mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 13:06:01 +10:00
alteredq
255c042b1e
This allows to work around ANGLE antialiasing issue appearing when compositing WebGL framebuffer with transparent background color with HTML canvas element background (while keeping antialiasing on).
WebGLRenderer constructor now takes JSON object with few optional parameters:
renderer = new THREE.WebGLRenderer { scene: scene,
antialias: true,
clearColor: 0x000000,
clearAlpha: 0 };
Here is how to change clear color in runtime:
renderer.setClearColor( 0xff0000, 1 );
319 lines
7.8 KiB
HTML
319 lines
7.8 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js - geometry - minecraft</title>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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color: #61443e;
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font-family:Monospace;
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font-size:13px;
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text-align:center;
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background-color: #bfd1e5;
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margin: 0px;
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overflow: hidden;
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}
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#info {
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position: absolute;
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top: 0px; width: 100%;
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padding: 5px;
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}
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a {
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color: #a06851;
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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="container"><br /><br /><br /><br /><br />Generating world...</div>
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<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - <a href="http://www.minecraft.net/" target="_blank">minecraft</a> demo. featuring <a href="http://painterlypack.net/" target="_blank">painterly pack</a><br />(left click: forward, right click: backward)</div>
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<script type="text/javascript" src="js/Stats.js"></script>
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<script type="text/javascript" src="js/ImprovedNoise.js"></script>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="../src/extras/GeometryUtils.js"></script>
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<script type="text/javascript" src="../src/extras/primitives/Cube.js"></script>
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<script type="text/javascript">
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var container, stats;
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var camera, scene, renderer;
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var mesh;
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var worldWidth = 128, worldDepth = 128,
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worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2,
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data = generateHeight( worldWidth, worldDepth );
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var mouseX = 0, mouseY = 0,
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lat = 0, lon = 0, phy = 0, theta = 0;
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var direction = new THREE.Vector3(),
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moveForward = false, moveBackward = false;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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init();
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setInterval( loop, 1000 / 60 );
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function init() {
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container = document.getElementById( 'container' );
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camera = new THREE.Camera( 60, window.innerWidth / window.innerHeight, 1, 20000 );
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camera.target.position.z = - 100;
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scene = new THREE.Scene();
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var grass_dirt = loadTexture( 'textures/minecraft/grass_dirt.png' ),
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grass = loadTexture( 'textures/minecraft/grass.png' ),
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dirt = loadTexture( 'textures/minecraft/dirt.png' );
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var materials = [
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grass_dirt, // right
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grass_dirt, // left
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grass, // top
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dirt, // bottom
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grass_dirt, // back
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grass_dirt // front
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];
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var h, h2, px, nx, pz, nz, cubes = [];
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for ( var i = 0; i < 16; i++ ) {
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px = (i & 8) == 8;
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nx = (i & 4) == 4;
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pz = (i & 2) == 2;
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nz = (i & 1) == 1;
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cubes[ i ] = new Cube( 100, 100, 100, 1, 1, materials, false, { px: px, nx: nx, py: true, ny: false, pz: pz, nz: nz } );
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}
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var geometry = new THREE.Geometry();
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camera.position.y = getY( worldHalfWidth, worldHalfDepth ) * 100 + 100;
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camera.target.position.y = camera.position.y;
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for ( var z = 0; z < worldDepth; z ++ ) {
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for ( var x = 0; x < worldWidth; x ++ ) {
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px = nx = pz = nz = 0;
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h = getY( x, z );
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h2 = getY( x - 1, z );
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px = ( h2 != h && h2 != h + 1 ) || x == 0 ? 1 : 0;
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h2 = getY( x + 1, z );
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nx = ( h2 != h && h2 != h + 1 ) || x == worldWidth - 1 ? 1 : 0;
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h2 = getY( x, z + 1 );
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pz = ( h2 != h && h2 != h + 1 ) || z == worldDepth - 1 ? 1 : 0;
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h2 = getY( x, z - 1 );
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nz = ( h2 != h && h2 != h + 1 ) || z == 0 ? 1 : 0;
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mesh = new THREE.Mesh( cubes[ px * 8 + nx * 4 + pz * 2 + nz ] );
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mesh.position.x = x * 100 - worldHalfWidth * 100;
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mesh.position.y = h * 100;
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mesh.position.z = z * 100 - worldHalfDepth * 100;
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GeometryUtils.merge( geometry, mesh );
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}
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}
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geometry.sortFacesByMaterial();
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mesh = new THREE.Mesh( geometry, new THREE.MeshFaceMaterial() );
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scene.addObject( mesh );
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var ambientLight = new THREE.AmbientLight( 0xcccccc );
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scene.addLight( ambientLight );
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var directionalLight = new THREE.DirectionalLight( 0xffffff, 1.5 );
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directionalLight.position.x = 1;
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directionalLight.position.y = 1;
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directionalLight.position.z = 0.5;
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directionalLight.position.normalize();
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scene.addLight( directionalLight );
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renderer = new THREE.WebGLRenderer( { scene: scene } );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.innerHTML = "";
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container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild( stats.domElement );
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
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document.addEventListener( 'keydown', onDocumentKeyDown, false );
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document.addEventListener( 'keyup', onDocumentKeyUp, false );
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}
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function generateAO( image, sides ) {
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var c = document.createElement('canvas');
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c.width = image.width;
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c.height = image.height;
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c.getContext( "2d" ).drawImage( image, 0, 0 );
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return c;
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}
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function loadTexture( path ) {
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var image = new Image();
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image.onload = function () { this.loaded = true; };
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image.src = path;
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return new THREE.MeshLambertMaterial( { map: new THREE.Texture( image, new THREE.UVMapping(), THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping, THREE.NearestFilter, THREE.LinearMipMapLinearFilter ) } );
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}
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function generateHeight( width, height ) {
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var data = [], perlin = new ImprovedNoise(),
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size = width * height, quality = 2, z = Math.random() * 100;
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for ( var j = 0; j < 4; j ++ ) {
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if ( j == 0 ) for ( var i = 0; i < size; i ++ ) data[ i ] = 0;
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for ( var i = 0; i < size; i ++ ) {
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var x = i % width, y = ~~ ( i / width );
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data[ i ] += perlin.noise( x / quality, y / quality, z ) * quality;
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}
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quality *= 4
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}
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return data;
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}
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function getY( x, z ) {
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return ~~( data[ x + z * worldWidth ] * 0.2 );
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}
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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event.stopPropagation();
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switch ( event.button ) {
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case 0: moveForward = true; break;
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case 2: moveBackward = true; break;
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}
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}
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function onDocumentMouseUp( event ) {
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event.preventDefault();
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event.stopPropagation();
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switch ( event.button ) {
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case 0: moveForward = false; break;
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case 2: moveBackward = false; break;
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}
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}
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function onDocumentMouseMove(event) {
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mouseX = event.clientX - windowHalfX;
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mouseY = event.clientY - windowHalfY;
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}
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function onDocumentKeyDown( event ) {
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switch( event.keyCode ) {
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case 38: /*↑*/ moveForward = true; break;
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case 40: /*↓*/ moveBackward = true; break;
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case 87: /*W*/ moveForward = true; break;
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case 83: /*S*/ moveBackward = true; break;
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}
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}
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function onDocumentKeyUp( event ) {
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switch( event.keyCode ) {
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case 38: /*↑*/ moveForward = false; break;
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case 40: /*↓*/ moveBackward = false; break;
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case 87: /*W*/ moveForward = false; break;
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case 83: /*S*/ moveBackward = false; break;
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}
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}
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function loop() {
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if ( moveForward ) camera.translateZ( - 15 );
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if ( moveBackward ) camera.translateZ( 15 );
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lon += mouseX * 0.005;
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lat -= mouseY * 0.005;
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lat = Math.max( - 85, Math.min( 85, lat ) );
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phi = ( 90 - lat ) * Math.PI / 180;
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theta = lon * Math.PI / 180;
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camera.target.position.x = 100 * Math.sin( phi ) * Math.cos( theta ) + camera.position.x;
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camera.target.position.y = 100 * Math.cos( phi ) + camera.position.y;
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camera.target.position.z = 100 * Math.sin( phi ) * Math.sin( theta ) + camera.position.z;
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renderer.render(scene, camera);
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stats.update();
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}
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</script>
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</body>
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</html>
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