Hello, I wanted to know how I can add an image in this code that makes use of the three.js library. I would like to add it and make that same effect of the Bad TV Shader site ( link ) can generate noise and such as an old TV. On the website, the effect is accomplished by adding a video. In my case, I wanted to change the code and add an image.
See the code:
<script>
//Bad TV Effect Demo
//Using Three.js r.66
//by Felix Turner / www.airtight.cc / @felixturner
var camera, scene, renderer;
var video, videoTexture,videoMaterial;
var composer;
var shaderTime = 0;
var badTVParams, badTVPass;
var staticParams, staticPass;
var rgbParams, rgbPass;
var filmParams, filmPass;
var renderPass, copyPass;
var gui;
var pnoise, globalParams;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera(55, 1080/ 720, 20, 3000);
camera.position.z = 1000;
scene = new THREE.Scene();
//Load Video
video = document.createElement( 'video' );
video.loop = true;
video.src = "res/fits.mp4";
video.play();
//Use webcam
// video = document.createElement('video');
// video.width = 320;
// video.height = 240;
// video.autoplay = true;
// video.loop = true;
// //Webcam video
// window.URL = window.URL || window.webkitURL;
// navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
// //get webcam
// navigator.getUserMedia({
// video: true
// }, function(stream) {
// //on webcam enabled
// video.src = window.URL.createObjectURL(stream);
// }, function(error) {
// prompt.innerHTML = 'Unable to capture WebCam. Please reload the page.';
// });
//init video texture
videoTexture = new THREE.Texture( video );
videoTexture.minFilter = THREE.LinearFilter;
videoTexture.magFilter = THREE.LinearFilter;
videoMaterial = new THREE.MeshBasicMaterial( {
map: videoTexture
} );
//Add video plane
var planeGeometry = new THREE.PlaneGeometry( 1080, 720,1,1 );
var plane = new THREE.Mesh( planeGeometry, videoMaterial );
scene.add( plane );
plane.z = 0;
plane.scale.x = plane.scale.y = 1.45;
//add stats
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
//init renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize( 800, 600 );
document.body.appendChild( renderer.domElement );
//POST PROCESSING
//Create Shader Passes
renderPass = new THREE.RenderPass( scene, camera );
badTVPass = new THREE.ShaderPass( THREE.BadTVShader );
rgbPass = new THREE.ShaderPass( THREE.RGBShiftShader );
filmPass = new THREE.ShaderPass( THREE.FilmShader );
staticPass = new THREE.ShaderPass( THREE.StaticShader );
copyPass = new THREE.ShaderPass( THREE.CopyShader );
//set shader uniforms
filmPass.uniforms[ "grayscale" ].value = 0;
//Init DAT GUI control panel
badTVParams = {
mute:true,
show: true,
distortion: 3.0,
distortion2: 1.0,
speed: 0.3,
rollSpeed: 0.1
}
staticParams = {
show: true,
amount:0.5,
size2:4.0
}
rgbParams = {
show: true,
amount: 0.005,
angle: 0.0,
}
filmParams = {
show: true,
count: 800,
sIntensity: 0.9,
nIntensity: 0.4
}
gui = new dat.GUI();
gui.add(badTVParams, 'mute').onChange(onToggleMute);
var f1 = gui.addFolder('Bad TV');
f1.add(badTVParams, 'show').onChange(onToggleShaders);
f1.add(badTVParams, 'distortion', 0.1, 20).step(0.1).listen().name("Thick Distort").onChange(onParamsChange);
f1.add(badTVParams, 'distortion2', 0.1, 20).step(0.1).listen().name("Fine Distort").onChange(onParamsChange);
f1.add(badTVParams, 'speed', 0.0,1.0).step(0.01).listen().name("Distort Speed").onChange(onParamsChange);
f1.add(badTVParams, 'rollSpeed', 0.0,1.0).step(0.01).listen().name("Roll Speed").onChange(onParamsChange);
f1.open();
var f2 = gui.addFolder('RGB Shift');
f2.add(rgbParams, 'show').onChange(onToggleShaders);
f2.add(rgbParams, 'amount', 0.0, 0.1).listen().onChange(onParamsChange);
f2.add(rgbParams, 'angle', 0.0, 2.0).listen().onChange(onParamsChange);
f2.open();
var f4 = gui.addFolder('Static');
f4.add(staticParams, 'show').onChange(onToggleShaders);
f4.add(staticParams, 'amount', 0.0,1.0).step(0.01).listen().onChange(onParamsChange);
f4.add(staticParams, 'size2', 1.0,100.0).step(1.0).onChange(onParamsChange);
f4.open();
var f3 = gui.addFolder('Scanlines');
f3.add(filmParams, 'show').onChange(onToggleShaders);
f3.add(filmParams, 'count', 50, 1000).onChange(onParamsChange);
f3.add(filmParams, 'sIntensity', 0.0, 2.0).step(0.1).onChange(onParamsChange);
f3.add(filmParams, 'nIntensity', 0.0, 2.0).step(0.1).onChange(onParamsChange);
f3.open();
gui.close();
onToggleShaders();
onToggleMute();
onParamsChange();
window.addEventListener('resize', onResize, false);
renderer.domElement.addEventListener('click', randomizeParams, false);
onResize();
randomizeParams();
}
function onParamsChange() {
//copy gui params into shader uniforms
badTVPass.uniforms[ "distortion" ].value = badTVParams.distortion;
badTVPass.uniforms[ "distortion2" ].value = badTVParams.distortion2;
badTVPass.uniforms[ "speed" ].value = badTVParams.speed;
badTVPass.uniforms[ "rollSpeed" ].value = badTVParams.rollSpeed;
staticPass.uniforms[ "amount" ].value = staticParams.amount;
staticPass.uniforms[ "size" ].value = staticParams.size2;
rgbPass.uniforms[ "angle" ].value = rgbParams.angle*Math.PI;
rgbPass.uniforms[ "amount" ].value = rgbParams.amount;
filmPass.uniforms[ "sCount" ].value = filmParams.count;
filmPass.uniforms[ "sIntensity" ].value = filmParams.sIntensity;
filmPass.uniforms[ "nIntensity" ].value = filmParams.nIntensity;
}
function randomizeParams() {
if (Math.random() <0.2){
//you fixed it!
badTVParams.distortion = 0.1;
badTVParams.distortion2 =0.1;
badTVParams.speed =0;
badTVParams.rollSpeed =0;
rgbParams.angle = 0;
rgbParams.amount = 0;
staticParams.amount = 0;
}else{
badTVParams.distortion = Math.random()*10+0.1;
badTVParams.distortion2 =Math.random()*10+0.1;
badTVParams.speed =Math.random()*.4;
badTVParams.rollSpeed =Math.random()*.2;
rgbParams.angle = Math.random()*2;
rgbParams.amount = Math.random()*0.03;
staticParams.amount = Math.random()*0.2;
}
onParamsChange();
}
function onToggleMute(){
video.volume = badTVParams.mute ? 0 : 1;
}
function onToggleShaders(){
//Add Shader Passes to Composer
//order is important
composer = new THREE.EffectComposer( renderer);
composer.addPass( renderPass );
if (filmParams.show){
composer.addPass( filmPass );
}
if (badTVParams.show){
composer.addPass( badTVPass );
}
if (rgbParams.show){
composer.addPass( rgbPass );
}
if (staticParams.show){
composer.addPass( staticPass );
}
composer.addPass( copyPass );
copyPass.renderToScreen = true;
}
function animate() {
shaderTime += 0.1;
badTVPass.uniforms[ 'time' ].value = shaderTime;
filmPass.uniforms[ 'time' ].value = shaderTime;
staticPass.uniforms[ 'time' ].value = shaderTime;
if ( video.readyState === video.HAVE_ENOUGH_DATA ) {
if ( videoTexture ) videoTexture.needsUpdate = true;
}
requestAnimationFrame( animate );
composer.render( 0.1);
stats.update();
}
function onResize() {
renderer.setSize(window.innerWidth, window.innerHeight);
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
}
</script>
If you can help me, I thank you very much. It's been a long time since I've been trying to reach that goal. I do not have much knowledge of three.js or javascript.