137 lines
3.4 KiB
C
137 lines
3.4 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_0_H_
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# define MARK_0_H_
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const char *mark_h_0 = ""
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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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"return p.y-w(p+j*3.)*.2+1.;"
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"}"
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"float B(vec3 p)"
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"{"
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"return min(length(p+vec3(0.,8.,0.))-8.5,l(p,2.3)-.5);"
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"}"
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"float C(vec3 p)"
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"{"
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"p.xz=r(p.xz,Y.z*11.);"
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"float d1=max(length(p)-6.,p.y);"
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"s(p.xz,5.,g/32.);"
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"p.x=abs(p.x)-2.;"
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"float dist=mix(length(p.yz),length(p.xyz),step(0.,p.x));"
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"return min(d1,dist-.4);"
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"}"
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"float D(vec3 p)"
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"{"
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"p.y-=4.;"
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"p.xz=r(p.xz,j*6.);"
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"s(p.xz,0.,g/1.5);"
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"p.yz=r(p.yz,g/2.);"
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"float z=l(p,2.4)-.5;"
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"return min(max(.5-z,length(p)-1.5-Y.z*22.),z);"
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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)-33.,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==0.)"
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"p=vec3(12.,1.,0.),q.yz=r(q.yz,1.+j*-1.2),q.xz=r(q.xz,3.-j*1.5);"
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"else"
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" if(k==1.)"
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"p=vec3(-3.,3.,-16.+j*10.),q.xz=r(q.xz,j*-.6);"
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"else"
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" if(k==2.)"
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"p=vec3(0.,12.-j*8.,-16.+j*12.),q.yz=r(q.yz,.4+j*.4);"
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"else"
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" if(k==3.)"
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"p=vec3(2.,2.,-6.-Y.z*22.);"
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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(.05,.1,.2)*(t+5.)*.2;"
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"d=.7;"
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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=.8;"
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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=.2,e.y=8.;"
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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_0_H_
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