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DepthTexture_FBO_GPGPU.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Depth And GPGGU</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
}
.note {
position:fixed;
top:50px;
left:50%;
width:100%;
height:100px;
color:rgb(255, 255, 255);
font-size:.5rem;
z-index: 99;
}
</style>
<body>
<div class="note">
Now just use ping pong texture by gpgpu , so new solution is merge pos and vel texture to 1 , and progress it by cluster
</div>
<div id="canvas"></div>
<script id="viewDf-vert" type="x-shader/x-vertex">
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
}
</script>
<script id="viewDepth-frag" type="x-shader/x-fragment">
#include <packing>
varying vec2 vUv;
uniform sampler2D tNormalFont;
uniform sampler2D tDepthFont;
uniform sampler2D tNormalBack;
uniform sampler2D tDepthBack;
uniform float cameraNear;
uniform float cameraFar;
// Function to convert depth texture value to linear depth
float getLinearDepth(float depth) {
float z = depth * 2.0 - 1.0; // Convert to NDC
return (2.0 * cameraNear * cameraFar) / (cameraFar + cameraNear - z * (cameraFar - cameraNear));
}
float readDepth( sampler2D depthSampler, vec2 coord ) {
float fragCoordZ = texture2D( depthSampler, coord ).x;
float viewZ = perspectiveDepthToViewZ( fragCoordZ, cameraNear, cameraFar );
return viewZToOrthographicDepth( viewZ, cameraNear, cameraFar );
}
float getEnhanceDepthFromNormal(sampler2D depthTexture,sampler2D normalTexture,float intensityDepth,float intensityNormal) {
float depth = texture2D(depthTexture, vUv).r;
vec3 normal = texture2D(normalTexture, vUv).rgb;
// normal = normalize(normal * 2.0 - 1.0); // Chuyển normal từ [0, 1] sang [-1, 1]
// Tăng cường độ sâu dựa trên giá trị của normal
float normalVal = dot(normal, vec3(0.0, 0.0, 1.0)); // So với hướng z
// Điều chỉnh cường độ của normal
float outEnhancedDepth = (1.-depth) * intensityDepth + normalVal * intensityNormal;
// Đảm bảo giá trị depth nằm trong khoảng [0, 1]
outEnhancedDepth = clamp(outEnhancedDepth, 0.0, 1.0);
return outEnhancedDepth;
}
void main() {
//float depth = readDepth( tDepthFont, vUv );
vec3 outD = vec3(getEnhanceDepthFromNormal(tDepthBack,tNormalBack,1.,0.3));
if(vUv.x < 0.01 || vUv.y < 0.01 || vUv.x > 0.99 || vUv.y > 0.99 ) {
outD = vec3(1.,0.,0.);
}
gl_FragColor.rgb = outD;
gl_FragColor.a = 1.0;
}
</script>
<script id="viewFbo1-frag" type="x-shader/x-fragment">
#include <packing>
varying vec2 vUv;
uniform sampler2D tNormalFont;
uniform sampler2D tNormalBack;
void main() {
vec3 diffuse = texture2D( tNormalFont, vUv ).rgb;
if (diffuse == vec3(0.0, 0.0, 0.0)) {
diffuse = vec3(1.0, 1.0, 1.0); // Chuyển thành màu trắng
}
if(vUv.x < 0.01 || vUv.y < 0.01 || vUv.x > 0.99 || vUv.y > 0.99 ) {
diffuse.xyz = vec3(1.,0.,0.);
}
gl_FragColor.rgb = 1. - diffuse;
gl_FragColor.a = 1.0;
}
</script>
<script id="viewGPGPU_Pos-frag" type="x-shader/x-fragment">
varying vec2 vUv;
uniform sampler2D tPos;
void main() {
vec4 outColor = texture2D( tPos, vUv );
if(vUv.x < 0.01 || vUv.y < 0.01 || vUv.x > 0.99 || vUv.y > 0.99 ) {
outColor.xyz = vec3(1.,0.,0.);
}
gl_FragColor = vec4(outColor.xyz,1.);
}
</script>
<script id="viewGPGPU_Vel-frag" type="x-shader/x-fragment">
varying vec2 vUv;
uniform sampler2D tVel;
void main() {
vec4 outColor = texture2D( tVel, vUv );
if(vUv.x < 0.01 || vUv.y < 0.01 || vUv.x > 0.99 || vUv.y > 0.99 ) {
outColor.xyz = vec3(1.,0.,0.);
}
gl_FragColor = vec4(outColor.xyz ,1.);
}
</script>
<script id="viewGPGPU_Extra-frag" type="x-shader/x-fragment">
varying vec2 vUv;
uniform sampler2D tExtra;
void main() {
vec4 outColor = texture2D( tExtra, vUv );
if(vUv.x < 0.01 || vUv.y < 0.01 || vUv.x > 0.99 || vUv.y > 0.99 ) {
outColor.xyz = vec3(1.,0.,0.);
}
gl_FragColor = vec4(outColor.xyz ,1.);
}
</script>
<script id="frag_Pos_GPGPU" type="x-shader/x-fragment">
uniform float time;
uniform float delta;
uniform sampler2D tNormalFont;
uniform sampler2D tDepthFont;
uniform sampler2D tNormalBack;
uniform sampler2D tDepthBack;
uniform mat4 shadowMatrix0;
uniform mat4 shadowMatrix1;
uniform mat4 projInvert0;
uniform mat4 projInvert1;
uniform mat4 viewInvert0;
uniform mat4 viewInvert1;
float rand(vec2 co){
return fract(sin(dot(co, vec2(12.9898, 78.233))) * 43758.5453);
}
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 );
}
float getDistToCamera(mat4 shadowMatrix, sampler2D textureNormal, vec3 position, mat4 invertProj, mat4 invertView, sampler2D textureDepth, inout float outside, inout vec3 normal) {
vec4 vShadowCoord = shadowMatrix * vec4(position, 1.0);
vec4 shadowCoord = vShadowCoord / vShadowCoord.w;
vec2 uvS = shadowCoord.xy;
vec4 color = texture2D(textureNormal, vec2(uvS.x,1.-uvS.y));
if(color.a <= 0.0) {
outside = 0.0;
}
float depth = texture2D(textureDepth, vec2(uvS.x,1.-uvS.y)).r;
float depthSort = 1.-depth;
float z = (depth) * 2.0 - 1.0;
vec4 clipSpacePosition = vec4(uvS * 2.0 - 1.0, z, 1.0);
vec4 viewSpacePosition = invertProj * clipSpacePosition;
viewSpacePosition /= viewSpacePosition.w;
vec4 worldSpacePosition = invertView * viewSpacePosition;
normal = color.rgb * 2.0 - 1.0;
return worldSpacePosition.z;
}
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec4 tmpPos = texture2D( texturePosition, uv );
vec3 posSelf = tmpPos.xyz;
vec3 posSelfVersionRefect = tmpPos.xyz;
vec3 velSelf = texture2D( textureVelocity, uv ).xyz;
vec3 extraSelf = texture2D( textureExtra, uv ).xyz;
float dist = length(posSelf);
float radius = 2.0;
float lifeCircle = ((radius - dist)/200.) * 1. + .02 * 0.;
float life = 1.;
float o0 = 1.0;
float o1 = 1.0;
const float lifeDecrease = 0.0;
vec3 n0, n1, n;
n = vec3(0.0);
float z0 = getDistToCamera(shadowMatrix0, tNormalFont, posSelf, projInvert0, viewInvert0, tDepthFont, o0, n0);
float z1 = getDistToCamera(shadowMatrix1, tNormalBack, posSelf, projInvert1, viewInvert1, tDepthBack, o1, n1);
float outside = o0 * o1;
if(outside > 0.5) {
if(posSelf.z > z0) {
posSelf.z = z0;
life = 1.;
} else if(posSelf.z < z1) {
posSelf.z = z1;
life = 1.;
} else {
life = 0.;
}
}else {
life = 0.;
}
posSelfVersionRefect += velSelf * delta;
float posOffset = mix(extraSelf.x, 1.0, .1) * 0.25;
float speedOffset = mix(extraSelf.y, 1.0, .25);
vec3 acc = curlNoise(posSelf * speedOffset + delta);
acc += 0.2;
acc *= 0.01;
bool openReflect = true;
if (dist > radius && openReflect == true) {
acc = vec3(0.);
}
vec3 total = velSelf * delta + acc ;
posSelf += total ;
gl_FragColor = vec4( posSelf, life );
}
</script>
<script id="frag_Vel_GPGPU" type="x-shader/x-fragment">
uniform float time;
uniform float delta;
uniform sampler2D tNormalFont;
uniform sampler2D tDepthFont;
uniform sampler2D tNormalBack;
uniform sampler2D tDepthBack;
uniform mat4 shadowMatrix0;
uniform mat4 shadowMatrix1;
uniform mat4 projInvert0;
uniform mat4 projInvert1;
uniform mat4 viewInvert0;
uniform mat4 viewInvert1;
float rand(vec2 co){
return fract(sin(dot(co, vec2(12.9898, 78.233))) * 43758.5453);
}
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 );
}
float getDistToCamera(mat4 shadowMatrix, sampler2D textureNormal, vec3 position, mat4 invertProj, mat4 invertView, sampler2D textureDepth, inout float outside, inout vec3 normal) {
vec4 vShadowCoord = shadowMatrix * vec4(position, 1.0);
vec4 shadowCoord = vShadowCoord / vShadowCoord.w;
vec2 uvS = shadowCoord.xy;
vec4 color = texture2D(textureNormal, vec2(uvS.x,1.-uvS.y));
if(color.a <= 0.0) {
outside = 0.0;
}
float depth = texture2D(textureDepth, vec2(uvS.x,1.-uvS.y)).r;
float depthSort = 1.-depth;
float z = (depth) * 2.0 - 1.0;
vec4 clipSpacePosition = vec4(uvS * 2.0 - 1.0, z, 1.0);
vec4 viewSpacePosition = invertProj * clipSpacePosition;
viewSpacePosition /= viewSpacePosition.w;
vec4 worldSpacePosition = invertView * viewSpacePosition;
normal = color.rgb * 2.0 - 1.0;
return worldSpacePosition.z;
}
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec3 posSelf = texture2D( texturePosition, uv ).xyz;
vec3 velSelf = texture2D( textureVelocity, uv ).xyz;
vec3 extraSelf = texture2D( textureExtra, uv ).xyz;
float dist = length(posSelf);
float radius = 2.0;
vec3 sVel = vec3(0.);
// surface
float posOffset = mix(extraSelf.x, 1.0, .1) * 0.85;
float speedOffset = mix(extraSelf.y, 1.0, .25);
vec3 acc = curlNoise(posSelf * posOffset + delta);
float o0 = 1.0;
float o1 = 1.0;
const float lifeDecrease = 0.0;
vec3 n0, n1, n;
n = vec3(0.0);
float z0 = getDistToCamera(shadowMatrix0, tNormalFont, posSelf, projInvert0, viewInvert0, tDepthFont, o0, n0);
float z1 = getDistToCamera(shadowMatrix1, tNormalBack, posSelf, projInvert1, viewInvert1, tDepthBack, o1, n1);
float outside = o0 * o1;
float d0 = posSelf.z - z0;
float d1 = posSelf.z - z1;
n = d0 < d1 ? n0 : n1;
vec3 dir = normalize(posSelf);
if(outside > 0.5) {
if(posSelf.z > z0) {
n = n0;
} else if(posSelf.z < z1) {
n = n1;
} else {
}
}else{
acc -= dir * 3.0;
}
acc -= n * 1.2 * speedOffset;
//sVel += acc * 0.05;
const float decrease = 1.;
sVel *= decrease;
bool openReflect = true;
if (dist > radius && openReflect == true) {
// set vel = 0
sVel = vec3(0.);
// tính pháp tuyến tại pos
vec3 normalPos = normalize(posSelf);
// tính vec đảo ngược dựa trên pos và pháp tuyến
vec3 reflectedVelocity = reflect(posSelf, normalPos);
// sau khi vel = 0 , cập nhật vel mới
sVel = reflectedVelocity ;
}else{
sVel = velSelf;
}
gl_FragColor = vec4( sVel,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="importmap">
{
"imports": {
"three": "./three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/stats.module.js';
import { GUI } from 'three/addons/lil-gui.module.min.js';
import { OBJLoader } from 'three/addons/OBJLoader.js';
import { DRACOLoader } from 'three/addons/DRACOLoader.js';
import { GPUComputationRenderer } from 'three/addons/GPUComputationRenderer.js';
import { OrbitControls } from 'three/addons/OrbitControls.js';
import { radixSort } from 'three/addons/SortUtils.js';
//glsl
import { curl4Noise } from './glsl/curl4Noise.js'
import { getDisFromDepth } from './glsl/getDisFromDepth.js'
//MAIN SCENE
let renderer, controls, stats, cameraMain, sceneDisplay;
//MONITOR
let sceneMonitor, camMonitor, points, PointMat;
let viewFBODepth_Mat, viewFboNormal_Mat, viewGPGPU_Pos,viewGPGPU_Vel,viewGPGPU_Extra
let loaderObjModel
//UTILS
let now,last,delta
let wView = window.innerWidth
let hView = window.innerHeight
let ratioView = window.innerWidth / window.innerHeight
let marginScissor = 2
//FBO DEPTH
//common
let sceneFboDepth
//fbo target
let FboTarget_DepthFont,FboTarget_DepthBack
//cam fbo
let pointSource0,pointSource1
let cameraFboDepthFont,cameraFboDepthBack
let shadowMatrix0,projInvert0,viewInvert0
let shadowMatrix1,projInvert1,viewInvert1
//GPGPU
let gpuCompute
let widthTexture = 258
let velocityVariable, positionVariable,extraVariable
let positionUniforms,velocityUniforms,extraUniforms
//CONFIG DEPTH RENDER
const params = {
format: THREE.DepthFormat,
type: THREE.FloatType,
samples: 0,
};
const formats = { DepthFormat: THREE.DepthFormat, DepthStencilFormat: THREE.DepthStencilFormat };
const types = { UnsignedShortType: THREE.UnsignedShortType, UnsignedIntType: THREE.UnsignedIntType, FloatType: THREE.FloatType };
init();
function init() {
loaderObjModel = new OBJLoader();
renderer = new THREE.WebGLRenderer({alpha: true});
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(wView, hView);
renderer.setAnimationLoop(animate);
const canvasDom = document.getElementById("canvas")
canvasDom.appendChild(renderer.domElement);
//
stats = new Stats();
document.body.appendChild(stats.dom);
cameraMain = new THREE.PerspectiveCamera(70, wView / hView, 0.01, 400);
cameraMain.position.z = 4;
controls = new OrbitControls(cameraMain, renderer.domElement);
controls.enableDamping = true;
sceneDisplay = new THREE.Scene();
const ambienLight = new THREE.AmbientLight( 0x404040 ); // soft white light
sceneDisplay.add( ambienLight );
const directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
sceneDisplay.add( directionalLight )
const axesHelper = new THREE.AxesHelper( 5 );
// sceneDisplay.add( axesHelper );
initViewDisplay()
initComputeRenderer()
initFboDepthTexture();
initSceneFboDepth();
if(wView > 568) initViewMonitor()
onWindowResize();
window.addEventListener('resize', onWindowResize);
//
const gui = new GUI({ width: 300 });
gui.add(params, 'format', formats).onChange(initFboDepthTexture);
gui.add(params, 'type', types).onChange(initFboDepthTexture);
gui.add(params, 'samples', 0, 16, 1).onChange(initFboDepthTexture);
gui.close();
}
function initComputeRenderer() {
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['delta'] = { value: 0.0 };
velocityUniforms['time'] = { value: 0.0 };
velocityUniforms['delta'] = { value: 0.0 };
extraUniforms['time'] = { value: 0.0 };
extraUniforms['delta'] = { value: 0.0 };
// for fbo depth
positionUniforms['tDepthFont'] = { value: null };
positionUniforms['tNormalFont'] = { value: null };
velocityUniforms['tDepthFont'] = { value: null };
velocityUniforms['tNormalFont'] = { value: null };
positionUniforms['tDepthBack'] = { value: null };
positionUniforms['tNormalBack'] = { value: null };
velocityUniforms['tDepthBack'] = { value: null };
velocityUniforms['tNormalBack'] = { value: null };
positionUniforms['shadowMatrix0'] = { value: new THREE.Matrix4() };
positionUniforms['projInvert0'] = { value: new THREE.Matrix4() };
positionUniforms['viewInvert0'] = { value: new THREE.Matrix4() };
positionUniforms['shadowMatrix1'] = { value: new THREE.Matrix4() };
positionUniforms['projInvert1'] = { value: new THREE.Matrix4() };
positionUniforms['viewInvert1'] = { value: new THREE.Matrix4() };
velocityUniforms['shadowMatrix0'] = { value: new THREE.Matrix4() };
velocityUniforms['projInvert0'] = { value: new THREE.Matrix4() };
velocityUniforms['viewInvert0'] = { value: new THREE.Matrix4() };
velocityUniforms['shadowMatrix1'] = { value: new THREE.Matrix4() };
velocityUniforms['projInvert1'] = { value: new THREE.Matrix4() };
velocityUniforms['viewInvert1'] = { 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(0.1)
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
}
}
function initFboDepthTexture() {
if (FboTarget_DepthFont) FboTarget_DepthFont.dispose();
if (FboTarget_DepthBack) FboTarget_DepthBack.dispose();
const format = parseInt(params.format);
const type = parseInt(params.type);
const samples = parseInt(params.samples);
const dpr = renderer.getPixelRatio();
FboTarget_DepthFont = new THREE.WebGLRenderTarget(wView * dpr, hView * dpr, { format: THREE.RGBAFormat });
FboTarget_DepthFont.texture.minFilter = THREE.NearestFilter;
FboTarget_DepthFont.texture.magFilter = THREE.NearestFilter;
FboTarget_DepthFont.stencilBuffer = (format === THREE.DepthStencilFormat) ? true : false;
FboTarget_DepthFont.samples = samples;
FboTarget_DepthFont.depthTexture = new THREE.DepthTexture();
FboTarget_DepthFont.depthTexture.format = format;
FboTarget_DepthFont.depthTexture.type = type;
FboTarget_DepthBack = new THREE.WebGLRenderTarget(wView * dpr, hView * dpr, { format: THREE.RGBAFormat });
FboTarget_DepthBack.texture.minFilter = THREE.NearestFilter;
FboTarget_DepthBack.texture.magFilter = THREE.NearestFilter;
FboTarget_DepthBack.stencilBuffer = (format === THREE.DepthStencilFormat) ? true : false;
FboTarget_DepthBack.samples = samples;
FboTarget_DepthBack.depthTexture = new THREE.DepthTexture();
FboTarget_DepthBack.depthTexture.format = format;
FboTarget_DepthBack.depthTexture.type = type;
}
function initViewDisplay() {
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 = [];
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;
let posX = u * 2.0 - 1.0;
let posY = v * 2.0 - 1.0;
let extraX = Math.random() * 2 - 1
let extraY = Math.random() * 2 - 1
vertices.push(posX * 2., posY * 2., 0);
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;
attribute vec3 extra;
uniform sampler2D depthTexture;
uniform sampler2D tPos_gpu;
uniform sampler2D tVel_gpu;
varying vec3 vPos;
varying vec2 vUv;
varying float life;
void main() {
vec4 depthData = texture2D(depthTexture,uv).xyzw;
vec4 posGpu = texture2D(tPos_gpu,uv).xyzw;
// float zDepth = mix(0.0, 1.0, (depthData.b)/2. );
// pos.z = zDepth ;
gl_Position = projectionMatrix * modelViewMatrix * vec4(posGpu.xyz, 1.0);
vPos = extra;
vUv = uv;
life = posGpu.w;
gl_PointSize = 2. * ( posGpu.w );
}
`;
const fragmentShader = `
varying vec3 vPos;
uniform sampler2D texturePoint;
varying vec2 vUv;
varying float life;
void main() {
vec4 qq = texture2D(texturePoint,vUv).xyzw;
gl_FragColor = qq * 5.;
float lifeHiddenOutCircle = life*100.;
float lifeFormat = 0.;
if(life == 1.) {
lifeFormat = life;
}else{
lifeFormat = .36;
}
gl_FragColor = vec4(qq.xyz ,lifeFormat);
}
`;
const texture = new THREE.TextureLoader().load('textures/colorMap.jpg');
PointMat = new THREE.ShaderMaterial({
vertexShader: vertexShader,
fragmentShader: fragmentShader,
transparent: true,
uniforms: {
time: {
value: 0
},
texturePoint: {
value: texture
},
tPos_gpu : {
value: null
},
tVel_gpu : {
value: null
}
}
});
// Tạo điểm từ geometry và material
points = new THREE.Points(PointGeo, PointMat);
const vSphere = new THREE.Mesh(new THREE.SphereGeometry(2,32,32),new THREE.MeshNormalMaterial({wireframe:true,transparent:true,opacity:.1}))
sceneDisplay.add(points)
loaderObjModel.load(
'models/eisbar/bear.obj',
function (object) {
object.scale.set(1,1,1)
object.traverse(function (child) {
if (child.isMesh) {
// Áp dụng material
child.material = new THREE.MeshPhongMaterial({ flatShading: true ,transparent:true,opacity:.9,side:0,color:'blue'});
}
});
sceneDisplay.add(object);
},
// called when loading is in progresses
function (xhr) {
console.log((xhr.loaded / xhr.total * 100) + '% loaded');
},
// called when loading has errors
function (error) {
console.log('An error happened');
}
);
}
function initViewMonitor() {
sceneMonitor = new THREE.Scene();
sceneMonitor.background = new THREE.Color(0x000000);
// set cam ortho
const aspectRatio = 0.3; // vì đã sisscor
const vZ = 2.
camMonitor = new THREE.OrthographicCamera(- ratioView * vZ, ratioView * vZ, 1 * vZ, - 1 * vZ, 0, 1);
viewFBODepth_Mat = new THREE.ShaderMaterial({
vertexShader: document.querySelector('#viewDf-vert').textContent.trim(),
fragmentShader: document.querySelector('#viewDepth-frag').textContent.trim(),
uniforms: {
cameraNear: { value: 0.0001 },
cameraFar: { value: .1 },
tDepthFont: { value: null },
tNormalFont: { value:null},
tDepthBack: { value: null },
tNormalBack: { value:null}
}
});
viewFboNormal_Mat = new THREE.ShaderMaterial({
vertexShader: document.querySelector('#viewDf-vert').textContent.trim(),
fragmentShader: document.querySelector('#viewFbo1-frag').textContent.trim(),
uniforms: {
tNormalFont: { value: null },
tNormalBack: { value:null}
}
});
viewGPGPU_Pos = new THREE.ShaderMaterial({
vertexShader: document.querySelector('#viewDf-vert').textContent.trim(),
fragmentShader: document.querySelector('#viewGPGPU_Pos-frag').textContent.trim(),
uniforms: {
tPos: { value: null }
}
});