mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-24 12:25:56 +10:00
Mr.doob
76e7ea3461
WebGLRenderer antialias is off by default (considering Firefox doesn't support it...) Formatting clean up here and there
338 lines
10 KiB
HTML
338 lines
10 KiB
HTML
<!DOCTYPE HTML>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - materials - shaders [lava]</title>
|
|
<meta charset="utf-8">
|
|
<style type="text/css">
|
|
body {
|
|
color: #ffffff;
|
|
font-family:Monospace;
|
|
font-size:13px;
|
|
text-align:center;
|
|
font-weight: bold;
|
|
|
|
background-color: #000000;
|
|
margin: 0px;
|
|
overflow: hidden;
|
|
}
|
|
|
|
#info {
|
|
position: absolute;
|
|
top: 0px; width: 100%;
|
|
padding: 5px;
|
|
}
|
|
|
|
a {
|
|
|
|
color: #ffffff;
|
|
}
|
|
|
|
#oldie a { color:#da0 }
|
|
</style>
|
|
</head>
|
|
<body>
|
|
|
|
<div id="container"></div>
|
|
<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - shader material demo. featuring lava shader by <a href="http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?t=21057" target="_blank">TheGameMaker</a></div>
|
|
|
|
<script type="text/javascript" src="../build/Three.js"></script>
|
|
|
|
<script type="text/javascript" src="js/Detector.js"></script>
|
|
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
|
|
<script type="text/javascript" src="js/Stats.js"></script>
|
|
|
|
<script id="fragmentShader" type="x-shader/x-fragment">
|
|
|
|
uniform float time;
|
|
uniform vec2 resolution;
|
|
|
|
uniform float fogDensity;
|
|
uniform vec3 fogColor;
|
|
|
|
uniform sampler2D texture1;
|
|
uniform sampler2D texture2;
|
|
|
|
varying vec2 vUv;
|
|
|
|
void main( void ) {
|
|
|
|
vec2 position = -1.0 + 2.0 * vUv;
|
|
|
|
vec4 noise = texture2D( texture1, vUv );
|
|
vec2 T1 = vUv + vec2( 1.5, -1.5 ) * time *0.02;
|
|
vec2 T2 = vUv + vec2( -0.5, 2.0 ) * time * 0.01;
|
|
|
|
T1.x += noise.x * 2.0;
|
|
T1.y += noise.y * 2.0;
|
|
T2.x -= noise.y * 0.2;
|
|
T2.y += noise.z * 0.2;
|
|
|
|
float p = texture2D( texture1, T1 * 2.0 ).a;
|
|
|
|
vec4 color = texture2D( texture2, T2 * 2.0 );
|
|
vec4 temp = color * ( vec4( p, p, p, p ) * 2.0 ) + ( color * color - 0.1 );
|
|
|
|
if( temp.r > 1.0 ){ temp.bg += clamp( temp.r - 2.0, 0.0, 100.0 ); }
|
|
if( temp.g > 1.0 ){ temp.rb += temp.g - 1.0; }
|
|
if( temp.b > 1.0 ){ temp.rg += temp.b - 1.0; }
|
|
|
|
gl_FragColor = temp;
|
|
|
|
float depth = gl_FragCoord.z / gl_FragCoord.w;
|
|
const float LOG2 = 1.442695;
|
|
float fogFactor = exp2( - fogDensity * fogDensity * depth * depth * LOG2 );
|
|
fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );
|
|
|
|
gl_FragColor = mix( gl_FragColor, vec4( fogColor, gl_FragColor.w ), fogFactor );
|
|
|
|
}
|
|
</script>
|
|
|
|
<script id="vertexShader" type="x-shader/x-vertex">
|
|
|
|
uniform vec2 uvScale;
|
|
varying vec2 vUv;
|
|
|
|
void main()
|
|
{
|
|
|
|
vUv = uvScale * uv;
|
|
vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
|
|
gl_Position = projectionMatrix * mvPosition;
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
<script type="text/javascript">
|
|
|
|
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
|
|
|
|
var container, stats;
|
|
|
|
var start_time;
|
|
|
|
var camera, scene, renderer;
|
|
|
|
var uniforms, material, mesh;
|
|
|
|
var mouseX = 0, mouseY = 0,
|
|
lat = 0, lon = 0, phy = 0, theta = 0;
|
|
|
|
var windowHalfX = window.innerWidth / 2;
|
|
var windowHalfY = window.innerHeight / 2;
|
|
|
|
var postprocessing = { enabled : true };
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.getElementById( 'container' );
|
|
|
|
camera = new THREE.Camera( 35, windowHalfX / windowHalfY, 1, 3000 );
|
|
camera.position.z = 4;
|
|
|
|
scene = new THREE.Scene();
|
|
|
|
start_time = new Date().getTime();
|
|
|
|
uniforms = {
|
|
|
|
fogDensity: { type: "f", value: 0.45 },
|
|
fogColor: { type: "v3", value: new THREE.Vector3( 0, 0, 0 ) },
|
|
time: { type: "f", value: 1.0 },
|
|
resolution: { type: "v2", value: new THREE.Vector2() },
|
|
uvScale: { type: "v2", value: new THREE.Vector2( 3.0, 1.0 ) },
|
|
texture1: { type: "t", value: 0, texture: THREE.ImageUtils.loadTexture( "textures/lava/cloud.png" ) },
|
|
texture2: { type: "t", value: 1, texture: THREE.ImageUtils.loadTexture( "textures/lava/lavatile.jpg" ) }
|
|
|
|
};
|
|
|
|
uniforms.texture1.texture.wrapS = uniforms.texture1.texture.wrapT = THREE.Repeat;
|
|
uniforms.texture2.texture.wrapS = uniforms.texture2.texture.wrapT = THREE.Repeat;
|
|
|
|
var size = 0.65;
|
|
|
|
material = new THREE.MeshShaderMaterial( {
|
|
|
|
uniforms: uniforms,
|
|
vertexShader: document.getElementById( 'vertexShader' ).textContent,
|
|
fragmentShader: document.getElementById( 'fragmentShader' ).textContent
|
|
|
|
} );
|
|
|
|
mesh = new THREE.Mesh( new THREE.Torus( size, 0.3, 30, 30 ), [ material /*, new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, wireframeLinewidth: 2 } ) */ ] );
|
|
mesh.position.x = 0;
|
|
mesh.position.y = 0;
|
|
mesh.rotation.x = 0.3;
|
|
scene.addObject( mesh );
|
|
|
|
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
container.appendChild( renderer.domElement );
|
|
|
|
initPostprocessing();
|
|
renderer.autoClear = false;
|
|
|
|
stats = new Stats();
|
|
stats.domElement.style.position = 'absolute';
|
|
stats.domElement.style.top = '0px';
|
|
//container.appendChild( stats.domElement );
|
|
|
|
onWindowResize();
|
|
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
|
|
|
}
|
|
|
|
function onWindowResize( event ) {
|
|
|
|
uniforms.resolution.value.x = window.innerWidth;
|
|
uniforms.resolution.value.y = window.innerHeight;
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
}
|
|
|
|
function initPostprocessing() {
|
|
|
|
postprocessing.scene = new THREE.Scene();
|
|
|
|
postprocessing.camera = new THREE.Camera();
|
|
postprocessing.camera.projectionMatrix = THREE.Matrix4.makeOrtho( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, -10000, 10000 );
|
|
postprocessing.camera.position.z = 100;
|
|
|
|
var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat };
|
|
postprocessing.rtTexture1 = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, pars );
|
|
postprocessing.rtTexture2 = new THREE.WebGLRenderTarget( 512, 512, pars );
|
|
postprocessing.rtTexture3 = new THREE.WebGLRenderTarget( 512, 512, pars );
|
|
|
|
var screen_shader = THREE.ShaderUtils.lib["screen"];
|
|
var screen_uniforms = THREE.UniformsUtils.clone( screen_shader.uniforms );
|
|
|
|
screen_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
|
|
screen_uniforms["opacity"].value = 1.0;
|
|
|
|
postprocessing.materialScreen = new THREE.MeshShaderMaterial( {
|
|
|
|
uniforms: screen_uniforms,
|
|
vertexShader: screen_shader.vertexShader,
|
|
fragmentShader: screen_shader.fragmentShader,
|
|
blending: THREE.AdditiveBlending,
|
|
transparent: true
|
|
|
|
} );
|
|
|
|
var convolution_shader = THREE.ShaderUtils.lib["convolution"];
|
|
var convolution_uniforms = THREE.UniformsUtils.clone( convolution_shader.uniforms );
|
|
|
|
postprocessing.blurx = new THREE.Vector2( 0.001953125, 0.0 ),
|
|
postprocessing.blury = new THREE.Vector2( 0.0, 0.001953125 );
|
|
|
|
convolution_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
|
|
convolution_uniforms["uImageIncrement"].value = postprocessing.blurx;
|
|
convolution_uniforms["cKernel"].value = THREE.ShaderUtils.buildKernel( 4.0 );
|
|
|
|
postprocessing.materialConvolution = new THREE.MeshShaderMaterial( {
|
|
|
|
uniforms: convolution_uniforms,
|
|
vertexShader: "#define KERNEL_SIZE 25.0\n" + convolution_shader.vertexShader,
|
|
fragmentShader: "#define KERNEL_SIZE 25\n" + convolution_shader.fragmentShader
|
|
|
|
} );
|
|
|
|
var film_shader = THREE.ShaderUtils.lib["film"];
|
|
var film_uniforms = THREE.UniformsUtils.clone( film_shader.uniforms );
|
|
|
|
film_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
|
|
|
|
postprocessing.materialFilm = new THREE.MeshShaderMaterial( { uniforms: film_uniforms, vertexShader: film_shader.vertexShader, fragmentShader: film_shader.fragmentShader } );
|
|
postprocessing.materialFilm.uniforms.grayscale.value = 0;
|
|
postprocessing.materialFilm.uniforms.nIntensity.value = 0.35;
|
|
postprocessing.materialFilm.uniforms.sIntensity.value = 0.95;
|
|
postprocessing.materialFilm.uniforms.sCount.value = 2048;
|
|
|
|
postprocessing.quad = new THREE.Mesh( new THREE.Plane( window.innerWidth, window.innerHeight ), postprocessing.materialConvolution );
|
|
postprocessing.quad.position.z = - 500;
|
|
postprocessing.scene.addObject( postprocessing.quad );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
function render() {
|
|
|
|
uniforms.time.value += 0.02;
|
|
|
|
mesh.rotation.y += 0.00125;
|
|
mesh.rotation.x += 0.005;
|
|
|
|
if ( postprocessing.enabled ) {
|
|
|
|
renderer.clear();
|
|
|
|
// Render scene into texture
|
|
|
|
renderer.render( scene, camera, postprocessing.rtTexture1, true );
|
|
|
|
// Render quad with blured scene into texture (convolution pass 1)
|
|
|
|
postprocessing.quad.materials = [ postprocessing.materialConvolution ];
|
|
|
|
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
|
|
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blurx;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture2, true );
|
|
|
|
// Render quad with blured scene into texture (convolution pass 2)
|
|
|
|
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture2;
|
|
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blury;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture3, true );
|
|
|
|
// Render original scene with superimposed blur to texture
|
|
|
|
postprocessing.quad.materials = [ postprocessing.materialScreen ];
|
|
|
|
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture3;
|
|
postprocessing.materialScreen.uniforms.opacity.value = 1.25;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture1, false );
|
|
|
|
// Render to screen
|
|
|
|
postprocessing.materialFilm.uniforms.time.value += 0.01;
|
|
postprocessing.quad.materials = [ postprocessing.materialFilm ];
|
|
|
|
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
|
|
renderer.render( postprocessing.scene, postprocessing.camera );
|
|
|
|
} else {
|
|
|
|
renderer.clear();
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|