2 lines
3.4 KiB
JavaScript
2 lines
3.4 KiB
JavaScript
import{c as E} from"../chunk-d24458ad0a4be457.js";import{f as j,g as k,h as z,i as F,j as y,l as B,n as H,o as I} from"../chunk-0ef35489d83e6289.js";var t=`#version 300 es
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precision highp float;uniform float u_time;in vec2 uv0;out vec4 fragColor;const float railWidth=0.041666;const float railWiggle=0.0015;vec3 mod289(vec3 x){return x-floor(x*(1.0/289.0))*289.0;}vec4 mod289(vec4 x){return x-floor(x*(1.0/289.0))*289.0;}vec4 permute(vec4 x){return mod289(((x*34.0)+1.0)*x);}vec4 taylorInvSqrt(vec4 r){return 1.79284291400159-0.85373472095314*r;}float snoise(vec3 v){const vec2 C=vec2(1.0/6.0,1.0/3.0);const vec4 D=vec4(0.0,0.5,1.0,2.0);vec3 i=floor(v+dot(v,C.yyy));vec3 x0=v-i+dot(i,C.xxx);vec3 g=step(x0.yzx,x0.xyz);vec3 l=1.0-g;vec3 i1=min(g.xyz,l.zxy);vec3 i2=max(g.xyz,l.zxy);vec3 x1=x0-i1+C.xxx;vec3 x2=x0-i2+C.yyy;vec3 x3=x0-D.yyy;i=mod289(i);vec4 p=permute(permute(permute(i.z+vec4(0.0,i1.z,i2.z,1.0))+i.y+vec4(0.0,i1.y,i2.y,1.0))+i.x+vec4(0.0,i1.x,i2.x,1.0));const float n_=0.142857142857;vec3 ns=n_*D.wyz-D.xzx;vec4 j=p-49.0*floor(p*ns.z*ns.z);vec4 x_=floor(j*ns.z);vec4 y_=floor(j-7.0*x_);vec4 x=x_*ns.x+ns.yyyy;vec4 y=y_*ns.x+ns.yyyy;vec4 h=1.0-abs(x)-abs(y);vec4 b0=vec4(x.xy,y.xy);vec4 b1=vec4(x.zw,y.zw);vec4 s0=floor(b0)*2.0+1.0;vec4 s1=floor(b1)*2.0+1.0;vec4 sh=-step(h,vec4(0,0,0,0));vec4 a0=b0.xzyw+s0.xzyw*sh.xxyy;vec4 a1=b1.xzyw+s1.xzyw*sh.zzww;vec3 p0=vec3(a0.xy,h.x);vec3 p1=vec3(a0.zw,h.y);vec3 p2=vec3(a1.xy,h.z);vec3 p3=vec3(a1.zw,h.w);vec4 norm=taylorInvSqrt(vec4(dot(p0,p0),dot(p1,p1),dot(p2,p2),dot(p3,p3)));p0*=norm.x;p1*=norm.y;p2*=norm.z;p3*=norm.w;vec4 m=max(0.6-vec4(dot(x0,x0),dot(x1,x1),dot(x2,x2),dot(x3,x3)),0.0);m=m*m;return 42.0*dot(m*m,vec4(dot(p0,x0),dot(p1,x1),dot(p2,x2),dot(p3,x3)));}void main(){vec2 cUV=uv0*2.0-1.0;float sintime=sin(u_time*0.0001);float vY=cos(uv0.y*sintime);float vX=sin(uv0.x*sintime*10000.0);float vibes=railWiggle*snoise(vec3(vY,vX,u_time));float rail=1.0-step(abs(pow(abs(cUV.y)-railWidth+vibes,30.0)),1.0);vec4 railColor=vec4(rail);float noise=abs(sin(snoise(uv0.xxy*10000.*u_time)));float noise2=abs(sin(snoise(uv0.yxy*10000.*u_time)));float noise3=abs(sin(snoise(uv0.xyx*10000.*u_time)));railColor.rgb-=(vec3(noise,noise2,noise3)*0.3);float theta=atan(cUV.y,uv0.x);float spiral=sin(10.0*(sqrt(19.0+(15.0*sintime*0.05)))-1000.0*theta-0.01*u_time*0.0001);float theta2=atan(1.0-(cUV.y/1000.0),uv0.x-(railWidth/20.));float spiral2=sin(10.0*(sqrt(20.0+u_time*0.00001)-10000.0*theta2-0.01*u_time*0.0001));float theta3=atan(1.0-uv0.y/10.0,uv0.x);float spiral3=sin(100.0*(sqrt(100.0+uv0.y)-100000.0*theta3-0.01*sintime*0.0001));float sparkleNoise=snoise(vec3(spiral,spiral2,u_time*0.00001));fragColor.r=step(abs(spiral2*spiral*sparkleNoise),mix(0.0333,0.0666,abs(uv0.y+sin(u_time*0.00001))));fragColor.r*=pow(1.0-abs(cUV.y),3.0)*abs(spiral3);fragColor.r*=10.0;if(cUV.y>0.0){fragColor.r=0.0;}fragColor=clamp(vec4(fragColor+railColor),vec4(0),vec4(1));}`;var O={attributes:{vertex:"a_vertex",uv0:"a_uv0",normal:"a_normal",vertexColor:"a_vertex_color"},uniforms:{view:"u_view",projection:"u_projection",objectToWorld:"u_object_to_world",objectToWorldInv:"u_object_to_world_inv",light0:"u_light_0",light0Color:"u_light_0_color",time:"u_time",albedo:"u_albedo",texture0:"u_texture_0",texture1:"u_texture_1",texture2:"u_texture_2"}},D=(J,K=t)=>new y(O).vertex(B).fragment(K).app(J);var x=new I({fov:45}),P=new j([0,0,2],k([0,0,0])),Q=new j(z(0),k(z(0)),[1000,1,1]);new H(x,Q,new F(x,E,D(x),P).configure({}));x.start();
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