006: the edge...
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16 changed files with 4461 additions and 20 deletions
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html/006-the-edge/index.html
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html/006-the-edge/index.html
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<!doctype html>
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<meta charset="utf-8" />
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<title>com.mekanoe.art // 006-the-edge</title>
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<style>
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html,
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body {
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margin: 0;
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padding: 0;
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overflow: hidden;
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background-color: black;
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color: white;
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font-family: Atkinson Hyperlegible, sans-serif;
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}
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main {
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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}
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</style>
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<link rel="stylesheet" href="/work.css" />
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<main>
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<canvas id="canvas" width="1280" height="720"></canvas>
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<div id="telemetry">XX.X FPS (XX.X ms)</div>
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<div id="loading" class="loading-active"><div id="loading-text">[noeidelon] [stage 1]<br />bootstrapping...<span id="stage1-error"><br />this is taking a while...</span><span id="stage1-error2"><br />[panic] <span style="color: red">heck wtf</span></span></div></div>
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<div id="editor"></div>
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<nav><a class="nav-left" href="/005-thoughtform-hidenoe">⇠ 005-thoughtform-hidenoe</a></nav>
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</main>
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<script src="/006-the-edge/main.js" type="module"></script>
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199
html/006-the-edge/main.js
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html/006-the-edge/main.js
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import {
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plane_default
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} from "../chunk-a6d990db9d9ec9c3.js";
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import {
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MeshRenderer,
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Renderable,
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Shader,
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Transform,
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WebGLApp,
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basic_default1 as basic_default,
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etoq,
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v3
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} from "../chunk-652b721da622b7d9.js";
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// src/006-the-edge/shaders/rail.frag
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var rail_default = `#version 300 es
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precision highp float;
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uniform float u_time;
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in vec2 uv0;
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out vec4 fragColor;
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const float railWidth = 0.041666;
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const float railWiggle = 0.0015;
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vec3 mod289(vec3 x) {
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return x - floor(x * (1.0 / 289.0)) * 289.0;
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}
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vec4 mod289(vec4 x) {
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return x - floor(x * (1.0 / 289.0)) * 289.0;
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}
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vec4 permute(vec4 x) {
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return mod289(((x*34.0)+1.0)*x);
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}
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vec4 taylorInvSqrt(vec4 r)
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{
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return 1.79284291400159 - 0.85373472095314 * r;
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}
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float snoise(vec3 v) {
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const vec2 C = vec2(1.0/6.0, 1.0/3.0) ;
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const vec4 D = vec4(0.0, 0.5, 1.0, 2.0);
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// First corner
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vec3 i = floor(v + dot(v, C.yyy) );
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vec3 x0 = v - i + dot(i, C.xxx) ;
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// Other corners
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vec3 g = step(x0.yzx, x0.xyz);
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vec3 l = 1.0 - g;
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vec3 i1 = min( g.xyz, l.zxy );
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vec3 i2 = max( g.xyz, l.zxy );
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// x0 = x0 - 0.0 + 0.0 * C.xxx;
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// x1 = x0 - i1 + 1.0 * C.xxx;
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// x2 = x0 - i2 + 2.0 * C.xxx;
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// x3 = x0 - 1.0 + 3.0 * C.xxx;
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vec3 x1 = x0 - i1 + C.xxx;
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vec3 x2 = x0 - i2 + C.yyy; // 2.0*C.x = 1/3 = C.y
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vec3 x3 = x0 - D.yyy; // -1.0+3.0*C.x = -0.5 = -D.y
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// Permutations
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i = mod289(i);
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vec4 p = permute( permute( permute(
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i.z + vec4(0.0, i1.z, i2.z, 1.0 ))
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+ i.y + vec4(0.0, i1.y, i2.y, 1.0 ))
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+ i.x + vec4(0.0, i1.x, i2.x, 1.0 ));
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// Gradients: 7x7 points over a square, mapped onto an octahedron.
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// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)
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const float n_ = 0.142857142857; // 1.0/7.0
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vec3 ns = n_ * D.wyz - D.xzx;
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vec4 j = p - 49.0 * floor(p * ns.z * ns.z); // mod(p,7*7)
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vec4 x_ = floor(j * ns.z);
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vec4 y_ = floor(j - 7.0 * x_ ); // mod(j,N)
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vec4 x = x_ *ns.x + ns.yyyy;
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vec4 y = y_ *ns.x + ns.yyyy;
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vec4 h = 1.0 - abs(x) - abs(y);
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vec4 b0 = vec4( x.xy, y.xy );
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vec4 b1 = vec4( x.zw, y.zw );
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//vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
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//vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
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vec4 s0 = floor(b0)*2.0 + 1.0;
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vec4 s1 = floor(b1)*2.0 + 1.0;
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vec4 sh = -step(h, vec4(0, 0, 0, 0));
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vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;
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vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;
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vec3 p0 = vec3(a0.xy,h.x);
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vec3 p1 = vec3(a0.zw,h.y);
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vec3 p2 = vec3(a1.xy,h.z);
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vec3 p3 = vec3(a1.zw,h.w);
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//Normalise gradients
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vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
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p0 *= norm.x;
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p1 *= norm.y;
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p2 *= norm.z;
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p3 *= norm.w;
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// Mix final noise value
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vec4 m = max(0.6 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);
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m = m * m;
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return 42.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1),
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dot(p2,x2), dot(p3,x3) ) );
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}
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void main() {
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vec2 cUV = uv0 * 2.0 - 1.0;
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float sintime = sin(u_time * 0.0001);
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// wiggle
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float vY = cos(uv0.y * sintime);
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float vX = sin(uv0.x * sintime * 10000.0);
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float vibes = railWiggle * snoise(vec3(vY, vX, u_time));
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// smoothly calculate the wiggle
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float rail = 1.0 - step(abs(pow(abs(cUV.y) - railWidth + vibes, 30.0)), 1.0);
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// snip out wrapping
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// if (abs(cUV.y) > railWidth * 2.0) {
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// discard;
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// }
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vec4 railColor = vec4(rail);
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// albedo (staticy colorful <333)
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float noise = abs(sin(snoise(uv0.xxy * 10000. * u_time)));
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float noise2 = abs(sin(snoise(uv0.yxy * 10000.* u_time)));
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float noise3 = abs(sin(snoise(uv0.xyx * 10000. * u_time)));
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railColor.rgb -= (vec3(noise, noise2, noise3) * 0.3);
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// simplex noise based on 3 moire spirals
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float theta = atan(cUV.y, uv0.x);
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float spiral = sin(10.0 * (sqrt(19.0 + (15.0 * sintime * 0.05))) - 1000.0 * theta - 0.01 * u_time * 0.0001);
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float theta2 = atan(1.0-(cUV.y / 1000.0), uv0.x - (railWidth / 20.));
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float spiral2 = sin(10.0 * (sqrt(20.0 + u_time * 0.00001) - 10000.0 * theta2 - 0.01 * u_time * 0.0001));
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float theta3 = atan(1.0 - uv0.y/10.0, uv0.x);
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float spiral3 = sin(100.0 * (sqrt(100.0 + uv0.y) - 100000.0 * theta3 - 0.01 * sintime * 0.0001));
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float sparkleNoise = snoise(vec3(spiral, spiral2, u_time * 0.00001));
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fragColor.r = step(abs(spiral2 * spiral * sparkleNoise), mix(0.0333, 0.0666, abs(uv0.y + sin(u_time * 0.00001))));
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fragColor.r *= pow(1.0 - abs(cUV.y), 3.0) * abs(spiral3);
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fragColor.r *= 10.0;
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if (cUV.y > 0.0) {
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fragColor.r = 0.0;
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}
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// fragColor.g = spiral3;
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// keep within 0-1
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fragColor = clamp(vec4(fragColor + railColor), vec4(0), vec4(1));
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}
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`;
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// src/006-the-edge/shaders/rail.ts
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var basicShaderConfig = {
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attributes: {
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vertex: "a_vertex",
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uv0: "a_uv0",
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normal: "a_normal",
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vertexColor: "a_vertex_color"
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},
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uniforms: {
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view: "u_view",
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projection: "u_projection",
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objectToWorld: "u_object_to_world",
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objectToWorldInv: "u_object_to_world_inv",
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light0: "u_light_0",
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light0Color: "u_light_0_color",
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time: "u_time",
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albedo: "u_albedo",
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texture0: "u_texture_0",
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texture1: "u_texture_1",
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texture2: "u_texture_2"
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}
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};
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var rail2 = (app, fragShader = rail_default) => new Shader(basicShaderConfig).vertex(basic_default).fragment(fragShader).app(app);
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// src/006-the-edge/main.ts
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var app = new WebGLApp({ fov: 45 });
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var camera = new Transform([0, 0, 2], etoq([0, 0, 0]));
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var transformRail = new Transform(v3(0), etoq(v3(0)), [1000, 1, 1]);
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new Renderable(app, transformRail, new MeshRenderer(app, plane_default, rail2(app), camera).configure({}));
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app.start();
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