port from perforce

ev4k/mark_1.h

@@ -0,0 +1,136 @@
+/* File generated with Shader Minifier 1.0.3
+ * http://www.ctrl-alt-test.fr
+ */
+#ifndef MARK_1_H_
+# define MARK_1_H_
+
+const char *mark_h_1 = ""
+ "varying vec4 Y,Z;"
+ "float j,k,g=acos(-1.),h=sqrt(.75);"
+ "vec2 r(vec2 v,float y)"
+ "{"
+   "return cos(y)*v+sin(y)*vec2(-v.y,v.x);"
+ "}"
+ "void s(inout vec2 v,float x,float y)"
+ "{"
+   "float z=mod(atan(v.y,v.x),y)-y*.5;"
+   "v=length(v)*vec2(cos(z),sin(z));"
+   "v.x-=x;"
+ "}"
+ "float l(vec3 p,float f)"
+ "{"
+   "return length(vec2(length(p.xz)-f,p.y));"
+ "}"
+ "float i(vec2 p,float y,float z)"
+ "{"
+   "return length(max(abs(p)-vec2(y)+vec2(z),0.))-z;"
+ "}"
+ "float u(vec3 p)"
+ "{"
+   "return fract(sin(p.x*151.+p.y*33.+p.z)*11.);"
+ "}"
+ "float w(vec3 p)"
+ "{"
+   "vec2 e=vec2(1.,0.);"
+   "vec3 o=smoothstep(0.,1.,fract(p));"
+   "p=floor(p);"
+   "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);"
+   "e=mix(n.xy,n.zw,o.y);"
+   "return mix(e.x,e.y,o.x);"
+ "}"
+ "float A(vec3 p)"
+ "{"
+   "vec3 o=p;"
+   "p.x=mod(p.x+step(2.*h,mod(p.y,4.*h)),2.)-1.;"
+   "p.y=mod(p.y,2.*h)-h;"
+   "o-=p;"
+   "p.z-=(k==10.?0.:44.)+2.*smoothstep(-.3,.3,cos(o.x*.03+cos(o.y*.03)+j*4.)*cos(o.y*.01+cos(o.x*.02)));"
+   "float z=length(p)-1.5;"
+   "s(p.xy,.7,g/3.);"
+   "return max(z,p.x);"
+ "}"
+ "float B(vec3 p)"
+ "{"
+   "return length(p+vec3(sin(j*3.)*22.,j*11.,-22.))-22.;"
+ "}"
+ "float C(vec3 p)"
+ "{"
+   "vec3 o=p;"
+   "p.x=mod(p.x+step(2.*h,mod(p.y,4.*h)),2.)-1.;"
+   "p.y=mod(p.y,2.*h)-h;"
+   "return max(abs(p.z+1.)-.2,h-length(p.xy));"
+ "}"
+ "float D(vec3 p)"
+ "{"
+   "return length(p-vec3(22.,22.,-14.))-Y.z*33.-12.;"
+ "}"
+ "float f(vec3 p)"
+ "{"
+   "float z=min(min(A(p),B(p)),C(p));"
+   "return max(length(p)-77.,min(z,max(.5-z,D(p))));"
+ "}"
+ "void main()"
+ "{"
+   "k=Y.x;"
+   "j=Y.y;"
+   "vec3 q=vec3(Z.xy-.5,1.),p;"
+   "if(k==10.)"
+     "p=vec3(33.,33.,-11.+j*5.),q.yz=r(q.yz,.8-j),q.xz=r(q.xz,.5+j);"
+   "else"
+     " if(k==11.)"
+       "p=vec3(-11.,-11.,-11.),q.yz=r(q.yz,-j*.7),q.xz=r(q.xz,-j);"
+     "else"
+       " if(k==12.)"
+         "p=vec3(33.,11.,33.),q.yz=r(q.yz,j*.4),q.xz=r(q.xz,1.2+j*.6);"
+       "else"
+         " if(k==13.)"
+           "p=vec3(mix(22.-88.*Y.z,-44.*j,j),22.,6.),q.yz=r(q.yz,j*.2),q.xz=r(q.xz,3.4+sqrt(j)*1.4);"
+   "q=normalize(q);"
+   "vec3 b=vec3(0.,0.,0.);"
+   "float a=1.,t=w(q*666.)*.2,y,z,d,m=0;"
+   "while(m++<2.)"
+     "{"
+       "for(d=1.;t<66.&&d>t*.003;t+=max(.01,d+.01))"
+         "d=f(p+q*t);"
+       "if(t>66.)"
+         "{"
+           "break;"
+         "}"
+       "p+=q*t;"
+       "vec2 e=vec2(.04,0.);"
+       "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));"
+       "n=normalize(n);"
+       "z=A(p);"
+       "vec3 c=vec3(.8,0.,0.);"
+       "d=.15;"
+       "if(z>D(p))"
+         "z=D(p),c=vec3(1.,0.,0.),d=.15;"
+       "if(z>B(p))"
+         "z=B(p),c=vec3(.05,.1,.2),d=.7,e.y=.3;"
+       "if(z>C(p))"
+         "z=C(p),c=vec3(0.,.6,.8)*(.9-.15/clamp(dot(n,q),-1.,-.05)),d=.2,e.y=2.;"
+       "n+=(w(p*e.y)+w(p*e.y*2.)+w(p*e.y*4.))*e.x;"
+       "n=normalize(n);"
+       "q=reflect(q,n);"
+       "y=6.;"
+       "for(z=1.;y>0.;y--)"
+         "z-=(y*.5-f(p+n*y*.5))/exp2(y);"
+       "c*=z;"
+       "n.yz=r(n.yz,.6);"
+       "c*=.4+.3*(1.-abs(n.y-.9));"
+       "b+=a*c;"
+       "a*=d;"
+       "t=.3;"
+     "}"
+   "p=vec3(.8);"
+   "q.yz=r(q.yz,.6);"
+   "p+=q.y*.2;"
+   "if(m<2)"
+     "p*=vec3(.95,1.1,1.2);"
+   "if(q.y>0.)"
+     "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.);"
+   "vec3 color=b+a*p;"
+   "gl_FragColor.xyz=length(color)*(cos((Z.y+color)*g*2)*.125+.5);"
+ "}";
+
+#endif // MARK_1_H_