init the awkward code

2025-12-17 01:32:50 +09:00 · 2023-02-13 19:32:10 +07:00
commit 27170afcac
5426 changed files with 1244579 additions and 0 deletions
--- a/static/html/visualizers/4.html
+++ b/static/html/visualizers/4.html
@@ -0,0 +1,160 @@
+<html>
+    <head>
+        <style>
+            *{ margin: 0px;}
+            html,body{
+                background-color: black;
+            }
+        </style>
+    </head>
+    <!-- CodePen Home
+#mathober2022 - Hyperbolic
+Tom Hinton  https://codepen.io/TomHinton/pen/GRdBVZm -->
+    <body>
+<!--
+Created for Mathtober, a series of maths based creative promtps that can be found https://fractalkitty.com/2022/09/17/mathober-2022-prompts/
+
+I think modPolar is something I got from Char Stiles? 
+http://charstiles.com/
+-->
+
+<div id="shader"></div>
+<script id="vertex" type="x-shader/x-vertex">
+  varying vec2 vUv;
+	void main() { gl_Position = vec4(position, 1.0);
+               vUv = uv;
+              }
+</script>
+
+<script id="fragment" type="x-shader/x-fragment">
+precision highp float;
+
+uniform vec2 u_resolution;
+uniform float u_time;
+  varying vec2 vUv;
+ 
+const float PI = 3.1415926535897932384626433832795;
+const float TAU = PI * 2.;
+  
+  
+  float smoothMod(float x, float y, float e){
+    float top = cos(PI * (x/y)) * sin(PI * (x/y));
+    float bot = pow(sin(PI * (x/y)),2.);
+    float at = atan(top/bot);
+    return y * (1./2.) - (1./PI) * at ;
+}
+  
+vec2 modPolar(vec2 p, float repetitions) {
+    float angle = 2.*3.14/repetitions;
+    float a = atan(p.y, p.x) + angle/2.;
+    float r = length(p);
+    //float c = floor(a/angle);
+    a = smoothMod(a,angle,033323231231561.9) - angle/2.;
+    //a = mix(a,)
+    vec2 p2 = vec2(cos(a), sin(a))*r;
+   
+  
+   
+  
+
+    return p2;
+}
+  
+ void coswarp(inout vec3 trip, float warpsScale ){
+  
+  float t = u_time;
+
+  trip.xyz += warpsScale * .1 * cos(3. * trip.yzx + (t * .25));
+  trip.xyz += warpsScale * .05 * cos(11. * trip.yzx + (t * .25));
+  trip.xyz += warpsScale * .025 * cos(17. * trip.yzx + (t * .25));
+  
+}
+
+
+  
+void main() {
+	vec2 uv = (gl_FragCoord.xy - u_resolution * .5) / u_resolution.yy + 0.5;
+  
+ float t = (u_time * .5) + length(uv-.5);
+ 
+  uv = modPolar(uv-.5, 17. * sinh(sin(t)));
+  
+  
+	vec3 color = vec3(uv.x, uv.y, 1.);
+  
+  coswarp(color, 3.);
+   coswarp(color, 3.);
+  
+  color.r *= step(fract(sinh(uv.y  ) + sinh(uv.x *( 4. + sin(t) ) ) * .01) *10., .8 );
+  
+  
+    color.g *= step(fract(sinh(uv.y  ) + sinh(uv.x *( 5. + sin(t) ) ) * .01) *5., .8 );
+  
+    
+    color.b *= step(fract(sinh(uv.y  ) + sinh(uv.x *( 6. + sin(t) ) ) * .01) *2., .8 );
+  
+  
+	
+    gl_FragColor = vec4(vec3(color.r, color.g, color.b), 1.);
+}
+</script>
+<script type="module">
+import * as THREE from "https://cdn.skypack.dev/three@0.136.0";
+let camera, scene, renderer, clock;
+let uniforms;
+
+function init() {
+	const container = document.getElementById("shader");
+
+	clock = new THREE.Clock();
+	camera = new THREE.Camera();
+	camera.position.z = 1;
+
+	scene = new THREE.Scene();
+
+	const geometry = new THREE.PlaneBufferGeometry(2, 2);
+
+	uniforms = {
+		u_time: { type: "f", value: 1.0 },
+		u_resolution: { type: "v2", value: new THREE.Vector2() },
+	};
+
+	const material = new THREE.ShaderMaterial({
+		uniforms,
+		vertexShader: document.getElementById("vertex").textContent,
+		fragmentShader: document.getElementById("fragment").textContent
+	});
+
+	const mesh = new THREE.Mesh(geometry, material);
+	scene.add(mesh);
+
+	renderer = new THREE.WebGLRenderer();
+	renderer.setPixelRatio(window.devicePixelRatio);
+
+	container.appendChild(renderer.domElement);
+
+	onWindowResize();
+	window.addEventListener("resize", onWindowResize);
+}
+
+function onWindowResize() {
+	renderer.setSize(window.innerWidth, window.innerHeight);
+	uniforms.u_resolution.value.x = renderer.domElement.width;
+	uniforms.u_resolution.value.y = renderer.domElement.height;
+}
+
+function render() {
+	uniforms.u_time.value = clock.getElapsedTime();
+	renderer.render(scene, camera);
+}
+
+function animate() {
+	render();
+	requestAnimationFrame(animate);
+}
+
+init();
+animate();
+</script>
+    </body>
+</html>