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<title>three.js webgl - materials - compressed textures</title>
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl - PVR compressed textures
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<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.8.0/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { PVRLoader } from 'three/addons/loaders/PVRLoader.js';
let camera, scene, renderer;
const meshes = [];
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 1000;
scene = new THREE.Scene();
const geometry = new THREE.BoxGeometry( 200, 200, 200 );
//
const onCube1Loaded = function ( texture ) {
texture.magFilter = THREE.LinearFilter;
texture.minFilter = THREE.LinearFilter;
texture.mapping = THREE.CubeReflectionMapping;
texture.colorSpace = THREE.SRGBColorSpace;
material6.needsUpdate = true;
};
const onCube2Loaded = function ( texture ) {
texture.magFilter = THREE.LinearFilter;
// texture.minFilter = LinearMipmapNearestFilter;
texture.minFilter = THREE.LinearFilter;
texture.mapping = THREE.CubeReflectionMapping;
texture.colorSpace = THREE.SRGBColorSpace;
material8.needsUpdate = true;
};
//
const loader = new PVRLoader();
const disturb_4bpp_rgb = loader.load( 'textures/compressed/disturb_4bpp_rgb.pvr' );
const disturb_4bpp_rgb_v3 = loader.load( 'textures/compressed/disturb_4bpp_rgb_v3.pvr' );
const disturb_4bpp_rgb_mips = loader.load( 'textures/compressed/disturb_4bpp_rgb_mips.pvr' );
const disturb_2bpp_rgb = loader.load( 'textures/compressed/disturb_2bpp_rgb.pvr' );
const flare_4bpp_rgba = loader.load( 'textures/compressed/flare_4bpp_rgba.pvr' );
const flare_2bpp_rgba = loader.load( 'textures/compressed/flare_2bpp_rgba.pvr' );
const park3_cube_nomip_4bpp_rgb = loader.load( 'textures/compressed/park3_cube_nomip_4bpp_rgb.pvr', onCube1Loaded );
const park3_cube_mip_2bpp_rgb_v3 = loader.load( 'textures/compressed/park3_cube_mip_2bpp_rgb_v3.pvr', onCube2Loaded );
disturb_2bpp_rgb.minFilter =
disturb_2bpp_rgb.magFilter =
flare_4bpp_rgba.minFilter =
flare_4bpp_rgba.magFilter =
disturb_4bpp_rgb.minFilter =
disturb_4bpp_rgb.magFilter =
disturb_4bpp_rgb_v3.minFilter =
disturb_4bpp_rgb_v3.magFilter =
flare_2bpp_rgba.minFilter =
flare_2bpp_rgba.magFilter = THREE.LinearFilter;
disturb_2bpp_rgb.encoding =
flare_4bpp_rgba.encoding =
disturb_4bpp_rgb.encoding =
disturb_4bpp_rgb_v3.encoding =
flare_2bpp_rgba.colorSpace = THREE.SRGBColorSpace;
const material1 = new THREE.MeshBasicMaterial( { map: disturb_4bpp_rgb } );
const material2 = new THREE.MeshBasicMaterial( { map: disturb_4bpp_rgb_mips } );
const material3 = new THREE.MeshBasicMaterial( { map: disturb_2bpp_rgb } );
const material4 = new THREE.MeshBasicMaterial( { map: flare_4bpp_rgba, side: THREE.DoubleSide, depthTest: false, transparent: true } );
const material5 = new THREE.MeshBasicMaterial( { map: flare_2bpp_rgba, side: THREE.DoubleSide, depthTest: false, transparent: true } );
const material6 = new THREE.MeshBasicMaterial( { envMap: park3_cube_nomip_4bpp_rgb } );
const material8 = new THREE.MeshBasicMaterial( { envMap: park3_cube_mip_2bpp_rgb_v3 } );
const material7 = new THREE.MeshBasicMaterial( { map: disturb_4bpp_rgb_v3 } );
//
let mesh = new THREE.Mesh( geometry, material1 );
mesh.position.x = - 500;
mesh.position.y = 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( geometry, material2 );
mesh.position.x = - 166;
mesh.position.y = 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( geometry, material3 );
mesh.position.x = 166;
mesh.position.y = 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( geometry, material7 );
mesh.position.x = 500;
mesh.position.y = 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( geometry, material4 );
mesh.position.x = - 500;
mesh.position.y = - 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( geometry, material5 );
mesh.position.x = - 166;
mesh.position.y = - 200;
scene.add( mesh );
meshes.push( mesh );
const torus = new THREE.TorusGeometry( 100, 50, 32, 24 );
mesh = new THREE.Mesh( torus, material6 );
mesh.position.x = 166;
mesh.position.y = - 200;
scene.add( mesh );
meshes.push( mesh );
mesh = new THREE.Mesh( torus, material8 );
mesh.position.x = 500;
mesh.position.y = - 200;
scene.add( mesh );
meshes.push( mesh );
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
const time = Date.now() * 0.001;
for ( let i = 0; i < meshes.length; i ++ ) {
const mesh = meshes[ i ];
mesh.rotation.x = time;
mesh.rotation.y = time;
}
renderer.render( scene, camera );
}
</script>
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