docs(site): switch hero to Stripe-style wave gradient
Replace the custom liquid aurora shader with the MIT wave-gradient mesh animation, vendored locally and tinted for OSG brand colors.
This commit is contained in:
Rocky
@@ -0,0 +1,21 @@
|
||||
MIT License
|
||||
|
||||
Copyright (c) 2022 Mohamed ElSaadany
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@@ -0,0 +1,341 @@
|
||||
/*! wave-gradient (MIT) https://github.com/sa3dany/wave-gradient — Copyright (c) 2022 Mohamed ElSaadany */
|
||||
"use strict";
|
||||
var WaveGradientModule = (() => {
|
||||
var __defProp = Object.defineProperty;
|
||||
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
|
||||
var __getOwnPropNames = Object.getOwnPropertyNames;
|
||||
var __hasOwnProp = Object.prototype.hasOwnProperty;
|
||||
var __export = (target, all) => {
|
||||
for (var name in all)
|
||||
__defProp(target, name, { get: all[name], enumerable: true });
|
||||
};
|
||||
var __copyProps = (to, from, except, desc) => {
|
||||
if (from && typeof from === "object" || typeof from === "function") {
|
||||
for (let key of __getOwnPropNames(from))
|
||||
if (!__hasOwnProp.call(to, key) && key !== except)
|
||||
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
|
||||
}
|
||||
return to;
|
||||
};
|
||||
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
|
||||
|
||||
// src/wave-gradient.js
|
||||
var wave_gradient_exports = {};
|
||||
__export(wave_gradient_exports, {
|
||||
WaveGradient: () => WaveGradient
|
||||
});
|
||||
|
||||
// src/shaders.js
|
||||
var vert = `#version 300 es
|
||||
vec3 o(vec3 i,vec3 c,float r){return c*r+i*(1.-r);}vec3 o(vec3 n){return n-floor(n*(1./289.))*289.;}vec4 o(vec4 n){return n-floor(n*(1./289.))*289.;}vec4 e(vec4 n){return o((n*34.+1.)*n);}vec4 v(vec4 y){return 1.79284291400159-.85373472095314*y;}float t(vec3 l){const vec2 s=vec2(1./6.,1./3.);const vec4 u=vec4(0.,.5,1.,2.);vec3 a=floor(l+dot(l,s.yyy)),x=l-a+dot(a,s.xxx),d=step(x.yzx,x.xyz),f=1.-d,z=min(d.xyz,f.zxy),w=max(d.xyz,f.zxy),m=x-z+s.xxx,C=x-w+s.yyy,p=x-u.yyy;a=o(a);vec4 P=e(e(e(a.z+vec4(0.,z.z,w.z,1.))+a.y+vec4(0.,z.y,w.y,1.))+a.x+vec4(0.,z.x,w.x,1.));vec3 S=.142857142857*u.wyz-u.xzx;vec4 L=P-49.*floor(P*S.z*S.z),F=floor(L*S.z),R=floor(L-7.*F),n=F*S.x+S.yyyy,W=R*S.x+S.yyyy,b=1.-abs(n)-abs(W),G=vec4(n.xy,W.xy),q=vec4(n.zw,W.zw),h=floor(G)*2.+1.,g=floor(q)*2.+1.,O=-step(b,vec4(0.)),B=G.xzyw+h.xzyw*O.xxyy,A=q.xzyw+g.xzyw*O.zzww;vec3 E=vec3(B.xy,b.x),Z=vec3(B.zw,b.y),Y=vec3(A.xy,b.z),X=vec3(A.zw,b.w);vec4 V=v(vec4(dot(E,E),dot(Z,Z),dot(Y,Y),dot(X,X)));E*=V.x;Z*=V.y;Y*=V.z;X*=V.w;vec4 U=max(.6-vec4(dot(x,x),dot(m,m),dot(C,C),dot(p,p)),0.);U=U*U;return 42.*dot(U*U,vec4(dot(E,x),dot(Z,m),dot(Y,C),dot(X,p)));}uniform mediump vec2 u_Resolution;uniform float u_Amplitude,u_Realtime,u_Seed;uniform vec3 u_BaseColor;uniform int u_LayerCount;uniform struct WaveLayers{float noiseCeil;float noiseFloor;float noiseFlow;float noiseSeed;float noiseSpeed;vec2 noiseFreq;vec3 color;} u_WaveLayers[9];in vec3 a_Position;out vec3 v_Color;void main(){float T=u_Realtime*5e-6;vec2 Q=vec2(.00014,.00029),N=u_Resolution*a_Position.xy*Q;float M=u_Amplitude*(2./u_Resolution.y),K=t(vec3(N.x*3.+T*3.,N.y*4.,T*10.+u_Seed));K*=1.-pow(abs(a_Position.y),2.);K=max(0.,K);gl_Position=vec4(a_Position.x,a_Position.y+K*M,a_Position.z,1.);v_Color=u_BaseColor;for(int a=0;a<u_LayerCount;a++){WaveLayers J=u_WaveLayers[a];float K=t(vec3(N.x*J.noiseFreq.x+T*J.noiseFlow,N.y*J.noiseFreq.y,T*J.noiseSpeed+J.noiseSeed));K=K/2.+.5;K=smoothstep(J.noiseFloor,J.noiseCeil,K);v_Color=o(v_Color,J.color,pow(K,4.));}}
|
||||
`;
|
||||
var frag = `#version 300 es
|
||||
precision mediump float;uniform vec2 u_Resolution;uniform float u_ShadowPower;in vec3 v_Color;out vec4 color;void main(){vec2 I=gl_FragCoord.xy/u_Resolution.xy;color=vec4(v_Color,1.);color.y-=pow(I.y+sin(-12.)*I.x,u_ShadowPower)*.4;}
|
||||
`;
|
||||
|
||||
// src/wave-gradient.js
|
||||
function parseRGB(hex) {
|
||||
const result = hex.match(/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i) || hex.match(/^#?([a-f\d])([a-f\d])([a-f\d])$/i);
|
||||
return result ? result.slice(1, 4).map((c) => {
|
||||
return parseInt(c.length < 2 ? c + c : c, 16) / 255;
|
||||
}) : null;
|
||||
}
|
||||
var ClipSpace = class {
|
||||
static createPlaneGeometry(widthSegments, depthSegments) {
|
||||
const gridX = Math.ceil(widthSegments);
|
||||
const gridZ = Math.ceil(depthSegments);
|
||||
const vertexCount = 3 * (gridX + 1) * (gridZ + 1);
|
||||
const indexCount = 3 * 2 * gridX * gridZ;
|
||||
const positions = new ArrayBuffer(4 * vertexCount);
|
||||
const indices = new ArrayBuffer(4 * indexCount);
|
||||
for (let z = gridZ, i = 0, view = new DataView(positions); z >= 0; z--) {
|
||||
const v = z / gridZ;
|
||||
const clipY = v * 2 - 1;
|
||||
for (let x = gridX; x >= 0; x--, i += 3) {
|
||||
const clipX = x / gridX * 2 - 1;
|
||||
view.setFloat32((i + 0) * 4, clipX, true);
|
||||
view.setFloat32((i + 1) * 4, clipY, true);
|
||||
view.setFloat32((i + 2) * 4, v, true);
|
||||
}
|
||||
}
|
||||
const verticesAcross = gridX + 1;
|
||||
for (let z = 0, i = 0, view = new DataView(indices); z < gridZ; z++) {
|
||||
for (let x = 0; x < gridX; x++, i += 6) {
|
||||
view.setUint32((i + 0) * 4, (z + 0) * verticesAcross + x, true);
|
||||
view.setUint32((i + 1) * 4, (z + 0) * verticesAcross + x + 1, true);
|
||||
view.setUint32((i + 2) * 4, (z + 1) * verticesAcross + x, true);
|
||||
view.setUint32((i + 3) * 4, (z + 0) * verticesAcross + x + 1, true);
|
||||
view.setUint32((i + 4) * 4, (z + 1) * verticesAcross + x + 1, true);
|
||||
view.setUint32((i + 5) * 4, (z + 1) * verticesAcross + x, true);
|
||||
}
|
||||
}
|
||||
return { positions, indices, count: indexCount };
|
||||
}
|
||||
static prefixName(name, prefix) {
|
||||
return `${prefix}${name[0].toUpperCase()}${name.slice(1)}`;
|
||||
}
|
||||
constructor(config) {
|
||||
this.gl = config.gl;
|
||||
this.program = this.createProgram(config.shaders);
|
||||
this._attributes = {};
|
||||
this.setupAttributes(config.attributes);
|
||||
this._elementBuffer;
|
||||
this.setElements(config.elements);
|
||||
this._uniforms = {};
|
||||
this.setupUniforms(config.uniforms);
|
||||
}
|
||||
compileShader(type, source) {
|
||||
const { gl } = this;
|
||||
let shader = gl.createShader(type);
|
||||
if (!shader)
|
||||
throw new Error("can't create shader");
|
||||
gl.shaderSource(shader, source);
|
||||
gl.compileShader(shader);
|
||||
return shader;
|
||||
}
|
||||
debugProgram(program) {
|
||||
const { gl } = this;
|
||||
const [vs, fs] = gl.getAttachedShaders(program) ?? [];
|
||||
if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
|
||||
throw new Error(
|
||||
`can't link WebGL program.
|
||||
${gl.getProgramInfoLog(program)}
|
||||
${gl.getShaderInfoLog(vs)}
|
||||
${gl.getShaderInfoLog(fs)}`
|
||||
);
|
||||
}
|
||||
}
|
||||
createProgram(shaders) {
|
||||
const { gl } = this;
|
||||
const [vs, fs] = [
|
||||
this.compileShader(gl.VERTEX_SHADER, shaders[0]),
|
||||
this.compileShader(gl.FRAGMENT_SHADER, shaders[1])
|
||||
];
|
||||
const program = gl.createProgram();
|
||||
if (!program)
|
||||
throw new Error("can't create WebGL program");
|
||||
gl.attachShader(program, vs);
|
||||
gl.attachShader(program, fs);
|
||||
try {
|
||||
gl.linkProgram(program);
|
||||
this.debugProgram(program);
|
||||
} catch (linkError) {
|
||||
gl.deleteProgram(program);
|
||||
throw linkError;
|
||||
} finally {
|
||||
gl.deleteShader(vs);
|
||||
gl.deleteShader(fs);
|
||||
}
|
||||
gl.useProgram(program);
|
||||
return program;
|
||||
}
|
||||
createBuffer() {
|
||||
const { gl } = this;
|
||||
const buffer = gl.createBuffer();
|
||||
if (!buffer)
|
||||
throw new Error("can't create buffer");
|
||||
return buffer;
|
||||
}
|
||||
setupAttributes(attributes) {
|
||||
const { gl, program } = this;
|
||||
for (const [name, dataBuffer] of Object.entries(attributes)) {
|
||||
const prefixedName = ClipSpace.prefixName(name, "a_");
|
||||
const buffer = this.createBuffer();
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
|
||||
gl.bufferData(gl.ARRAY_BUFFER, dataBuffer, gl.STATIC_DRAW);
|
||||
const location = gl.getAttribLocation(program, prefixedName);
|
||||
gl.enableVertexAttribArray(location);
|
||||
gl.vertexAttribPointer(location, 3, gl.FLOAT, false, 0, 0);
|
||||
this._attributes[name] = { buffer, location };
|
||||
}
|
||||
}
|
||||
setAttribute(attributeName, dataBuffer) {
|
||||
const { gl } = this;
|
||||
gl.bufferData(gl.ARRAY_BUFFER, dataBuffer, gl.STATIC_DRAW);
|
||||
}
|
||||
setElements(elements) {
|
||||
const { gl } = this;
|
||||
if (!this._elementBuffer) {
|
||||
const buffer = this.createBuffer();
|
||||
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, buffer);
|
||||
this._elementBuffer = buffer;
|
||||
}
|
||||
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, elements, gl.STATIC_DRAW);
|
||||
}
|
||||
createUniformSetter(name, type, initialValue) {
|
||||
const { gl, program } = this;
|
||||
const uniformX = `uniform${type}`;
|
||||
const location = gl.getUniformLocation(program, name);
|
||||
const setter = (value) => {
|
||||
Array.isArray(value) ? gl[uniformX](location, ...value) : gl[uniformX](location, value);
|
||||
};
|
||||
if (initialValue)
|
||||
setter(initialValue);
|
||||
return setter;
|
||||
}
|
||||
setupUniforms(uniforms) {
|
||||
for (const [name, uniform] of Object.entries(uniforms)) {
|
||||
const prefixedName = ClipSpace.prefixName(name, "u_");
|
||||
switch (uniform.type) {
|
||||
case void 0:
|
||||
Array.isArray(uniform.value) && uniform.value.forEach(
|
||||
(member, i) => {
|
||||
const structName = name;
|
||||
const prefixedStructName = prefixedName;
|
||||
for (const [name2, uniform2] of Object.entries(member)) {
|
||||
const key = `${structName}[${i}].${name2}`;
|
||||
const prefixedKey = `${prefixedStructName}[${i}].${name2}`;
|
||||
this._uniforms[key] = this.createUniformSetter(
|
||||
prefixedKey,
|
||||
uniform2.type,
|
||||
uniform2.value
|
||||
);
|
||||
}
|
||||
}
|
||||
);
|
||||
break;
|
||||
default:
|
||||
this._uniforms[name] = this.createUniformSetter(
|
||||
prefixedName,
|
||||
uniform.type,
|
||||
uniform.value
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
setUniform(uniformName, newValue) {
|
||||
this._uniforms[uniformName](newValue);
|
||||
}
|
||||
delete() {
|
||||
const { gl } = this;
|
||||
gl.deleteProgram(this.program);
|
||||
for (const [, attribute] of Object.entries(this._attributes)) {
|
||||
this.gl.deleteBuffer(attribute.buffer);
|
||||
}
|
||||
}
|
||||
};
|
||||
var WaveGradient = class {
|
||||
constructor(canvas, options) {
|
||||
const gl = canvas.getContext("webgl2", {
|
||||
antialias: true,
|
||||
depth: false,
|
||||
powerPreference: "low-power"
|
||||
});
|
||||
if (!gl)
|
||||
throw new Error("can't get WebGL2 context");
|
||||
const {
|
||||
amplitude = 320,
|
||||
colors = ["#ef008f", "#6ec3f4", "#7038ff", "#ffba27"],
|
||||
density = [0.06, 0.16],
|
||||
fps = 24,
|
||||
seed = 0,
|
||||
speed = 1.25,
|
||||
time = 0,
|
||||
wireframe = false
|
||||
} = options ?? {};
|
||||
const { clientWidth, clientHeight } = canvas;
|
||||
canvas.width = clientWidth;
|
||||
canvas.height = clientHeight;
|
||||
gl.viewport(0, 0, clientWidth, clientHeight);
|
||||
gl.enable(gl.CULL_FACE);
|
||||
gl.disable(gl.DITHER);
|
||||
gl.disable(gl.DEPTH_TEST);
|
||||
const geometry = ClipSpace.createPlaneGeometry(
|
||||
clientWidth * density[0],
|
||||
clientHeight * density[1]
|
||||
);
|
||||
const clipSpace = new ClipSpace({
|
||||
gl,
|
||||
shaders: [vert, frag],
|
||||
attributes: { position: geometry.positions },
|
||||
elements: geometry.indices,
|
||||
uniforms: {
|
||||
amplitude: { value: amplitude, type: "1f" },
|
||||
baseColor: { value: parseRGB(colors[0]), type: "3f" },
|
||||
realtime: { value: time, type: "1f" },
|
||||
resolution: { value: [clientWidth, clientHeight], type: "2f" },
|
||||
seed: { value: seed, type: "1f" },
|
||||
shadowPower: { value: 6, type: "1f" },
|
||||
layerCount: { value: colors.length - 1, type: "1i" },
|
||||
waveLayers: {
|
||||
value: colors.slice(1).map((color, i, array) => {
|
||||
const r = (i + 1) / array.length + 1;
|
||||
return {
|
||||
noiseCeil: { value: 0.63 + 0.07 * (i + 1), type: "1f" },
|
||||
noiseFloor: { value: 0.1, type: "1f" },
|
||||
noiseFlow: { value: 6.5 + 0.3 * (i + 1), type: "1f" },
|
||||
noiseSeed: { value: seed + 10 * (i + 1), type: "1f" },
|
||||
noiseSpeed: { value: 11 + 0.3 * (i + 1), type: "1f" },
|
||||
noiseFreq: { value: [2 + r, 3 + r], type: "2f" },
|
||||
color: { value: parseRGB(color), type: "3f" }
|
||||
};
|
||||
})
|
||||
}
|
||||
}
|
||||
});
|
||||
this.gl = gl;
|
||||
this.clipSpace = clipSpace;
|
||||
this.density = density;
|
||||
this.speed = speed;
|
||||
this.frameInterval = 1e3 / fps;
|
||||
this.lastFrameTime = 0;
|
||||
this.shouldRender = true;
|
||||
this.drawMode = wireframe ? this.gl.LINES : this.gl.TRIANGLES;
|
||||
this.drawCount = geometry.count;
|
||||
this.time = time;
|
||||
requestAnimationFrame((now) => {
|
||||
this.render(now);
|
||||
});
|
||||
}
|
||||
resize() {
|
||||
const { gl, gl: { canvas }, clipSpace } = this;
|
||||
const { width, clientWidth, height, clientHeight } = canvas;
|
||||
const resized = width !== clientWidth || height !== clientHeight;
|
||||
if (resized) {
|
||||
canvas.width = clientWidth;
|
||||
canvas.height = clientHeight;
|
||||
gl.viewport(0, 0, clientWidth, clientHeight);
|
||||
this.clipSpace.setUniform("resolution", [clientWidth, clientHeight]);
|
||||
const geometry = ClipSpace.createPlaneGeometry(
|
||||
clientWidth * this.density[0],
|
||||
clientHeight * this.density[1]
|
||||
);
|
||||
clipSpace.setAttribute("position", geometry.positions);
|
||||
clipSpace.setElements(geometry.indices);
|
||||
this.drawCount = geometry.count;
|
||||
}
|
||||
}
|
||||
render(now) {
|
||||
if (this.shouldRender) {
|
||||
requestAnimationFrame((now2) => {
|
||||
this.render(now2);
|
||||
});
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
const delta = now - this.lastFrameTime;
|
||||
if (delta < this.frameInterval) {
|
||||
if (Math.random() > 0.75 === true)
|
||||
this.resize();
|
||||
return;
|
||||
}
|
||||
this.lastFrameTime = now - delta % this.frameInterval;
|
||||
this.time += Math.min(delta, this.frameInterval) * this.speed;
|
||||
this.clipSpace.setUniform("realtime", this.time);
|
||||
this.gl.drawElements(
|
||||
this.drawMode,
|
||||
this.drawCount,
|
||||
this.gl.UNSIGNED_INT,
|
||||
0
|
||||
);
|
||||
}
|
||||
destroy() {
|
||||
this.clipSpace.delete();
|
||||
delete this.gl;
|
||||
this.shouldRender = false;
|
||||
}
|
||||
};
|
||||
return __toCommonJS(wave_gradient_exports);
|
||||
})();
|
||||
|
||||
window.WaveGradient = WaveGradientModule.WaveGradient;
|
||||
Reference in New Issue
Block a user