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245 lines
5.8 KiB
HTML
245 lines
5.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - test - wide gamut</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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<style>
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.container {
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position: absolute;
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overflow: hidden;
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width: 100%;
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height: 100%;
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}
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/* based on https://github.com/Paul-Browne/image-comparison-slider */
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.slider {
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position: absolute;
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width: 200px;
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height: 100%;
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top: 0;
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left: 0;
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z-index: 1;
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}
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.slider:before,
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.slider:after {
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position: absolute;
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left: 50%;
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content: "";
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background: #fff;
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cursor: grab;
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}
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.slider:before {
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top: 0;
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transform: translateX(-50%);
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width: 1px;
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height: 100%;
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}
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.slider:after {
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top: 50%;
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transform: translate(-50%, -50%);
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width: 5px;
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height: 33%;
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border-radius: 5px;
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}
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.label {
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position: fixed;
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top: calc(50% - 1em);
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height: 2em;
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line-height: 2em;
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background: rgba(0, 0, 0, 0.5);
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margin: 0;
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padding: 0.2em 0.5em;
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border-radius: 4px;
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font-size: 14px;
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user-select: none;
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-webkit-user-select: none;
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}
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</style>
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - wide gamut test<br />
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</div>
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<div class="container">
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<div class="slider"></div>
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<p class="label" style="left: 1em;">sRGB</p>
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<p class="label" style="right: 1em;">Display P3</p>
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { DisplayP3ColorSpace, DisplayP3ColorSpaceImpl, LinearDisplayP3ColorSpace, LinearDisplayP3ColorSpaceImpl } from 'three/addons/math/ColorSpaces.js';
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import WebGL from 'three/addons/capabilities/WebGL.js';
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let container, camera, renderer, loader;
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let sceneL, sceneR, textureL, textureR;
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let sliderPos = window.innerWidth / 2;
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const slider = document.querySelector( '.slider' );
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const isP3Context = WebGL.isColorSpaceAvailable( DisplayP3ColorSpace );
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THREE.ColorManagement.define( {
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[ DisplayP3ColorSpace ]: DisplayP3ColorSpaceImpl,
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[ LinearDisplayP3ColorSpace ]: LinearDisplayP3ColorSpaceImpl
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} );
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if ( isP3Context ) {
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THREE.ColorManagement.workingColorSpace = LinearDisplayP3ColorSpace;
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}
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init();
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function init() {
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container = document.querySelector( '.container' );
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sceneL = new THREE.Scene();
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sceneR = new THREE.Scene();
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camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 0.1, 100 );
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camera.position.z = 6;
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loader = new THREE.TextureLoader();
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initTextures();
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initSlider();
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( animate );
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renderer.setScissorTest( true );
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container.appendChild( renderer.domElement );
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if ( isP3Context && window.matchMedia( '( color-gamut: p3 )' ).matches ) {
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renderer.outputColorSpace = DisplayP3ColorSpace;
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}
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window.addEventListener( 'resize', onWindowResize );
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window.matchMedia( '( color-gamut: p3 )' ).addEventListener( 'change', onGamutChange );
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}
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async function initTextures() {
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const path = 'textures/wide_gamut/logo_{colorSpace}.png';
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textureL = await loader.loadAsync( path.replace( '{colorSpace}', 'srgb' ) );
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textureR = await loader.loadAsync( path.replace( '{colorSpace}', 'p3' ) );
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textureL.colorSpace = THREE.SRGBColorSpace;
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textureR.colorSpace = DisplayP3ColorSpace;
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sceneL.background = THREE.TextureUtils.contain( textureL, window.innerWidth / window.innerHeight );
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sceneR.background = THREE.TextureUtils.contain( textureR, window.innerWidth / window.innerHeight );
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}
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function initSlider() {
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function onPointerDown() {
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if ( event.isPrimary === false ) return;
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window.addEventListener( 'pointermove', onPointerMove );
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window.addEventListener( 'pointerup', onPointerUp );
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}
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function onPointerUp() {
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window.removeEventListener( 'pointermove', onPointerMove );
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window.removeEventListener( 'pointerup', onPointerUp );
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}
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function onPointerMove( e ) {
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if ( event.isPrimary === false ) return;
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updateSlider( e.pageX );
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}
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updateSlider( sliderPos );
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slider.style.touchAction = 'none'; // disable touch scroll
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slider.addEventListener( 'pointerdown', onPointerDown );
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}
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function updateSlider( offset ) {
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sliderPos = Math.max( 10, Math.min( window.innerWidth - 10, offset ) );
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slider.style.left = sliderPos - ( slider.offsetWidth / 2 ) + 'px';
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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THREE.TextureUtils.contain( sceneL.background, window.innerWidth / window.innerHeight );
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THREE.TextureUtils.contain( sceneR.background, window.innerWidth / window.innerHeight );
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updateSlider( sliderPos );
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}
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function onGamutChange( { matches } ) {
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renderer.outputColorSpace = isP3Context && matches ? DisplayP3ColorSpace : THREE.SRGBColorSpace;
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textureL.needsUpdate = true;
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textureR.needsUpdate = true;
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}
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function animate() {
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renderer.setScissor( 0, 0, sliderPos, window.innerHeight );
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renderer.render( sceneL, camera );
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renderer.setScissor( sliderPos, 0, window.innerWidth, window.innerHeight );
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renderer.render( sceneR, camera );
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}
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</script>
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</body>
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</html>
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