     "{"
       "vec3 k=e(n);"
       "i=e(n,k,m,d.y);"
       "i=i*exp(-d.x*.04)+mix(i,mix(vec3(.3686,.2431,.4392),vec3(.4,.7294,.9216),pow(max(dot(s,vec3(0,.3,-1)),0.),8.)),1.-exp(-d.x*.04))*(1.-exp(-d.x*.04));"
       "m=normalize(reflect(m,k));"
       "vec3 c=n+m*.01,g=x(c,m,n);"
       "if(g.z>0.)"
         "n=c+m*g.x,k=e(n),i+=.1*e(n,k,m,g.y);"
     "}"
   "return i;"
 "}"
 "vec2 e()"
 "{"
   "vec2 r=2.*((gl_FragCoord.xy+vec2(0)*.5)/v.xy-.5);"
   "r.x*=v.x/v.y;"
   "return r;"
 "}"
 "void main()"
 "{"
   "vec3 v=vec3(0);"
   "v+=r(e());"
   "v=p(v);"
   "gl_FragColor=vec4(v,1);"
 "}";

#endif // SHADER_MINIFIED_H_