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fluid effect overlay added

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This commit is contained in:
Anuj K 2025-09-02 16:42:53 +05:30
parent 1391d2b5cf
commit 42e873cda5
4 changed files with 954 additions and 19 deletions
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298
index1.html Normal file
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Water-like Cursor Ripples — Strong Chromatic Dispersion</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
width: 100%;
height: 100%;
font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
background: #000000; /* black background */
color: #ffefcc; /* keep nav/footer readable */
overflow: hidden;
}
nav {
position: fixed; top: 0; left: 0; right: 0;
display: flex; justify-content: space-between; align-items: center;
padding: 16px 24px; z-index: 2; pointer-events: none;
}
.nav-left, .nav-right { display: flex; gap: 16px; align-items: center; pointer-events: auto; }
.logo { font-weight: 700; letter-spacing: 0.5px; }
.nav-right button {
background: transparent; color: #ffefcc; border: 1px solid #ffefcc66;
border-radius: 999px; padding: 8px 14px; cursor: pointer;
}
footer {
position: fixed; bottom: 0; left: 0; right: 0;
display: flex; justify-content: space-between; align-items: center;
padding: 16px 24px; z-index: 2; pointer-events: none;
}
footer .title { width: 40%; font-size: clamp(24px, 6vw, 64px); line-height: 1.1; font-weight: 800; }
footer .links { display: flex; gap: 20px; pointer-events: auto; }
canvas.webgl { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; z-index: 0; }
</style>
</head>
<body>
<nav>
<div class="nav-left">
<div class="logo">YP</div>
<p>Work</p><p>About</p><p>Contact</p>
</div>
<div class="nav-right"><button>Get Started</button></div>
</nav>
<footer>
<div class="title">YP</div>
<div class="links">
<a href="#" style="color:#ffefcc;">Twitter</a>
<a href="#" style="color:#ffefcc;">Instagram</a>
<a href="#" style="color:#ffefcc;">Discord</a>
</div>
</footer>
<canvas class="webgl"></canvas>
<script type="module">
import * as THREE from 'https://unpkg.com/three@0.160.0/build/three.module.js';
// Config
const DPR_MAX = 2;
const BASE_TEXT = 'YOUNG PANDAS';
const BG_COLOR = '#000000'; // black background on canvas texture
const TEXT_COLOR = '#ffffff'; // white center text
// Renderer
const canvas = document.querySelector('canvas.webgl');
const renderer = new THREE.WebGLRenderer({ canvas, antialias: true, alpha: true });
renderer.setPixelRatio(Math.min(window.devicePixelRatio || 1, DPR_MAX));
renderer.setSize(window.innerWidth, window.innerHeight);
// Scenes & Camera
const simScene = new THREE.Scene();
const mainScene = new THREE.Scene();
const camera = new THREE.OrthographicCamera(-1, 1, 1, -1, 0, 1);
// Render targets
let width = Math.floor(window.innerWidth * renderer.getPixelRatio());
let height = Math.floor(window.innerHeight * renderer.getPixelRatio());
const rtOptions = {
minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter,
wrapS: THREE.ClampToEdgeWrapping, wrapT: THREE.ClampToEdgeWrapping,
type: THREE.HalfFloatType ?? THREE.FloatType, format: THREE.RGBAFormat,
depthBuffer: false, stencilBuffer: false
};
let rta = new THREE.WebGLRenderTarget(width, height, rtOptions);
let rtb = new THREE.WebGLRenderTarget(width, height, rtOptions);
// Text Canvas -> Texture
let textCanvas, textCtx, textTexture;
function makeTextTexture() {
const dpr = renderer.getPixelRatio();
width = Math.floor(window.innerWidth * dpr);
height = Math.floor(window.innerHeight * dpr);
textCanvas = document.createElement('canvas');
textCanvas.width = width; textCanvas.height = height;
textCtx = textCanvas.getContext('2d', { alpha: true });
// Black background
textCtx.fillStyle = BG_COLOR;
textCtx.fillRect(0, 0, width, height);
// Orange center text
const fontPx = Math.floor(Math.min(width, height) * 0.18);
textCtx.fillStyle = TEXT_COLOR;
textCtx.textAlign = 'center'; textCtx.textBaseline = 'middle';
textCtx.font = `800 ${fontPx}px Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial`;
textCtx.fillText(BASE_TEXT, width * 0.5, height * 0.5);
if (textTexture) textTexture.dispose();
textTexture = new THREE.CanvasTexture(textCanvas);
textTexture.needsUpdate = true;
textTexture.minFilter = THREE.LinearFilter;
textTexture.magFilter = THREE.LinearFilter;
textTexture.format = THREE.RGBAFormat;
}
makeTextTexture();
// Geometry
const quad = new THREE.PlaneGeometry(2, 2);
// Shaders
const passThroughVert = `
varying vec2 vUv;
void main(){ vUv = uv; gl_Position = vec4(position, 1.0); }
`;
// Ripple simulation (tight brush, fast decay)
const simFrag = `
precision highp float;
varying vec2 vUv;
uniform sampler2D uTexture;
uniform vec2 uResolution;
uniform vec2 uMouse;
uniform float uTime;
void main(){
vec2 texel = 1.0 / uResolution;
vec2 data = texture2D(uTexture, vUv).xy;
float h = data.x;
float hPrev = data.y;
float hL = texture2D(uTexture, vUv - vec2(texel.x, 0.0)).x;
float hR = texture2D(uTexture, vUv + vec2(texel.x, 0.0)).x;
float hT = texture2D(uTexture, vUv + vec2(0.0, texel.y)).x;
float hB = texture2D(uTexture, vUv - vec2(0.0, texel.y)).x;
float sum = hL + hR + hT + hB;
float hNew = (sum * 0.5 - hPrev);
hNew *= 0.985;
vec2 frag = vUv * uResolution;
float radius = 8.0;
float dist = length(frag - uMouse);
float impulse = exp(-dist*dist/(2.0*radius*radius));
hNew += 0.25 * impulse;
hNew = mix(hNew, 0.0, 0.01);
gl_FragColor = vec4(hNew, h, 0.0, 1.0);
}
`;
// Render with strong, masked chromatic dispersion (offsets in pixels)
const renderFrag = `
precision highp float;
varying vec2 vUv;
uniform sampler2D uSim;
uniform sampler2D uText;
uniform vec2 uResolution;
uniform float uRefract;
uniform float uCAPixels; // RGB shift in pixels (large for strong separation)
uniform vec2 uCAMask; // gradient thresholds for where CA applies
void main(){
vec2 texel = 1.0 / uResolution;
// Height gradients
float hX = texture2D(uSim, vUv + vec2(texel.x, 0.0)).x
- texture2D(uSim, vUv - vec2(texel.x, 0.0)).x;
float hY = texture2D(uSim, vUv + vec2(0.0, texel.y)).x
- texture2D(uSim, vUv - vec2(0.0, texel.y)).x;
// Normal and base refraction
vec3 normal = normalize(vec3(-hX, -hY, 1.0));
vec2 baseUV = vUv + normal.xy * uRefract;
// Ripple strength mask (lower thresholds -> more CA on ripples)
float g = length(vec2(hX, hY));
float mask = smoothstep(uCAMask.x, uCAMask.y, g);
// Direction along gradient and large pixel-based offsets
vec2 dir = normalize(vec2(hX, hY) + 1e-6);
vec2 px = texel * uCAPixels;
// Exaggerated dispersion: push red/blue more than green
// Red goes +dir, Blue goes -dir, Green slightly centered/offset
vec2 rUV = baseUV + dir * (px * 1.30);
vec2 gUV = baseUV + dir * (px * 0.20);
vec2 bUV = baseUV - dir * (px * 1.35);
float r = texture2D(uText, rUV).r;
float gC = texture2D(uText, gUV).g;
float b = texture2D(uText, bUV).b;
vec4 caColor = vec4(r, gC, b, 1.0);
vec4 base = texture2D(uText, baseUV);
// Mix CA in only on ripples
vec4 color = mix(base, caColor, mask);
// Mild lighting accent
float light = dot(normal, normalize(vec3(0.0, 0.0, 1.0)));
color.rgb += 0.08 * light;
gl_FragColor = color;
}
`;
// Materials & meshes
const simUniforms = {
uTexture: { value: rta.texture },
uResolution: { value: new THREE.Vector2(width, height) },
uMouse: { value: new THREE.Vector2(-1.0, -1.0) },
uTime: { value: 0 }
};
const simMat = new THREE.ShaderMaterial({ vertexShader: passThroughVert, fragmentShader: simFrag, uniforms: simUniforms });
simScene.add(new THREE.Mesh(quad, simMat));
const renderUniforms = {
uSim: { value: rta.texture },
uText: { value: textTexture },
uResolution: { value: new THREE.Vector2(width, height) },
uRefract: { value: 0.8 },
uCAPixels: { value: 8.0 }, // big shift: increase to 10–14 for even more
uCAMask: { value: new THREE.Vector2(0.00008, 0.0005) } // lower => CA engages more
};
const renderMat = new THREE.ShaderMaterial({
vertexShader: passThroughVert, fragmentShader: renderFrag, uniforms: renderUniforms, transparent: true
});
mainScene.add(new THREE.Mesh(quad, renderMat));
// Mouse input
const mouse = new THREE.Vector2(-1, -1);
function setMouseFromEvent(e){
const dpr = renderer.getPixelRatio();
const rect = renderer.domElement.getBoundingClientRect();
const x = (e.clientX - rect.left) * dpr;
const y = (e.clientY - rect.top) * dpr;
mouse.set(x, (rect.height * dpr) - y);
}
renderer.domElement.addEventListener('mousemove', (e)=>{ setMouseFromEvent(e); simUniforms.uMouse.value.copy(mouse); });
renderer.domElement.addEventListener('mouseleave', ()=>{ simUniforms.uMouse.value.set(-1.0, -1.0); });
// Resize
function onResize(){
renderer.setPixelRatio(Math.min(window.devicePixelRatio || 1, DPR_MAX));
renderer.setSize(window.innerWidth, window.innerHeight);
const dpr = renderer.getPixelRatio();
width = Math.floor(window.innerWidth * dpr);
height = Math.floor(window.innerHeight * dpr);
rta.dispose(); rtb.dispose();
rta = new THREE.WebGLRenderTarget(width, height, rtOptions);
rtb = new THREE.WebGLRenderTarget(width, height, rtOptions);
simUniforms.uResolution.value.set(width, height);
renderUniforms.uResolution.value.set(width, height);
makeTextTexture();
renderUniforms.uText.value = textTexture;
}
window.addEventListener('resize', onResize);
// Animate
const clock = new THREE.Clock();
function animate(){
simUniforms.uTime.value = clock.getElapsedTime();
// Sim: rta -> rtb
simUniforms.uTexture.value = rta.texture;
renderer.setRenderTarget(rtb);
renderer.render(simScene, camera);
// Render with latest sim
renderUniforms.uSim.value = rtb.texture;
renderer.setRenderTarget(null);
renderer.render(mainScene, camera);
// Swap
const tmp = rta; rta = rtb; rtb = tmp;
requestAnimationFrame(animate);
}
animate();
</script>
</body>
</html>

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src/fluidDistortion.js Normal file
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import * as THREE from 'three';
// Lightweight ripple simulation: stores current (R) and previous (G) height,
// updates with a damped wave equation + a mouse "splat".
const FluidSimShader = {
uniforms: {
tPrev: { value: null }, // previous state texture (RG)
iResolution: { value: new THREE.Vector2() }, // render-target resolution in pixels
iTime: { value: 0.0 },
mouse: { value: new THREE.Vector3(-1, -1, 0.0) }, // x,y in pixels, z=strength
dissipation: { value: 0.996 }, // global damping
tension: { value: 0.5 }, // wave speed coefficient
radius: { value: 18.0 }, // splat radius in pixels
},
vertexShader: `
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = vec4(position.xy, 0.0, 1.0);
}
`,
fragmentShader: `
precision highp float;
varying vec2 vUv;
uniform sampler2D tPrev;
uniform vec2 iResolution;
uniform float iTime;
uniform vec3 mouse; // mouse.xy in pixels, mouse.z = strength
uniform float dissipation; // 0..1
uniform float tension; // ~0.25..1.0
uniform float radius; // pixels
// Read RG channels: R = current height, G = previous height
vec2 readRG(vec2 uv) {
vec4 c = texture2D(tPrev, uv);
return c.rg;
}
void main() {
// Texel size
vec2 texel = 1.0 / iResolution;
// Current and previous heights at this pixel
vec2 currPrev = readRG(vUv);
float curr = currPrev.r;
float prev = currPrev.g;
// 4-neighbor laplacian on the "current" height field
float up = readRG(vUv + vec2(0.0, texel.y)).r;
float down = readRG(vUv + vec2(0.0, -texel.y)).r;
float right = readRG(vUv + vec2( texel.x, 0.0)).r;
float left = readRG(vUv + vec2(-texel.x, 0.0)).r;
float lap = (up + down + left + right - 4.0 * curr);
// Wave equation with damping: next = curr + (curr - prev) * dissipation + lap * tension
float next = curr + (curr - prev) * dissipation + lap * tension;
// Mouse "splat" - add a Gaussian bump near the pointer when in bounds
if (mouse.z > 0.0001) {
vec2 uvPx = vUv * iResolution;
vec2 d = uvPx - mouse.xy;
// Gaussian falloff in pixel space
float r = radius;
float g = exp(-dot(d, d) / max(1.0, (r * r)));
// Scale by strength; sign controls up/down displacement
next += g * mouse.z * 0.5;
}
// Pack next and curr into RG for the next step
gl_FragColor = vec4(next, curr, 0.0, 1.0);
}
`
};
// Screen-space distortion shader with chromatic aberration
export const FluidDistortionShader = {
uniforms: {
tDiffuse: { value: null }, // input scene color
tSim: { value: null }, // ripple height texture (R = height)
iResolution: { value: new THREE.Vector2() }, // pixels
amount: { value: 0.065 }, // UV offset scale
chromaticAmount: { value: 0.008 } // chromatic aberration strength
},
vertexShader: `
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = vec4(position.xy, 0.0, 1.0);
}
`,
fragmentShader: `
precision highp float;
varying vec2 vUv;
uniform sampler2D tDiffuse;
uniform sampler2D tSim;
uniform vec2 iResolution;
uniform float amount;
uniform float chromaticAmount;
void main() {
vec2 texel = 1.0 / iResolution;
// Central differences on the height field to estimate normal/gradient
float hC = texture2D(tSim, vUv).r;
float hL = texture2D(tSim, vUv - vec2(texel.x, 0.0)).r;
float hR = texture2D(tSim, vUv + vec2(texel.x, 0.0)).r;
float hD = texture2D(tSim, vUv - vec2(0.0, texel.y)).r;
float hU = texture2D(tSim, vUv + vec2(0.0, texel.y)).r;
// Gradient
vec2 grad = vec2(hR - hL, hU - hD);
// Base distortion offset
vec2 baseOffset = grad * amount;
// Chromatic aberration: sample R, G, B at slightly different offsets
vec2 chromaticOffset = grad * chromaticAmount;
// Red channel - offset in gradient direction
vec2 uvR = vUv + baseOffset + chromaticOffset;
// Green channel - no additional chromatic offset (center)
vec2 uvG = vUv + baseOffset;
// Blue channel - offset opposite to gradient direction
vec2 uvB = vUv + baseOffset - chromaticOffset;
// Clamp all UVs to avoid sampling outside
uvR = clamp(uvR, vec2(0.0), vec2(1.0));
uvG = clamp(uvG, vec2(0.0), vec2(1.0));
uvB = clamp(uvB, vec2(0.0), vec2(1.0));
// Sample each channel separately
float r = texture2D(tDiffuse, uvR).r;
float g = texture2D(tDiffuse, uvG).g;
float b = texture2D(tDiffuse, uvB).b;
gl_FragColor = vec4(r, g, b, 1.0);
}
`
};
// Factory to create/update the simulation
export function createFluidSimulation(renderer, dpr = 1) {
const simScene = new THREE.Scene();
const simCamera = new THREE.OrthographicCamera(-1, 1, 1, -1, 0, 1);
// Fullscreen quad
const quad = new THREE.Mesh(new THREE.PlaneGeometry(2, 2), new THREE.ShaderMaterial({
uniforms: THREE.UniformsUtils.clone(FluidSimShader.uniforms),
vertexShader: FluidSimShader.vertexShader,
fragmentShader: FluidSimShader.fragmentShader,
depthTest: false,
depthWrite: false
}));
simScene.add(quad);
// Create ping-pong targets
const params = {
minFilter: THREE.LinearFilter,
magFilter: THREE.LinearFilter,
format: THREE.RGBAFormat,
type: THREE.UnsignedByteType, // portable and sufficient for this use
depthBuffer: false,
stencilBuffer: false
};
let width = Math.max(2, Math.floor(window.innerWidth * dpr));
let height = Math.max(2, Math.floor(window.innerHeight * dpr));
let rtA = new THREE.WebGLRenderTarget(width, height, params);
let rtB = new THREE.WebGLRenderTarget(width, height, params);
// Initialize empty
renderer.setRenderTarget(rtA);
renderer.clear();
renderer.setRenderTarget(rtB);
renderer.clear();
renderer.setRenderTarget(null);
// Init uniforms
quad.material.uniforms.iResolution.value.set(width, height);
quad.material.uniforms.tPrev.value = rtA.texture;
// Swap helper
function swap() {
const tmp = rtA; rtA = rtB; rtB = tmp;
}
// External API
function update(mouseX, mouseY, strength, timeSec) {
// Update uniforms
quad.material.uniforms.iTime.value = timeSec;
// Mouse: if offscreen (negative), set strength 0
if (mouseX < 0.0 || mouseY < 0.0) {
quad.material.uniforms.mouse.value.set(-1, -1, 0.0);
} else {
quad.material.uniforms.mouse.value.set(mouseX, mouseY, Math.max(0.0, Math.min(1.0, strength)));
}
// Render step: read rtA into shader, write next state into rtB
quad.material.uniforms.tPrev.value = rtA.texture;
renderer.setRenderTarget(rtB);
renderer.render(simScene, simCamera);
renderer.setRenderTarget(null);
// Next frame reads the freshly written state
swap();
}
function getTexture() {
return rtA.texture;
}
function resize(w, h, newDpr = dpr) {
width = Math.max(2, Math.floor(w * newDpr));
height = Math.max(2, Math.floor(h * newDpr));
rtA.setSize(width, height);
rtB.setSize(width, height);
quad.material.uniforms.iResolution.value.set(width, height);
}
return { update, getTexture, resize };
}

121
src/main.js
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@ -1,26 +1,32 @@
import './style.css' import './style.css'
import * as THREE from 'three'; import * as THREE from 'three';
import { SceneLoader } from './sceneLoader.js'; import { SceneLoader } from './sceneLoader.js';
import { createScene, setupLighting, setupControls } from './sceneSetup.js'; import { createScene, setupLighting, setupControls } from './sceneSetup.js';
import { createModelFromPreloaded } from './modelManager.js'; import { createModelFromPreloaded } from './modelManager.js';
import { import {
currentModel, currentModel,
nextModel, nextModel,
mixer, mixer,
nextMixer, nextMixer,
isTransitioning, isTransitioning,
updateTransition, updateTransition,
onMouseScroll, onMouseScroll,
setCurrentModel, setCurrentModel,
setMixer setMixer
} from './transitionManager.js'; } from './transitionManager.js';
import { import {
startBoldRoughnessAnimation, startBoldRoughnessAnimation,
updateBoldRoughnessAnimation, updateBoldRoughnessAnimation,
updateInnovationGlassAnimation updateInnovationGlassAnimation
} from './animationManager.js'; } from './animationManager.js';
// Fluid distortion imports
import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
import { createFluidSimulation, FluidDistortionShader } from './fluidDistortion.js';
// Starfield import
import { createStarfield } from './starfield.js';
// Initialize loader // Initialize loader
const sceneLoader = new SceneLoader(); const sceneLoader = new SceneLoader();
sceneLoader.setLoadingMessage('Preparing Your Experience...'); sceneLoader.setLoadingMessage('Preparing Your Experience...');
@ -30,21 +36,83 @@ const { scene, camera, renderer, composer } = createScene();
setupLighting(scene, camera); setupLighting(scene, camera);
const controls = setupControls(camera, renderer); const controls = setupControls(camera, renderer);
// Create starfield
const starfield = createStarfield(scene);
// Turntable animation settings // Turntable animation settings
const turntableSpeed = 0.5; // Rotation speed (radians per second) const turntableSpeed = 0.5;
// Store preloaded models // Store preloaded models
let preloadedModels = {}; let preloadedModels = {};
// Fluid simulation + distortion pass
const dpr = renderer.getPixelRatio ? renderer.getPixelRatio() : Math.min(window.devicePixelRatio || 1, 2);
const fluid = createFluidSimulation(renderer, dpr);
const distortionPass = new ShaderPass(FluidDistortionShader);
distortionPass.material.uniforms.tSim.value = fluid.getTexture();
distortionPass.material.uniforms.iResolution.value.set(window.innerWidth * dpr, window.innerHeight * dpr);
distortionPass.material.uniforms.amount.value = 0.100;
distortionPass.material.uniforms.chromaticAmount.value = 0.050;
composer.addPass(distortionPass);
// Pointer tracking for both fluid simulation and starfield
const pointer = {
x: -1,
y: -1,
strength: 0.0,
prevX: -1,
prevY: -1,
};
// Mouse coordinates for starfield (normalized device coordinates)
const mouse = new THREE.Vector2();
function toSimPixels(e) {
const rect = renderer.domElement.getBoundingClientRect();
const x = (e.clientX - rect.left) * dpr;
const y = (rect.height - (e.clientY - rect.top)) * dpr;
return { x, y };
}
renderer.domElement.addEventListener('pointermove', (e) => {
const { x, y } = toSimPixels(e);
const dx = (pointer.prevX < 0) ? 0 : Math.abs(x - pointer.prevX);
const dy = (pointer.prevY < 0) ? 0 : Math.abs(y - pointer.prevY);
const speed = Math.min(Math.sqrt(dx * dx + dy * dy) / (8.0 * dpr), 1.0);
pointer.x = x;
pointer.y = y;
pointer.strength = speed * 0.85;
pointer.prevX = x;
pointer.prevY = y;
// Update mouse coordinates for starfield (NDC: -1 to +1)
const rect = renderer.domElement.getBoundingClientRect();
mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;
mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;
}, { passive: true });
renderer.domElement.addEventListener('pointerleave', () => {
pointer.x = -1;
pointer.y = -1;
pointer.strength = 0.0;
// Clear mouse for starfield
mouse.x = -999; // Move off-screen
mouse.y = -999;
}, { passive: true });
// Initialize first scene after all models are loaded // Initialize first scene after all models are loaded
function initializeScene() { function initializeScene() {
console.log('Initializing first scene (bold)'); console.log('Initializing first scene (bold)');
const { model, animMixer } = createModelFromPreloaded('bold', preloadedModels, camera, controls); const { model, animMixer } = createModelFromPreloaded('bold', preloadedModels, camera, controls);
// Use setter functions instead of direct assignment
setCurrentModel(model); setCurrentModel(model);
setMixer(animMixer); setMixer(animMixer);
scene.add(currentModel); scene.add(currentModel);
// Start the roughness animation for bold scene with delay
startBoldRoughnessAnimation(true); startBoldRoughnessAnimation(true);
console.log('Bold scene initialized'); console.log('Bold scene initialized');
} }
@ -72,10 +140,18 @@ function animate() {
nextModel.rotation.y += turntableSpeed * delta; nextModel.rotation.y += turntableSpeed * delta;
} }
// Update animations // Update material animations
updateBoldRoughnessAnimation(); updateBoldRoughnessAnimation();
updateInnovationGlassAnimation(); updateInnovationGlassAnimation();
// Animate stars with cursor interaction
starfield.animateStars(camera, mouse, delta);
// Update fluid sim and refresh distortion pass input
const nowSec = performance.now() / 1000;
fluid.update(pointer.x, pointer.y, pointer.strength, nowSec);
distortionPass.material.uniforms.tSim.value = fluid.getTexture();
controls.update(); controls.update();
composer.render(); composer.render();
} }
@ -84,15 +160,14 @@ function animate() {
async function init() { async function init() {
try { try {
console.log('Starting application initialization'); console.log('Starting application initialization');
// Load all models first
preloadedModels = await sceneLoader.loadAllModels(); preloadedModels = await sceneLoader.loadAllModels();
console.log('All models loaded successfully'); console.log('All models loaded successfully');
// Initialize the first scene
initializeScene(); initializeScene();
// Start the animation loop
animate(); animate();
console.log('Animation loop started'); console.log('Animation loop started');
// Attach scroll event listener
window.addEventListener('wheel', (event) => { window.addEventListener('wheel', (event) => {
onMouseScroll(event, preloadedModels, scene, camera, controls); onMouseScroll(event, preloadedModels, scene, camera, controls);
}, { passive: true }); }, { passive: true });
@ -106,10 +181,18 @@ async function init() {
// Handle window resize // Handle window resize
window.addEventListener('resize', () => { window.addEventListener('resize', () => {
console.log('Window resized'); console.log('Window resized');
camera.aspect = window.innerWidth / window.innerHeight; const w = window.innerWidth;
const h = window.innerHeight;
camera.aspect = w / h;
camera.updateProjectionMatrix(); camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
composer.setSize(window.innerWidth, window.innerHeight); renderer.setSize(w, h);
composer.setSize(w, h);
const pixelRatio = renderer.getPixelRatio ? renderer.getPixelRatio() : Math.min(window.devicePixelRatio || 1, 2);
distortionPass.material.uniforms.iResolution.value.set(w * pixelRatio, h * pixelRatio);
fluid.resize(w, h, pixelRatio);
}); });
// Start the application // Start the application

328
src/starfield.js Normal file
View file

@ -0,0 +1,328 @@
import * as THREE from 'three';
export function createStarfield(scene) {
const starCount = 8000;
const starDistance = 300;
// Create geometry for stars
const starGeometry = new THREE.BufferGeometry();
const starPositions = new Float32Array(starCount * 3);
const starSizes = new Float32Array(starCount);
// Store original positions, current positions, and sizes
const originalPositions = new Float32Array(starCount * 3);
const currentPositions = new Float32Array(starCount * 3);
const originalSizes = new Float32Array(starCount);
const currentSizes = new Float32Array(starCount);
// Generate random positions in a sphere around the scene
for (let i = 0; i < starCount; i++) {
const i3 = i * 3;
const radius = Math.random() * starDistance + 50;
const theta = Math.random() * Math.PI * 2;
const phi = Math.acos(2 * Math.random() - 1);
const x = radius * Math.sin(phi) * Math.cos(theta);
const y = radius * Math.sin(phi) * Math.sin(theta);
const z = radius * Math.cos(phi);
// Store both original and current positions
originalPositions[i3] = x;
originalPositions[i3 + 1] = y;
originalPositions[i3 + 2] = z;
currentPositions[i3] = x;
currentPositions[i3 + 1] = y;
currentPositions[i3 + 2] = z;
starPositions[i3] = x;
starPositions[i3 + 1] = y;
starPositions[i3 + 2] = z;
// Store original and current sizes
const baseSize = Math.random() * 0.2 + 0.1;
originalSizes[i] = baseSize;
currentSizes[i] = baseSize;
starSizes[i] = baseSize;
}
starGeometry.setAttribute('position', new THREE.BufferAttribute(starPositions, 3));
starGeometry.setAttribute('size', new THREE.BufferAttribute(starSizes, 1));
// Star material with size attenuation
const starMaterial = new THREE.PointsMaterial({
color: 0xffffff,
size: 0.3,
sizeAttenuation: true,
transparent: true,
opacity: 0.8,
vertexColors: false
});
const stars = new THREE.Points(starGeometry, starMaterial);
scene.add(stars);
// Distant stars layer
const distantStarCount = 4000;
const distantStarGeometry = new THREE.BufferGeometry();
const distantStarPositions = new Float32Array(distantStarCount * 3);
const distantStarSizes = new Float32Array(distantStarCount);
const distantOriginalPositions = new Float32Array(distantStarCount * 3);
const distantCurrentPositions = new Float32Array(distantStarCount * 3);
const distantOriginalSizes = new Float32Array(distantStarCount);
const distantCurrentSizes = new Float32Array(distantStarCount);
for (let i = 0; i < distantStarCount; i++) {
const i3 = i * 3;
const radius = Math.random() * 200 + starDistance;
const theta = Math.random() * Math.PI * 2;
const phi = Math.acos(2 * Math.random() - 1);
const x = radius * Math.sin(phi) * Math.cos(theta);
const y = radius * Math.sin(phi) * Math.sin(theta);
const z = radius * Math.cos(phi);
distantOriginalPositions[i3] = x;
distantOriginalPositions[i3 + 1] = y;
distantOriginalPositions[i3 + 2] = z;
distantCurrentPositions[i3] = x;
distantCurrentPositions[i3 + 1] = y;
distantCurrentPositions[i3 + 2] = z;
distantStarPositions[i3] = x;
distantStarPositions[i3 + 1] = y;
distantStarPositions[i3 + 2] = z;
// Store original and current sizes for distant stars
const baseSize = Math.random() * 0.1 + 0.05;
distantOriginalSizes[i] = baseSize;
distantCurrentSizes[i] = baseSize;
distantStarSizes[i] = baseSize;
}
distantStarGeometry.setAttribute('position', new THREE.BufferAttribute(distantStarPositions, 3));
distantStarGeometry.setAttribute('size', new THREE.BufferAttribute(distantStarSizes, 1));
const distantStarMaterial = new THREE.PointsMaterial({
color: 0xccccff,
size: 0.15,
sizeAttenuation: true,
transparent: true,
opacity: 0.4
});
const distantStars = new THREE.Points(distantStarGeometry, distantStarMaterial);
scene.add(distantStars);
// Animation parameters
const movementAmplitude = 2;
const repulsionRadius = 400;
const repulsionStrength = 5;
const interpolationSpeed = 5;
// NEW: Cursor brightness parameters
const brightnessRadius = 60; // Radius for size increase effect
const maxSizeMultiplier = 4.0; // Maximum size increase (4x original size)
const sizeInterpolationSpeed = 3.0; // Speed of size changes
// Raycaster for mouse position in 3D space
const raycaster = new THREE.Raycaster();
const mouseWorldPos = new THREE.Vector3();
function animateStars(camera, mouse, deltaTime) {
const time = Date.now() * 0.0003;
// Get mouse position in world space
if (mouse && camera) {
raycaster.setFromCamera(mouse, camera);
// Project mouse to a plane at distance 0 from camera
const distance = 100;
mouseWorldPos.copy(raycaster.ray.direction).multiplyScalar(distance).add(raycaster.ray.origin);
}
// Update close stars
const positions = starGeometry.attributes.position.array;
const sizes = starGeometry.attributes.size.array;
for (let i = 0; i < starCount; i++) {
const i3 = i * 3;
// Get original position
const origX = originalPositions[i3];
const origY = originalPositions[i3 + 1];
const origZ = originalPositions[i3 + 2];
// Add gentle oscillating movement
const offsetX = Math.sin(time + i * 0.01) * movementAmplitude;
const offsetY = Math.cos(time * 0.7 + i * 0.02) * movementAmplitude;
const offsetZ = Math.sin(time * 0.5 + i * 0.015) * movementAmplitude;
let targetX = origX + offsetX;
let targetY = origY + offsetY;
let targetZ = origZ + offsetZ;
// Cursor repulsion
if (mouse) {
const dx = targetX - mouseWorldPos.x;
const dy = targetY - mouseWorldPos.y;
const dz = targetZ - mouseWorldPos.z;
const distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
if (distance < repulsionRadius && distance > 0) {
const force = (1 - distance / repulsionRadius) * repulsionStrength;
const nx = dx / distance;
const ny = dy / distance;
const nz = dz / distance;
targetX += nx * force;
targetY += ny * force;
targetZ += nz * force;
}
}
// Smooth interpolation to target position
const currentX = currentPositions[i3];
const currentY = currentPositions[i3 + 1];
const currentZ = currentPositions[i3 + 2];
const lerpFactor = Math.min(interpolationSpeed * deltaTime, 1.0);
currentPositions[i3] = THREE.MathUtils.lerp(currentX, targetX, lerpFactor);
currentPositions[i3 + 1] = THREE.MathUtils.lerp(currentY, targetY, lerpFactor);
currentPositions[i3 + 2] = THREE.MathUtils.lerp(currentZ, targetZ, lerpFactor);
// Update geometry positions
positions[i3] = currentPositions[i3];
positions[i3 + 1] = currentPositions[i3 + 1];
positions[i3 + 2] = currentPositions[i3 + 2];
// NEW: Calculate size based on cursor proximity
let targetSize = originalSizes[i];
if (mouse) {
const finalX = currentPositions[i3];
const finalY = currentPositions[i3 + 1];
const finalZ = currentPositions[i3 + 2];
const dx = finalX - mouseWorldPos.x;
const dy = finalY - mouseWorldPos.y;
const dz = finalZ - mouseWorldPos.z;
const distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
if (distance < brightnessRadius) {
// Calculate size multiplier based on distance (closer = bigger)
const proximityFactor = 1 - (distance / brightnessRadius);
const sizeMultiplier = 1 + (proximityFactor * (maxSizeMultiplier - 1));
targetSize = originalSizes[i] * sizeMultiplier;
}
}
// Smooth interpolation for size changes
const sizeLerpFactor = Math.min(sizeInterpolationSpeed * deltaTime, 1.0);
currentSizes[i] = THREE.MathUtils.lerp(currentSizes[i], targetSize, sizeLerpFactor);
sizes[i] = currentSizes[i];
}
// Update distant stars (less affected by cursor)
const distantPositions = distantStarGeometry.attributes.position.array;
const distantSizes = distantStarGeometry.attributes.size.array;
for (let i = 0; i < distantStarCount; i++) {
const i3 = i * 3;
const origX = distantOriginalPositions[i3];
const origY = distantOriginalPositions[i3 + 1];
const origZ = distantOriginalPositions[i3 + 2];
// Gentler movement for distant stars
const offsetX = Math.sin(time * 0.5 + i * 0.005) * movementAmplitude * 0.3;
const offsetY = Math.cos(time * 0.3 + i * 0.008) * movementAmplitude * 0.3;
const offsetZ = Math.sin(time * 0.4 + i * 0.006) * movementAmplitude * 0.3;
let targetX = origX + offsetX;
let targetY = origY + offsetY;
let targetZ = origZ + offsetZ;
// Weaker cursor repulsion for distant stars
if (mouse) {
const dx = targetX - mouseWorldPos.x;
const dy = targetY - mouseWorldPos.y;
const dz = targetZ - mouseWorldPos.z;
const distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
if (distance < repulsionRadius * 1.5 && distance > 0) {
const force = (1 - distance / (repulsionRadius * 1.5)) * repulsionStrength * 0.3;
const nx = dx / distance;
const ny = dy / distance;
const nz = dz / distance;
targetX += nx * force;
targetY += ny * force;
targetZ += nz * force;
}
}
// Smooth interpolation for positions
const currentX = distantCurrentPositions[i3];
const currentY = distantCurrentPositions[i3 + 1];
const currentZ = distantCurrentPositions[i3 + 2];
const lerpFactor = Math.min(interpolationSpeed * deltaTime * 0.7, 1.0);
distantCurrentPositions[i3] = THREE.MathUtils.lerp(currentX, targetX, lerpFactor);
distantCurrentPositions[i3 + 1] = THREE.MathUtils.lerp(currentY, targetY, lerpFactor);
distantCurrentPositions[i3 + 2] = THREE.MathUtils.lerp(currentZ, targetZ, lerpFactor);
distantPositions[i3] = distantCurrentPositions[i3];
distantPositions[i3 + 1] = distantCurrentPositions[i3 + 1];
distantPositions[i3 + 2] = distantCurrentPositions[i3 + 2];
// NEW: Size effect for distant stars (weaker)
let targetSize = distantOriginalSizes[i];
if (mouse) {
const finalX = distantCurrentPositions[i3];
const finalY = distantCurrentPositions[i3 + 1];
const finalZ = distantCurrentPositions[i3 + 2];
const dx = finalX - mouseWorldPos.x;
const dy = finalY - mouseWorldPos.y;
const dz = finalZ - mouseWorldPos.z;
const distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
if (distance < brightnessRadius * 1.2) {
// Weaker effect for distant stars
const proximityFactor = 1 - (distance / (brightnessRadius * 1.2));
const sizeMultiplier = 1 + (proximityFactor * (maxSizeMultiplier * 0.5 - 1));
targetSize = distantOriginalSizes[i] * sizeMultiplier;
}
}
// Smooth interpolation for distant star sizes
const sizeLerpFactor = Math.min(sizeInterpolationSpeed * deltaTime * 0.8, 1.0);
distantCurrentSizes[i] = THREE.MathUtils.lerp(distantCurrentSizes[i], targetSize, sizeLerpFactor);
distantSizes[i] = distantCurrentSizes[i];
}
// Mark geometry for update
starGeometry.attributes.position.needsUpdate = true;
starGeometry.attributes.size.needsUpdate = true;
distantStarGeometry.attributes.position.needsUpdate = true;
distantStarGeometry.attributes.size.needsUpdate = true;
// Subtle twinkling
starMaterial.opacity = 0.6 + Math.sin(time * 2) * 0.2;
distantStarMaterial.opacity = 0.3 + Math.sin(time * 1.5 + 1) * 0.1;
}
return {
stars,
distantStars,
animateStars,
starMaterial,
distantStarMaterial
};
}