|
|
@@ -1,350 +0,0 @@
|
|
|
-<!DOCTYPE html>
|
|
|
-<html lang="en">
|
|
|
-<head>
|
|
|
- <title>three.js webgl - instancing - lambert shader</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">
|
|
|
- <style>
|
|
|
- a {
|
|
|
- color: #08f;
|
|
|
- }
|
|
|
- #notSupported {
|
|
|
- width: 50%;
|
|
|
- margin: auto;
|
|
|
- background-color: #f00;
|
|
|
- margin-top: 20px;
|
|
|
- padding: 10px;
|
|
|
- }
|
|
|
- </style>
|
|
|
-</head>
|
|
|
-<body>
|
|
|
-
|
|
|
- <div id="container"></div>
|
|
|
- <div id="info">
|
|
|
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - instancing - lambert shader
|
|
|
- <div id="notSupported" style="display:none">Sorry your graphics card + browser does not support hardware instancing</div>
|
|
|
- </div>
|
|
|
-
|
|
|
- <script type="module">
|
|
|
- import * as THREE from '../build/three.module.js';
|
|
|
-
|
|
|
- import Stats from './jsm/libs/stats.module.js';
|
|
|
-
|
|
|
- import { OrbitControls } from './jsm/controls/OrbitControls.js';
|
|
|
- import { Curves } from './jsm/curves/CurveExtras.js';
|
|
|
-
|
|
|
- // this is a cut-and-paste of the depth shader -- modified to accommodate instancing for this app
|
|
|
- var customDepthVertexShader =
|
|
|
- `
|
|
|
- // instanced
|
|
|
- attribute vec3 instanceOffset;
|
|
|
- attribute float instanceScale;
|
|
|
-
|
|
|
- #include <common>
|
|
|
- #include <uv_pars_vertex>
|
|
|
- #include <displacementmap_pars_vertex>
|
|
|
- #include <morphtarget_pars_vertex>
|
|
|
- #include <skinning_pars_vertex>
|
|
|
- #include <logdepthbuf_pars_vertex>
|
|
|
- #include <clipping_planes_pars_vertex>
|
|
|
-
|
|
|
- varying vec2 vHighPrecisionZW;
|
|
|
-
|
|
|
- void main() {
|
|
|
-
|
|
|
- #include <uv_vertex>
|
|
|
-
|
|
|
- #include <skinbase_vertex>
|
|
|
-
|
|
|
- #ifdef USE_DISPLACEMENTMAP
|
|
|
-
|
|
|
- #include <beginnormal_vertex>
|
|
|
- #include <morphnormal_vertex>
|
|
|
- #include <skinnormal_vertex>
|
|
|
-
|
|
|
- #endif
|
|
|
-
|
|
|
- #include <begin_vertex>
|
|
|
-
|
|
|
- // instanced
|
|
|
- transformed *= instanceScale;
|
|
|
- transformed = transformed + instanceOffset;
|
|
|
-
|
|
|
- #include <morphtarget_vertex>
|
|
|
- #include <skinning_vertex>
|
|
|
- #include <displacementmap_vertex>
|
|
|
- #include <project_vertex>
|
|
|
- #include <logdepthbuf_vertex>
|
|
|
- #include <clipping_planes_vertex>
|
|
|
-
|
|
|
- vHighPrecisionZW = gl_Position.zw;
|
|
|
-
|
|
|
- }
|
|
|
- `;
|
|
|
-
|
|
|
- // this is a cut-and-paste of the lambert shader -- modified to accommodate instancing for this app
|
|
|
- var customLambertVertexShader =
|
|
|
- `
|
|
|
- #define LAMBERT
|
|
|
-
|
|
|
- // instanced
|
|
|
- attribute vec3 instanceOffset;
|
|
|
- attribute vec3 instanceColor;
|
|
|
- attribute float instanceScale;
|
|
|
-
|
|
|
- varying vec3 vLightFront;
|
|
|
- varying vec3 vIndirectFront;
|
|
|
-
|
|
|
- #ifdef DOUBLE_SIDED
|
|
|
- varying vec3 vLightBack;
|
|
|
- varying vec3 vIndirectBack;
|
|
|
- #endif
|
|
|
-
|
|
|
- #include <common>
|
|
|
- #include <uv_pars_vertex>
|
|
|
- #include <uv2_pars_vertex>
|
|
|
- #include <envmap_pars_vertex>
|
|
|
- #include <bsdfs>
|
|
|
- #include <lights_pars_begin>
|
|
|
- #include <color_pars_vertex>
|
|
|
- #include <fog_pars_vertex>
|
|
|
- #include <morphtarget_pars_vertex>
|
|
|
- #include <skinning_pars_vertex>
|
|
|
- #include <shadowmap_pars_vertex>
|
|
|
- #include <logdepthbuf_pars_vertex>
|
|
|
- #include <clipping_planes_pars_vertex>
|
|
|
-
|
|
|
- void main() {
|
|
|
-
|
|
|
- #include <uv_vertex>
|
|
|
- #include <uv2_vertex>
|
|
|
- #include <color_vertex>
|
|
|
-
|
|
|
- // vertex colors instanced
|
|
|
- #ifdef USE_COLOR
|
|
|
- vColor.xyz = instanceColor.xyz;
|
|
|
- #endif
|
|
|
-
|
|
|
- #include <beginnormal_vertex>
|
|
|
- #include <morphnormal_vertex>
|
|
|
- #include <skinbase_vertex>
|
|
|
- #include <skinnormal_vertex>
|
|
|
- #include <defaultnormal_vertex>
|
|
|
-
|
|
|
- #include <begin_vertex>
|
|
|
-
|
|
|
- // position instanced
|
|
|
- transformed *= instanceScale;
|
|
|
- transformed = transformed + instanceOffset;
|
|
|
-
|
|
|
- #include <morphtarget_vertex>
|
|
|
- #include <skinning_vertex>
|
|
|
- #include <project_vertex>
|
|
|
- #include <logdepthbuf_vertex>
|
|
|
- #include <clipping_planes_vertex>
|
|
|
-
|
|
|
- #include <worldpos_vertex>
|
|
|
- #include <envmap_vertex>
|
|
|
- #include <lights_lambert_vertex>
|
|
|
- #include <shadowmap_vertex>
|
|
|
- #include <fog_vertex>
|
|
|
-
|
|
|
- }
|
|
|
- `;
|
|
|
-
|
|
|
-
|
|
|
- //
|
|
|
-
|
|
|
- var mesh, renderer, scene, camera, controls;
|
|
|
- var stats;
|
|
|
-
|
|
|
- init();
|
|
|
- animate();
|
|
|
-
|
|
|
- function init() {
|
|
|
-
|
|
|
- renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
|
- renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
- renderer.shadowMap.enabled = true;
|
|
|
- document.body.appendChild( renderer.domElement );
|
|
|
-
|
|
|
- renderer.outputEncoding = THREE.sRGBEncoding;
|
|
|
-
|
|
|
- scene = new THREE.Scene();
|
|
|
-
|
|
|
- scene.fog = new THREE.FogExp2( 0x000000, 0.004 );
|
|
|
- renderer.setClearColor( scene.fog.color, 1 );
|
|
|
-
|
|
|
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
|
|
|
- camera.position.set( 80, 40, 80 );
|
|
|
-
|
|
|
- scene.add( camera );
|
|
|
-
|
|
|
- controls = new OrbitControls( camera, renderer.domElement );
|
|
|
- controls.enableZoom = false;
|
|
|
- controls.maxPolarAngle = Math.PI / 2;
|
|
|
-
|
|
|
- scene.add( new THREE.AmbientLight( 0xffffff, 0.7 ) );
|
|
|
-
|
|
|
- var light = new THREE.DirectionalLight( 0xffffff, 0.4 );
|
|
|
- light.position.set( 50, 40, 0 );
|
|
|
-
|
|
|
- light.castShadow = true;
|
|
|
- light.shadow.camera.left = - 40;
|
|
|
- light.shadow.camera.right = 40;
|
|
|
- light.shadow.camera.top = 40;
|
|
|
- light.shadow.camera.bottom = - 40;
|
|
|
- light.shadow.camera.near = 10;
|
|
|
- light.shadow.camera.far = 180;
|
|
|
-
|
|
|
- light.shadow.bias = - 0.001;
|
|
|
- light.shadow.mapSize.width = 512;
|
|
|
- light.shadow.mapSize.height = 512;
|
|
|
-
|
|
|
- scene.add( light );
|
|
|
-
|
|
|
- // light shadow camera helper
|
|
|
- //light.shadowCameraHelper = new CameraHelper( light.shadow.camera );
|
|
|
- //scene.add( light.shadowCameraHelper );
|
|
|
-
|
|
|
-
|
|
|
- // instanced buffer geometry
|
|
|
-
|
|
|
- var geometry = new THREE.InstancedBufferGeometry();
|
|
|
- geometry.copy( new THREE.TorusBufferGeometry( 2, 0.5, 8, 128 ) );
|
|
|
-
|
|
|
- const INSTANCES = 256;
|
|
|
-
|
|
|
- var knot = new Curves.TorusKnot( 10 );
|
|
|
- var positions = knot.getSpacedPoints( INSTANCES );
|
|
|
-
|
|
|
- var offsets = new Float32Array( INSTANCES * 3 ); // xyz
|
|
|
- var colors = new Float32Array( INSTANCES * 3 ); // rgb
|
|
|
- var scales = new Float32Array( INSTANCES * 1 ); // s
|
|
|
-
|
|
|
- for ( var i = 0, l = INSTANCES; i < l; i ++ ) {
|
|
|
-
|
|
|
- var index = 3 * i;
|
|
|
-
|
|
|
- // per-instance position offset
|
|
|
- offsets[ index ] = positions[ i ].x;
|
|
|
- offsets[ index + 1 ] = positions[ i ].y;
|
|
|
- offsets[ index + 2 ] = positions[ i ].z;
|
|
|
-
|
|
|
- // per-instance color tint - optional
|
|
|
- colors[ index ] = 1;
|
|
|
- colors[ index + 1 ] = 1;
|
|
|
- colors[ index + 2 ] = 1;
|
|
|
-
|
|
|
- // per-instance scale variation
|
|
|
- scales[ i ] = 1 + 0.5 * Math.sin( 32 * Math.PI * i / INSTANCES );
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- geometry.setAttribute( 'instanceOffset', new THREE.InstancedBufferAttribute( offsets, 3 ) );
|
|
|
- geometry.setAttribute( 'instanceColor', new THREE.InstancedBufferAttribute( colors, 3 ) );
|
|
|
- geometry.setAttribute( 'instanceScale', new THREE.InstancedBufferAttribute( scales, 1 ) );
|
|
|
-
|
|
|
-
|
|
|
- // material
|
|
|
-
|
|
|
- var envMap = new THREE.TextureLoader().load( `textures/metal.jpg`, function ( texture ) {
|
|
|
-
|
|
|
- texture.mapping = THREE.SphericalReflectionMapping;
|
|
|
- texture.encoding = THREE.sRGBEncoding;
|
|
|
- if ( mesh ) mesh.material.needsUpdate = true;
|
|
|
-
|
|
|
- } );
|
|
|
-
|
|
|
- var material = new THREE.MeshLambertMaterial( {
|
|
|
-
|
|
|
- color: 0xffb54a,
|
|
|
- envMap: envMap,
|
|
|
- combine: THREE.MultiplyOperation,
|
|
|
- reflectivity: 0.8,
|
|
|
-
|
|
|
- vertexColors: true,
|
|
|
- fog: true
|
|
|
-
|
|
|
- } );
|
|
|
-
|
|
|
- material.onBeforeCompile = function( shader ) {
|
|
|
-
|
|
|
- shader.vertexShader = customLambertVertexShader;
|
|
|
-
|
|
|
- };
|
|
|
-
|
|
|
-
|
|
|
- // custom depth material - required for instanced shadows
|
|
|
-
|
|
|
- var customDepthMaterial = new THREE.MeshDepthMaterial();
|
|
|
-
|
|
|
- customDepthMaterial.onBeforeCompile = function( shader ) {
|
|
|
-
|
|
|
- shader.vertexShader = customDepthVertexShader;
|
|
|
-
|
|
|
- };
|
|
|
-
|
|
|
- customDepthMaterial.depthPacking = THREE.RGBADepthPacking;
|
|
|
-
|
|
|
- //
|
|
|
-
|
|
|
- mesh = new THREE.Mesh( geometry, material );
|
|
|
- mesh.scale.set( 1, 1, 2 );
|
|
|
- mesh.castShadow = true;
|
|
|
- mesh.receiveShadow = true;
|
|
|
- mesh.customDepthMaterial = customDepthMaterial;
|
|
|
- mesh.frustumCulled = false;
|
|
|
-
|
|
|
- scene.add( mesh );
|
|
|
-
|
|
|
- //
|
|
|
-
|
|
|
- var ground = new THREE.Mesh(
|
|
|
- new THREE.PlaneBufferGeometry( 800, 800 ).rotateX( - Math.PI / 2 ),
|
|
|
- new THREE.MeshPhongMaterial( { color: 0x888888 } )
|
|
|
- );
|
|
|
- ground.position.set( 0, - 40, 0 );
|
|
|
- ground.receiveShadow = true;
|
|
|
-
|
|
|
- scene.add( ground );
|
|
|
-
|
|
|
- //
|
|
|
-
|
|
|
- stats = new Stats();
|
|
|
- document.body.appendChild( stats.dom );
|
|
|
-
|
|
|
- //
|
|
|
-
|
|
|
- window.addEventListener( 'resize', onWindowResize, false );
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- function onWindowResize() {
|
|
|
-
|
|
|
- renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
-
|
|
|
- camera.aspect = window.innerWidth / window.innerHeight;
|
|
|
- camera.updateProjectionMatrix();
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- function animate() {
|
|
|
-
|
|
|
- requestAnimationFrame( animate );
|
|
|
-
|
|
|
- mesh.rotation.y += 0.005;
|
|
|
-
|
|
|
- stats.update();
|
|
|
-
|
|
|
- renderer.render( scene, camera );
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
- </script>
|
|
|
-
|
|
|
-</body>
|
|
|
-
|
|
|
-</html>
|
WestLangley