mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-25 04:23:47 +01:00
186 lines
4.5 KiB
HTML
186 lines
4.5 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - materials - blending</title>
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<meta charset="utf-8">
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<style>
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body {
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margin: 0px;
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background-color: #000000;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<script src="../build/three.min.js"></script>
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<script src="js/Detector.js"></script>
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<script>
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if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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var camera, scene, renderer;
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var mesh, mapBg;
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init();
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animate();
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function init() {
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// CAMERA
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.z = 600;
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// SCENE
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scene = new THREE.Scene();
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// BACKGROUND
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var x = document.createElement( "canvas" );
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var xc = x.getContext( "2d" );
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x.width = x.height = 128;
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xc.fillStyle = "#ddd";
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xc.fillRect( 0, 0, 128, 128 );
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xc.fillStyle = "#555";
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xc.fillRect( 0, 0, 64, 64 );
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xc.fillStyle = "#999";
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xc.fillRect( 32, 32, 32, 32 );
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xc.fillStyle = "#555";
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xc.fillRect( 64, 64, 64, 64 );
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xc.fillStyle = "#777";
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xc.fillRect( 96, 96, 32, 32 );
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mapBg = new THREE.Texture( x );
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mapBg.wrapS = mapBg.wrapT = THREE.RepeatWrapping;
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mapBg.repeat.set( 128, 64 );
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mapBg.needsUpdate = true;
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/*
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var mapBg = THREE.ImageUtils.loadTexture( "textures/disturb.jpg" );
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mapBg.wrapS = mapBg.wrapT = THREE.RepeatWrapping;
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mapBg.repeat.set( 8, 4 );
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*/
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var materialBg = new THREE.MeshBasicMaterial( { map: mapBg } );
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var meshBg = new THREE.Mesh( new THREE.PlaneBufferGeometry( 4000, 2000 ), materialBg );
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meshBg.position.set( 0, 0, -1 );
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scene.add( meshBg );
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// OBJECTS
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var blendings = [ "NoBlending", "NormalBlending", "AdditiveBlending", "SubtractiveBlending", "MultiplyBlending", "AdditiveAlphaBlending" ];
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var map0 = THREE.ImageUtils.loadTexture( 'textures/UV_Grid_Sm.jpg' );
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var map1 = THREE.ImageUtils.loadTexture( 'textures/sprite0.jpg' );
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var map2 = THREE.ImageUtils.loadTexture( 'textures/sprite0.png' );
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var map3 = THREE.ImageUtils.loadTexture( 'textures/lensflare/lensflare0.png' );
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var map4 = THREE.ImageUtils.loadTexture( 'textures/lensflare/lensflare0_alpha.png' );
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var geo1 = new THREE.PlaneBufferGeometry( 100, 100 );
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var geo2 = new THREE.PlaneBufferGeometry( 100, 25 );
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addImageRow( map0, 300 );
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addImageRow( map1, 150 );
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addImageRow( map2, 0 );
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addImageRow( map3, -150 );
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addImageRow( map4, -300 );
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function addImageRow( map, y ) {
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for ( var i = 0; i < blendings.length; i ++ ) {
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var blending = blendings[ i ];
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var material = new THREE.MeshBasicMaterial( { map: map } );
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material.transparent = true;
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material.blending = THREE[ blending ];
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var x = ( i - blendings.length / 2 ) * 110;
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var z = 0;
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var mesh = new THREE.Mesh( geo1, material );
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mesh.position.set( x, y, z );
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scene.add( mesh );
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var mesh = new THREE.Mesh( geo2, generateLabelMaterial( blending.replace( "Blending", "" ) ) );
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mesh.position.set( x, y - 75, z );
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scene.add( mesh );
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}
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}
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// RENDERER
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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// EVENTS
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window.addEventListener( 'resize', onWindowResize, false );
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}
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//
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function onWindowResize( event ) {
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var SCREEN_WIDTH = window.innerWidth;
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var SCREEN_HEIGHT = window.innerHeight;
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renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
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camera.updateProjectionMatrix();
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}
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function generateLabelMaterial( text ) {
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var x = document.createElement( "canvas" );
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var xc = x.getContext( "2d" );
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x.width = 128;
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x.height = 32;
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xc.fillStyle = "rgba( 0, 0, 0, 0.95 )";
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xc.fillRect( 0, 0, 128, 32 );
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xc.fillStyle = "white";
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xc.font = "12pt arial bold";
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xc.fillText( text, 10, 22 );
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var map = new THREE.Texture( x );
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map.needsUpdate = true;
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var material = new THREE.MeshBasicMaterial( { map: map, transparent: true } );
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return material;
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}
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function animate() {
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requestAnimationFrame( animate );
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var time = Date.now() * 0.00025;
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var ox = ( time * -0.01 * mapBg.repeat.x ) % 1;
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var oy = ( time * -0.01 * mapBg.repeat.y ) % 1;
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mapBg.offset.set( ox, oy );
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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