134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
/* File generated with Shader Minifier 1.0.3
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* http://www.ctrl-alt-test.fr
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*/
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#ifndef MARK_2_H_
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# define MARK_2_H_
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const char *mark_h_2 = ""
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"varying vec4 Y,Z;"
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"float j,k,g=acos(-1.),h=sqrt(.75);"
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"vec2 r(vec2 v,float y)"
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"{"
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"return cos(y)*v+sin(y)*vec2(-v.y,v.x);"
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"}"
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"void s(inout vec2 v,float x,float y)"
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"{"
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"float z=mod(atan(v.y,v.x),y)-y*.5;"
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"v=length(v)*vec2(cos(z),sin(z));"
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"v.x-=x;"
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"}"
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"float l(vec3 p,float f)"
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"{"
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"return length(vec2(length(p.xz)-f,p.y));"
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"}"
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"float i(vec2 p,float y,float z)"
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"{"
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"return length(max(abs(p)-vec2(y)+vec2(z),0.))-z;"
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"}"
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"float u(vec3 p)"
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"{"
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"return fract(sin(p.x*151.+p.y*33.+p.z)*11.);"
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"}"
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"float w(vec3 p)"
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"{"
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"vec2 e=vec2(1.,0.);"
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"vec3 o=smoothstep(0.,1.,fract(p));"
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"p=floor(p);"
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"vec4 n=mix(vec4(u(p+e.yyy),u(p+e.xyy),u(p+e.yxy),u(p+e.xxy)),vec4(u(p+e.yyx),u(p+e.xyx),u(p+e.yxx),u(p+e.xxx)),o.z);"
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"e=mix(n.xy,n.zw,o.y);"
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"return mix(e.x,e.y,o.x);"
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"}"
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"float A(vec3 p)"
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"{"
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"vec3 o=p;"
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"p.z=mod(p.z,11.)-5.5;"
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"o-=p;"
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"p.xy=r(p.xy,o.z+smoothstep(-.2,.2,cos(j*5.+cos(o.z*33.))));"
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"s(p.xy,4.8,g/4.5);"
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"return i(p.xz,1.,.3);"
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"}"
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"float B(vec3 p)"
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"{"
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"return 99.;"
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"}"
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"float C(vec3 p)"
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"{"
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"return p.z=mod(p.z,7.)-3.5,s(p.xy,0.,g/4.),max(abs(length(p.xy)-9.)-.2,3.-length(p.yz));"
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"}"
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"float D(vec3 p)"
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"{"
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"p.z+=j*33.;"
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"p.xy=r(p.xy,p.z*.2-j*8.);"
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"p.x+=1.;"
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"float z=3.5*smoothstep(-22.,0.,p.z)-3.+Y.z*17.;"
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"p.z=mod(p.z,.2)-.1;"
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"return l(p.xzy,z)-1.;"
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"}"
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"float f(vec3 p)"
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"{"
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"float z=min(min(A(p),B(p)),C(p));"
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"return max(length(p)-66.,min(z,max(.5-z,D(p))));"
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"}"
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"void main()"
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"{"
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"k=Y.x;"
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"j=Y.y;"
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"vec3 q=vec3(Z.xy-.5,1.),p;"
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"if(k==7.)"
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"p=vec3(-11.,3.,-28.-j*11.),q.yz=r(q.yz,.2),q.xz=r(q.xz,-2.+j);"
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"else"
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" if(k==8.)"
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"p=vec3(-1.,1.,-33.-j*7.);"
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"else"
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" if(k==9.)"
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"p=vec3(Y.z*18.+3.*smoothstep(.3,.4,j),Y.z*3.+3.,j*-60.),q.yz=r(q.yz,.1),q.xz=r(q.xz,j);"
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"q=normalize(q);"
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"vec3 b=vec3(0.,0.,0.);"
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"float a=1.,t=w(q*666.)*.2,y,z,d,m=0;"
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"while(m++<2.)"
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"{"
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"for(d=1.;t<66.&&d>t*.003;t+=max(.01,d+.01))"
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"d=f(p+q*t);"
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"if(t>66.)"
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"{"
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"break;"
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"}"
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"p+=q*t;"
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"vec2 e=vec2(.04,0.);"
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"vec3 n=vec3(f(p+e.xyy)-f(p-e.xyy),f(p+e.yxy)-f(p-e.yxy),f(p+e.yyx)-f(p-e.yyx));"
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"n=normalize(n);"
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"z=A(p);"
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"vec3 c=vec3(.95,1.,.95);"
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"d=.18;"
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"if(z>D(p))"
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"z=D(p),c=vec3(1.,0.,0.),d=.15;"
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"if(z>B(p))"
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"z=B(p),c=vec3(.1),d=.6;"
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"if(z>C(p))"
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"z=C(p),c=vec3(0.,.6,.8)*(.9-.15/clamp(dot(n,q),-1.,-.05)),d=.1,e.y=2.;"
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"n+=(w(p*e.y)+w(p*e.y*2.)+w(p*e.y*4.))*e.x;"
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"n=normalize(n);"
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"q=reflect(q,n);"
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"y=6.;"
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"for(z=1.;y>0.;y--)"
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"z-=(y*.5-f(p+n*y*.5))/exp2(y);"
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"c*=z;"
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"n.yz=r(n.yz,.6);"
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"c*=.4+.3*(1.-abs(n.y-.9));"
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"b+=a*c;"
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"a*=d;"
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"t=.3;"
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"}"
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"p=vec3(.8);"
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"q.yz=r(q.yz,.6);"
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"p+=q.y*.2;"
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"if(m<2)"
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"p*=vec3(.95,1.1,1.2);"
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"if(q.y>0.)"
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"s(q.xz,.4,g/8.),q.x=abs(q.x)-.2,p+=pow(smoothstep(.2,0.,mix(abs(q.z),length(q.xz),step(0.,q.x))),22.);"
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"vec3 color=b+a*p;"
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"gl_FragColor.xyz=length(color)*(cos((Z.y+color)*g*2)*.125+.5);"
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"}";
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#endif // MARK_2_H_
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