161 lines
4.0 KiB
C
161 lines
4.0 KiB
C
// Generated with Shader Minifier 1.3.6 (https://github.com/laurentlb/Shader_Minifier/)
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#ifndef SHADER_MINIFIED_H_
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# define SHADER_MINIFIED_H_
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# define VAR_resolution "m"
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# define VAR_texts "d"
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# define VAR_texture_sampler "e"
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# define VAR_time "v"
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const char *__temp_cleaned_shader_glsl =
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"uniform float v;"
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"uniform vec2 m;"
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"uniform sampler2D e,d;\n"
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"#define MAX_STEPS 100\n"
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"#define MAX_DIST 20.\n"
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"#define SURF_DIST.001\n"
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"#define TAU 6.283185\n"
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"#define PI 3.141592\n"
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"#define FOG_DENSITY 0.01\nstruct Obj{float distance;int material;};"
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"mat2 n(float v)"
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"{"
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"float m=sin(v),d=cos(v);"
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"return mat2(d,-m,m,d);"
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"}"
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"vec3 n(vec3 v,float m)"
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"{"
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"float d=1.-exp(-m*FOG_DENSITY);"
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"return mix(v,vec3(.17,.16,.24),d);"
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"}"
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"float s(vec3 v,float m)"
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"{"
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"vec2 d=vec2(m,abs(v.z)-.15);"
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"return min(max(d.x,d.y),0.)+length(max(d,0.));"
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"}"
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"float s(vec2 v)"
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"{"
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"float d=1.-smoothstep(-.2,.8,sin(atan(v.y,v.x)*12.))*.14;"
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"return smoothstep(d,d+2.,length(v)*2.);"
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"}"
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"float x(float m,float v)"
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"{"
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"float d=max(.02-abs(-m-v),0.);"
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"return max(-m,v)+d*d*.25/.02;"
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"}"
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"float x(vec3 v)"
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"{"
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"vec3 m=vec3(0),d=v-m,y=vec3(0,0,1)-m;"
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"return length(d-y*clamp(dot(d,y)/dot(y,y),0.,1.))-.2;"
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"}"
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"float p(vec3 v,float m)"
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"{"
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"v.xy*=n(m);"
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"float d=s(v,s(v.xy)),y=x(v-vec3(0,0,-.5));"
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"return.8*x(y,d)-.001;"
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"}"
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"Obj p(vec3 m)"
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"{"
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"float d=1e10;"
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"Obj e=Obj(m.y+1.5+sin(m.z*.6)*.2+sin(m.x*1.3)*.1,0);"
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"{"
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"float y=p(m+vec3(1,0,0),v);"
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"d=min(d,y);"
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"}"
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"{"
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"float y=p(m+vec3(.5,-.87,0),-v);"
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"d=min(d,y);"
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"}"
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"{"
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"float y=p(m+vec3(.5,.87,0),-v);"
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"d=min(d,y);"
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"}"
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"Obj y=Obj(d,1);"
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"return e.distance>y.distance?"
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"y:"
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"e;"
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"}"
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"Obj t(vec3 v,vec3 m)"
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"{"
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"float d=0.;"
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"Obj r=Obj(-1.,-1);"
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"for(int y=0;y<MAX_STEPS;y++)"
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"{"
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"vec3 e=v+m*d;"
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"r=p(e);"
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"d+=r.distance;"
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"if(d>MAX_DIST||r.distance<abs(SURF_DIST*d))"
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"break;"
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"}"
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"if(d>MAX_DIST)"
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"d=-1.;"
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"r.distance=d;"
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"return r;"
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"}"
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"float f(vec3 v,vec3 m)"
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"{"
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"float d=1.,y=.001;"
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"for(int r=0;r<MAX_STEPS;r++)"
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"{"
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"vec3 e=v+y*m;"
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"float c=p(e).distance;"
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"d=min(d,10.*c/y);"
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"if(abs(c)<.001*y)"
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"break;"
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"y+=c;"
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"if(y>20.)"
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"break;"
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"}"
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"return clamp(d,0.,1.);"
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"}"
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"vec3 f(vec3 v)"
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"{"
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"vec2 m=vec2(.001,0);"
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"vec3 d=vec3(p(v+m.xyy).distance-p(v-m.xyy).distance,p(v+m.yxy).distance-p(v-m.yxy).distance,p(v+m.yyx).distance-p(v-m.yyx).distance);"
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"return normalize(d);"
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"}"
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"vec3 f(vec3 m,vec3 v,vec3 d)"
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"{"
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"return m+(1.-m)*pow(clamp(1.-dot(v,d),0.,1.),5.);"
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"}"
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"vec3 f(vec3 v,vec3 d,vec3 m,int y)"
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"{"
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"float e=1.;"
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"vec3 r=vec3(0),c=reflect(m,d),a=vec3(.5),i=vec3(1),n=vec3(.1255);"
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"if(y==0)"
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"n=vec3(.1412),e=3.1;"
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"else if(y==1)"
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"n=vec3(.1765,.1961,.2275),e=21.;"
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"{"
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"vec3 x=normalize(vec3(-2,.3,10)-v),O=vec3(max(0.,dot(x,c))),l=f(a,normalize(x-m),x);"
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"O=pow(O,vec3(e));"
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"r+=n*O*(vec3(.71,.51,.72)*5.)*mix(i*vec3(max(0.,dot(x,d))),O,l);"
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"}"
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"{"
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"vec3 x=normalize(vec3(5,5,-20)-v),O=vec3(max(0.,dot(x,c))),l=f(a,normalize(x-m),x);"
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"O=pow(O,vec3(e));"
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"r+=n*O*(vec3(.14,.36,.83)*7.)*mix(i*vec3(max(0.,dot(x,d))),O,l);"
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"}"
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"{"
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"vec3 x=vec3(0,.4,1);"
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"float O=clamp(dot(d,x),0.,1.),l=f(v+d*.02,x);"
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"r+=n*vec3(1.1,1.2,1.5)*O*O*l;"
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"}"
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"r+=n*vec3(.0353,.2667,.4784)*clamp(dot(d,vec3(0,.6,-1)),0.,1.);"
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"return r;"
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"}"
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"void main()"
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"{"
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"vec2 d=(2.*gl_FragCoord.xy-m.xy)/m.y;"
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"float y=v*.4;"
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"vec3 e=vec3(0),x=e+vec3(4.*sin(y),cos(y),4.*cos(y)),O=normalize(e-x),c=normalize(cross(O,vec3(0,1,0))),l=normalize(d.x*c+d.y*normalize(cross(c,O))+1.4*O),r=vec3(.1451,.1098,.1608)-vec3(.9725,.5176,0)*l.y;"
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"Obj i=t(x,l);"
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"if(i.distance>0.)"
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"{"
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"vec3 a=x+l*i.distance,s=f(a);"
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"r=f(a,s,l,i.material);"
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"r=n(r,i.distance);"
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"}"
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"gl_FragColor=vec4(pow(r,vec3(1./1.3)),1);"
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"}";
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#endif // SHADER_MINIFIED_H_
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