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Fuild_ParticleCurlNoise2D_GPGPU.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fuild_ParticleCurlNoise2D_GPGPU</title>
</head>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
background-color: black;
}
.monitor {
position: fixed;
top:0;
left:0;
z-index: 9999;
}
.monitor button {
padding : 1rem 2rem;
}
</style>
<body>
</body>
<div id="canvas"></div>
<div class="monitor">
<button id="stop">stop delta</button>
<button id="start">start</button>
</div>
<script type="importmap">
{
"imports": {
"three": "./three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script id="frag_Pos_GPGPU" type="x-shader/x-fragment">
uniform float time;
uniform float delta;
uniform float forceMouse;
uniform sampler2D fuildMap;
uniform vec2 sizeView;
uniform bool stopDelta;
uniform bool start;
vec2 rotate(vec2 v, float a) {
float s = sin(a);
float c = cos(a);
mat2 m = mat2(c, -s, s, c);
return m * v;
}
float random (vec2 st) {
return fract(sin(dot(st.xy,
vec2(12.9898,78.233)))*
43758.5453123);
}
#define PI 3.141592653
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec4 tmpPos = texture2D( texturePosition, uv );
vec3 posSelf = tmpPos.xyz;
vec3 velSelf = texture2D( textureVelocity, uv ).xyz;
vec3 extraSelf = texture2D( textureExtra, uv ).xyz;
float life = tmpPos.w;
float maxYSet = 2.;
float activeOnYSet = 1.7;
if(posSelf.y > maxYSet) {
posSelf.y = -maxYSet;
}
if (posSelf.y >= activeOnYSet && posSelf.y < maxYSet) {
life = 1.0 - ((posSelf.y - activeOnYSet) / 2.0);
} else if (posSelf.y >= maxYSet) {
life = 0.0;
//posSelf.y = -maxYSet;
} else if (posSelf.y >= -maxYSet && posSelf.y < -activeOnYSet) {
life = (posSelf.y + maxYSet) / 2.0;
}
float decreaseVel = 0.1;
if(stopDelta) decreaseVel = 0.;
posSelf += velSelf * decreaseVel;
vec2 uvPos = vec2(
posSelf.x / sizeView.x + 0.5,
posSelf.y / sizeView.y + 0.5
);
vec2 velFuild = texture2D(fuildMap,uvPos).xy;
posSelf += vec3(velFuild,posSelf.z) * 1.;
if(posSelf.y > sizeView.y) {
posSelf.y = -sizeView.y;
}else if(posSelf.y < -sizeView.y) {
posSelf.y = -sizeView.y;
}
if(posSelf.x > 2.) {
posSelf.x = -2.;
}else if(posSelf.x < -2.) {
posSelf.x = -2.;
}
if(posSelf.z > 1.) {
posSelf.z = 0.;
}else if(posSelf.z < -1.) {
posSelf.z = 0.;
}
if(!start) posSelf = tmpPos.xyz;
gl_FragColor = vec4( posSelf, 1. );
}
</script>
<script id="frag_Vel_GPGPU" type="x-shader/x-fragment">
uniform float time;
uniform float delta;
uniform vec2 mouse;
uniform bool stopDelta;
uniform bool start;
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; // 2.0*C.x = 1/3 = C.y
vec3 x3 = x0 - D.yyy; // -1.0+3.0*C.x = -0.5 = -D.y
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 ));
float n_ = 0.142857142857; // 1.0/7.0
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z); // mod(p,7*7)
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_ ); // mod(j,N)
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));
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) ) );
}
vec3 snoiseVec3( vec3 x ){
float s = snoise(vec3( x ));
float s1 = snoise(vec3( x.y - 19.1 , x.z + 33.4 , x.x + 47.2 ));
float s2 = snoise(vec3( x.z + 74.2 , x.x - 124.5 , x.y + 99.4 ));
vec3 c = vec3( s , s1 , s2 );
return c;
}
vec3 curlNoise( vec3 p ){
const float e = .1;
vec3 dx = vec3( e , 0.0 , 0.0 );
vec3 dy = vec3( 0.0 , e , 0.0 );
vec3 dz = vec3( 0.0 , 0.0 , e );
vec3 p_x0 = snoiseVec3( p - dx );
vec3 p_x1 = snoiseVec3( p + dx );
vec3 p_y0 = snoiseVec3( p - dy );
vec3 p_y1 = snoiseVec3( p + dy );
vec3 p_z0 = snoiseVec3( p - dz );
vec3 p_z1 = snoiseVec3( p + dz );
float x = p_y1.z - p_y0.z - p_z1.y + p_z0.y;
float y = p_z1.x - p_z0.x - p_x1.z + p_x0.z;
float z = p_x1.y - p_x0.y - p_y1.x + p_y0.x;
const float divisor = 1.0 / ( 2.0 * e );
return normalize( vec3( x , y , z ) * divisor );
}
vec2 rotate(vec2 v, float a) {
float s = sin(a);
float c = cos(a);
mat2 m = mat2(c, -s, s, c);
return m * v;
}
#define PI 3.141592653
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec3 posSelf = texture2D( texturePosition, uv ).xyz;
vec3 velSelf = texture2D( textureVelocity, uv ).xyz;
vec3 pvelSelf = velSelf;
vec3 extraSelf = texture2D( textureExtra, uv ).xyz;
float posOffset = mix(posSelf.b, 1.0, .9);
vec3 acc = curlNoise(posSelf * posOffset + delta * 0.5);
acc.y += .5;
acc.y *= 0.85;
float speedOffset = mix(extraSelf.g, 1.0, .9);
// rotation
vec2 dir = normalize(posSelf.xz);
dir = rotate(dir, PI * 0.75);
acc.xz += dir * 0.7; // > 4 to have tornal
velSelf += acc * .01 * speedOffset;
float decrease = .96;
if(stopDelta) decrease = 0.;
velSelf *= decrease;
if(!start) velSelf = pvelSelf;
gl_FragColor = vec4( velSelf,1.);
}
</script>
<script id="frag_Extra_GPGPU" type="x-shader/x-fragment">
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec4 extra = texture2D( textureExtra, uv );
gl_FragColor = vec4(extra.rgb ,1.);
}
</script>
<script type="module">
import * as THREE from "three";
import Renderer from "./fuild/modules_curlNoise/Renderer.js";
import Simulation from "./fuild/modules_curlNoise/Simulation.js";
import Mouse from "./fuild/modules_curlNoise/Mouse.js";
import { calcSizeFitCamPerspective } from './utils/calcSizeFitCamPerspective.js'
import { GPUComputationRenderer } from 'three/addons/GPUComputationRenderer.js';
import { OrbitControls } from 'three/addons/OrbitControls.js';
import {curl4Noise} from './glsl/curl4Noise.js'
let controlsMain
//GPGPU
let gpuCompute
let widthTexture = 258
let velocityVariable, positionVariable, extraVariable
let positionUniforms, velocityUniforms, extraUniforms
let now, last, delta
let wView = window.innerWidth
let hView = window.innerHeight
let ratioView = window.innerWidth / window.innerHeight
let PointMat;
function initComputeRenderer(renderer) {
gpuCompute = new GPUComputationRenderer(widthTexture, widthTexture, renderer);
const dtPosition = gpuCompute.createTexture();
const dtVelocity = gpuCompute.createTexture();
const dtExtra = gpuCompute.createTexture();
fillPosTexture(dtPosition);
fillVelTexture(dtVelocity);
fillExtraTexture(dtExtra)
velocityVariable = gpuCompute.addVariable('textureVelocity', document.getElementById('frag_Vel_GPGPU').textContent, dtVelocity);
positionVariable = gpuCompute.addVariable('texturePosition', document.getElementById('frag_Pos_GPGPU').textContent, dtPosition);
extraVariable = gpuCompute.addVariable('textureExtra', document.getElementById('frag_Extra_GPGPU').textContent, dtExtra);
velocityVariable.wrapS = THREE.RepeatWrapping;
velocityVariable.wrapT = THREE.RepeatWrapping;
positionVariable.wrapS = THREE.RepeatWrapping;
positionVariable.wrapT = THREE.RepeatWrapping;
extraVariable.wrapS = THREE.RepeatWrapping;
extraVariable.wrapT = THREE.RepeatWrapping;
gpuCompute.setVariableDependencies(velocityVariable, [positionVariable, velocityVariable, extraVariable]);
gpuCompute.setVariableDependencies(positionVariable, [positionVariable, velocityVariable, extraVariable]);
gpuCompute.setVariableDependencies(extraVariable, [positionVariable, velocityVariable, extraVariable]);
positionUniforms = positionVariable.material.uniforms;
velocityUniforms = velocityVariable.material.uniforms;
extraUniforms = extraVariable.material.uniforms;
positionUniforms['time'] = { value: 0.0 };
positionUniforms['sizeView'] = { value: new THREE.Vector2(0, 0) };
positionUniforms['delta'] = { value: 0.0 };
velocityUniforms['time'] = { value: 0.0 };
velocityUniforms['delta'] = { value: 0.0 };
extraUniforms['time'] = { value: 0.0 };
extraUniforms['delta'] = { value: 0.0 };
positionUniforms['fuildMap'] = {value : null}
velocityUniforms['fuildMap'] = {value : null}
positionUniforms['start'] = {value : false}
velocityUniforms['start'] = { value: false };
positionUniforms['stopDelta'] = {value : false}
velocityUniforms['stopDelta'] = { value: false };
positionUniforms['forceMouse'] = { value: 0.0 };
positionUniforms['projectionMatrix'] = { value: new THREE.Matrix4() };
positionUniforms['viewMatrix'] = { value: new THREE.Matrix4()};
const error = gpuCompute.init();
if (error !== null) {
console.error(error);
}
}
function fillPosTexture(texture) {
const arrT = texture.image.data;
for (let k = 0, kl = arrT.length; k < kl; k += 4) {
const x = Math.random() * 2 - 1;
const y = Math.random() * 2 - 1;
const z = Math.random() * 2 - 1;
let vp = new THREE.Vector3(x, y, z)
vp.multiplyScalar(0.4)
arrT[k + 0] = vp.x
arrT[k + 1] = vp.y
arrT[k + 2] = vp.z
arrT[k + 3] = 1
}
}
function fillVelTexture(texture) {
const arrT = texture.image.data;
for (let k = 0, kl = arrT.length; k < kl; k += 4) {
const x = Math.random() * 2 - 1;
const y = Math.random() * 2 - 1;
const z = Math.random() * 2 - 1;
let vv = new THREE.Vector3(x, y, z)
arrT[k + 0] = vv.x
arrT[k + 1] = vv.y
arrT[k + 2] = vv.z
arrT[k + 3] = 1
}
}
function fillExtraTexture(texture) {
const arrT = texture.image.data;
for (let k = 0, kl = arrT.length; k < kl; k += 4) {
const x = Math.random() * 2 - 1;
const y = Math.random() * 2 - 1;
const z = Math.random() * 2 - 1;
arrT[k + 0] = x
arrT[k + 1] = y
arrT[k + 2] = z
arrT[k + 3] = 1
}
}
Renderer.init();
Mouse.init();
const buttonStop = document.getElementById("stop")
const buttonStart = document.getElementById("start")
buttonStop.onclick = () => {
velocityUniforms['stopDelta'].value = !velocityUniforms['stopDelta'].value;
positionUniforms['stopDelta'].value = !positionUniforms['stopDelta'].value;
};
buttonStart.onclick = () => {
velocityUniforms['start'].value = !velocityUniforms['start'].value;
positionUniforms['start'].value = !positionUniforms['start'].value;
};
initComputeRenderer(Renderer.renderer)
const scene = new THREE.Scene();
scene.background = 0x000000
const light = new THREE.AmbientLight(0x404040); // soft white light
scene.add(light);
const directionalLight = new THREE.DirectionalLight(0xffffff, 2.5);
scene.add(directionalLight);
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 2.5
//controlsMain = new OrbitControls(camera, Renderer.renderer.domElement);
const [widthFit, heightFit] = calcSizeFitCamPerspective(camera)
positionUniforms['sizeView'] = { value: new THREE.Vector2(widthFit, heightFit) };
const simulation = new Simulation({
options: {
iterations_poisson: 1,
iterations_viscous: 32,
mouse_force: 10,
resolution: 0.3,
cursor_size: 20,
viscous: 30,
isBounce: false,
dt: 0.9,
isViscous: false,
BFECC: false
}
});
const textureImg = new THREE.TextureLoader().load('textures/cat.jpg');
initPoint()
function initPoint() {
const gridSize = widthTexture; // Số điểm theo mỗi chiều
const spacing = 1.0 / (gridSize - 1); // Khoảng cách giữa các điểm
// Tạo dữ liệu điểm cho lưới
const vertices = [];
const extra = [];
const uvs = [];
const radius = 1.0;
for (let x = 0; x < gridSize; x++) {
for (let y = 0; y < gridSize; y++) {
// Tính toán tọa độ UV cho điểm
const u = x * spacing;
const v = y * spacing;
//// rando
// let posX = u * 2.0 - 1.0;
// let posY = v * 2.0 - 1.0;
// vertices.push(posX * 2., posY * 2., 0);
//// sphere
const theta = u * Math.PI * 2; // Góc xoay quanh trục Y (longitude)
const phi = v * Math.PI; // Góc từ trên xuống dưới (latitude)
// Tính toán tọa độ x, y, z trên bề mặt hình cầu
let posX = radius * Math.sin(phi) * Math.cos(theta);
let posY = radius * Math.sin(phi) * Math.sin(theta);
let posZ = radius * Math.cos(phi);
vertices.push(posX, posY, posZ);
let extraX = Math.random() * 2 - 1
let extraY = Math.random() * 2 - 1
extra.push(extraX, extraY, 0);
uvs.push(u, v);
}
}
const PointGeo = new THREE.BufferGeometry();
const positionAttribute = new THREE.BufferAttribute(new Float32Array(vertices), 3);
const extraAttribute = new THREE.BufferAttribute(new Float32Array(extra), 3);
const uvAttribute = new THREE.BufferAttribute(new Float32Array(uvs), 2);
PointGeo.setAttribute('position', positionAttribute);
PointGeo.setAttribute('extra', extraAttribute);
PointGeo.setAttribute('uv', uvAttribute);
const vertexShader = `
precision highp float;
uniform float time;
uniform sampler2D fuildMap;
uniform sampler2D fuildPress;
uniform sampler2D tPos_gpu;
uniform sampler2D tVel_gpu;
uniform float speedmouse;
uniform vec2 sizeView;
uniform vec2 tSize;
varying vec2 vUv;
varying vec3 vPos;
varying vec2 vFuild;
${curl4Noise}
void main() {
vec2 uvT = vec2(
mod(float(gl_InstanceID), tSize.x) / tSize.x, // Tính chỉ số cột
floor(float(gl_InstanceID) / tSize.x) / tSize.y // Tính chỉ số hàng
);
vec3 posgpu = texture2D(tPos_gpu,uv).xyz;
vec3 pos = posgpu;
vec2 uvPos = vec2(
pos.x / sizeView.x + 0.5,
pos.y / sizeView.y + 0.5
);
vec2 velfuild = texture2D(fuildMap,uvPos).xy;
gl_Position = projectionMatrix * modelViewMatrix * vec4(vec3(pos.xy,0.), 1.0);
vUv = uvPos;
vPos = pos;
vFuild = 1.-velfuild;
gl_PointSize = max(2.,200. * abs(velfuild.y - velfuild.x));
}
`;
const fragmentShader = `
varying vec3 vPos;
varying vec2 vFuild;
varying vec2 vUv;
uniform sampler2D fuildMap;
uniform sampler2D fuildPress;
vec3 pal( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d )
{
return a + b*cos( 6.28318*(c*t+d) );
}
void main() {
vec2 vel = texture2D(fuildMap,vUv).xy;
vec2 press = texture2D(fuildPress,vUv).xy;
float len = length(vel);
vec2 velO = vel * 0.5 + 0.5;
vec3 colVel = pal( length(vel) * 10.2, vec3(0.5,0.5,0.5),vec3(0.5,0.5,0.5),vec3(1.0,1.0,0.5),vec3(0.8,0.90,0.30) );
gl_FragColor = vec4(colVel ,1.);
}
`
PointMat = new THREE.ShaderMaterial({
vertexShader: vertexShader,
fragmentShader: fragmentShader,
transparent: true,
depthWrite: false,
blendSrcAlpha: 1,
uniforms: {
speedmouse:{
value:0
},
time: {
value: 0
},
fuildMap: {
value: simulation.fbos.vel_0.texture
},
fuildPress: {
value: simulation.fbos.pressure_1.texture
},
sizeView: {
value: new THREE.Vector2(widthFit, heightFit)
},
tPos_gpu :{value:null},
tVel_gpu :{value:null},
tSize:{value: new THREE.Vector2(widthTexture,widthTexture)}
}
});
let points = new THREE.Points(PointGeo, PointMat);
let planeMat = new THREE.ShaderMaterial({
vertexShader : `
varying vec2 vUv;
void main() {
gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
vUv = uv;
}
`,
fragmentShader : `
varying vec2 vUv;
uniform sampler2D fuildMap;
uniform sampler2D externalForce;
vec3 pal( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d )
{
return a + b*cos( 6.28318*(c*t+d) );
}
void main() {
vec3 force = texture2D(externalForce,vUv).xyz;
vec3 vel = texture2D(fuildMap,vUv).xyz;
float len = length(vel);
vel = vel * 0.5 + 0.5;
vec3 colVel = pal((vel.y+vel.x) * 58.2, vec3(0.5,0.5,0.5),vec3(0.5,0.5,0.5),vec3(1.0,1.0,0.5),vec3(0.8,0.90,0.30) );
vec3 color = vec3(vel.x, vel.y, 1.0);
color = mix(vec3(1.0), colVel, len);
gl_FragColor = vec4(1.-color,1.);
}
`,
uniforms: {
externalForce : {
value : simulation.externalForce.props.output.texture
},
fuildMap: {
value: simulation.fbos.vel_0.texture
},
fuildPress: {
value: simulation.fbos.pressure_1.texture
},
},
wireframe:false,
transparent:true,
blending:THREE.AdditiveBlending,
})
let planeCheck = new THREE.Mesh(
new THREE.PlaneGeometry(widthFit,heightFit),
planeMat,
)
let box = new THREE.Mesh(
new THREE.BoxGeometry(2,2,2),
new THREE.MeshBasicMaterial({color:'blue',transparent:true,opacity:1})
)
scene.add(points)
// scene.add(planeCheck)
}
function runGPGPU() {
positionUniforms['time'].value = now / 1000;
positionUniforms['delta'].value = delta;
velocityUniforms['time'].value = now / 1000;
velocityUniforms['delta'].value = delta;
positionUniforms['fuildMap'].value = simulation.fbos.vel_0.texture
gpuCompute.compute();
const texturePosOut = gpuCompute.getCurrentRenderTarget(positionVariable).texture;
const textureVelOut = gpuCompute.getCurrentRenderTarget(velocityVariable).texture;
if (PointMat) {
PointMat.uniforms.tPos_gpu.value = texturePosOut
PointMat.uniforms.tVel_gpu.value = textureVelOut
}
}
Renderer.renderer.setAnimationLoop(animate);
function animate() {
Mouse.update();
Renderer.update();
simulation.update()
runGPGPU()
Renderer.renderer.setRenderTarget(null);
Renderer.renderer.render(scene, camera);
PointMat.uniforms.time.value = Renderer.time
PointMat.uniforms.speedmouse.value = simulation.externalForce.speed
positionUniforms['forceMouse'] = { value: simulation.externalForce.speed };
// positionUniforms['projectionMatrix'] = { value: controlsMain.object.projectionMatrix };
// positionUniforms['viewMatrix'] = { value: controlsMain.object.matrixWorldInverse};
// PointMat.uniforms.externalForce.value = simulation.externalForce.props.output.texture
}
</script>
</html>