Holographic Projection

Developer
Peter Hrynkow
Size
7,177 Kb
Views
38,456
  1. Holographic Projection Previews
  2. Holographic Projection HTML Codes
  3. Holographic Projection CSS Codes
  4. Holographic Projection JS Codes

How do I make an holographic projection?

What is a holographic projection? How do you make a holographic projection? This script and codes were developed by Peter Hrynkow on 14 September 2022, Wednesday.

Holographic Projection Previews
IQ Test

Holographic Projection - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Holographic Projection</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script src='https://unpkg.com/three'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5.1/dat.gui.min.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/shaders/CopyShader.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/postprocessing/EffectComposer.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/postprocessing/RenderPass.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/postprocessing/ShaderPass.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/shaders/HorizontalBlurShader.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/shaders/VerticalBlurShader.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/shaders/FilmShader.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/shaders/LuminosityHighPassShader.js'></script>
<script src='https://unpkg.com/[email protected]/examples/js/postprocessing/UnrealBloomPass.js'></script>
<script src='https://cdn.rawgit.com/felixturner/bad-tv-shader/master/BadTVShader.js'></script> <script src="js/index.js"></script>
</body>
</html>

Holographic Projection - Script Codes CSS Codes

body{ background: #000;
}
canvas{ display: block;
}

Holographic Projection - Script Codes JS Codes

"use strict";
THREE.VolumetericLightShader = { uniforms: { tDiffuse: { value: null }, lightPosition: { value: new THREE.Vector2(0.5, 0.5) }, exposure: { value: 1 }, decay: { value: 1 }, density: { value: 6 }, weight: { value: 0.57 }, samples: { value: 30 } }, vertexShader: ["varying vec2 vUv;", "void main() {", "vUv = uv;", "gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);", "}"].join("\n"), fragmentShader: ["varying vec2 vUv;", "uniform sampler2D tDiffuse;", "uniform vec2 lightPosition;", "uniform float exposure;", "uniform float decay;", "uniform float density;", "uniform float weight;", "uniform int samples;", "const int MAX_SAMPLES = 100;", "void main()", "{", "vec2 texCoord = vUv;", "vec2 deltaTextCoord = texCoord - lightPosition;", "deltaTextCoord *= 1.0 / float(samples) * density;", "vec4 color = texture2D(tDiffuse, texCoord);", "float illuminationDecay = 1.0;", "for(int i=0; i < MAX_SAMPLES; i++)", "{", "if(i == samples) {", "break;", "}", "texCoord += deltaTextCoord;", "vec4 sample = texture2D(tDiffuse, texCoord);", "sample *= illuminationDecay * weight;", "color += sample;", "illuminationDecay *= decay;", "}", "gl_FragColor = color * exposure;", "}"].join("\n")
};
THREE.AdditiveBlendingShader = { uniforms: { tDiffuse: { value: null }, tAdd: { value: null } }, vertexShader: ["varying vec2 vUv;", "void main() {", "vUv = uv;", "gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);", "}"].join("\n"), fragmentShader: ["uniform sampler2D tDiffuse;", "uniform sampler2D tAdd;", "varying vec2 vUv;", "void main() {", "vec4 color = texture2D(tDiffuse, vUv);", "vec4 add = texture2D(tAdd, vUv);", "gl_FragColor = color + add;", "}"].join("\n")
};
THREE.PassThroughShader = { uniforms: { tDiffuse: { value: null } }, vertexShader: ["varying vec2 vUv;", "void main() {", "vUv = uv;", "gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);", "}"].join("\n"), fragmentShader: ["uniform sampler2D tDiffuse;", "varying vec2 vUv;", "void main() {", "gl_FragColor = texture2D(tDiffuse, vec2(vUv.x, vUv.y));", "}"].join("\n")
};
var getImageTexture = function getImageTexture(image) { var density = arguments.length <= 1 || arguments[1] === undefined ? 1 : arguments[1]; var canvas = document.createElement('canvas'); var ctx = canvas.getContext('2d'); var width = image.width; var height = image.height; canvas.setAttribute('width', width * density); canvas.setAttribute('height', height * density); canvas.style.width = width + "px"; canvas.style.height = height + "px"; ctx.drawImage(image, 0, 0, width * density, height * density); return canvas;
};
var width = 1280;
var height = 720;
var lightColor = 0x0099ff;
var DEFAULT_LAYER = 0;
var OCCLUSION_LAYER = 1;
var renderScale = .25;
var gui = new dat.GUI();
var clock = new THREE.Clock();
var composer = undefined, filmPass = undefined, badTVPass = undefined, bloomPass = undefined, occlusionComposer = undefined, itemMesh = undefined, occMesh = undefined, occRenderTarget = undefined, lightSource = undefined, vlShaderUniforms = undefined;
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, width / height, 0.1, 1000);
var renderer = new THREE.WebGLRenderer({ antialias: false
});
renderer.setSize(width, height);
document.body.appendChild(renderer.domElement);
function setupScene() { lightSource = new THREE.Object3D(); lightSource.position.x = 0; lightSource.position.y = -15; lightSource.position.z = -15; var itemGeo = new THREE.PlaneGeometry(9, 2.1); var itemMaterial = new THREE.MeshBasicMaterial({ transparent: true, opacity: 0.7 }); var img = new Image(); img.src = 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/13307/blaster.png'; img.crossOrigin = 'Anonymous'; img.onload = function () { var itemTexture = new THREE.Texture(getImageTexture(img), null, THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping, null, THREE.LinearFilter); itemTexture.needsUpdate = true; itemMaterial.map = itemTexture; itemMesh = new THREE.Mesh(itemGeo, itemMaterial); scene.add(itemMesh); var occItemMaterial = new THREE.MeshBasicMaterial({ color: lightColor }); occItemMaterial.map = itemTexture; occMesh = new THREE.Mesh(itemGeo, occItemMaterial); occMesh.layers.set(OCCLUSION_LAYER); scene.add(occMesh); }; camera.position.z = 4.5;
}
function setupPostprocessing() { occRenderTarget = new THREE.WebGLRenderTarget(width * renderScale, height * renderScale); // Blur passes var hBlur = new THREE.ShaderPass(THREE.HorizontalBlurShader); var vBlur = new THREE.ShaderPass(THREE.VerticalBlurShader); var bluriness = 7; hBlur.uniforms.h.value = bluriness / width; vBlur.uniforms.v.value = bluriness / height; // Bad TV Pass badTVPass = new THREE.ShaderPass(THREE.BadTVShader); badTVPass.uniforms.distortion.value = 1.9; badTVPass.uniforms.distortion2.value = 1.2; badTVPass.uniforms.speed.value = 0.1; badTVPass.uniforms.rollSpeed.value = 0; // Volumetric Light Pass var vlPass = new THREE.ShaderPass(THREE.VolumetericLightShader); vlShaderUniforms = vlPass.uniforms; vlPass.needsSwap = false; // Occlusion Composer occlusionComposer = new THREE.EffectComposer(renderer, occRenderTarget); occlusionComposer.addPass(new THREE.RenderPass(scene, camera)); occlusionComposer.addPass(hBlur); occlusionComposer.addPass(vBlur); occlusionComposer.addPass(hBlur); occlusionComposer.addPass(vBlur); occlusionComposer.addPass(hBlur); occlusionComposer.addPass(badTVPass); occlusionComposer.addPass(vlPass); // Bloom pass bloomPass = new THREE.UnrealBloomPass(width / height, 0.5, .8, .3); // Film pass filmPass = new THREE.ShaderPass(THREE.FilmShader); filmPass.uniforms.sCount.value = 1200; filmPass.uniforms.grayscale.value = false; filmPass.uniforms.sIntensity.value = 1.5; filmPass.uniforms.nIntensity.value = 0.2; // Blend occRenderTarget into main render target var blendPass = new THREE.ShaderPass(THREE.AdditiveBlendingShader); blendPass.uniforms.tAdd.value = occRenderTarget.texture; blendPass.renderToScreen = true; // Main Composer composer = new THREE.EffectComposer(renderer); composer.addPass(new THREE.RenderPass(scene, camera)); composer.addPass(bloomPass); composer.addPass(badTVPass); composer.addPass(filmPass); composer.addPass(blendPass);
}
function onFrame() { requestAnimationFrame(onFrame); update(); render();
}
function update() { var timeDelta = clock.getDelta(); var elapsed = clock.getElapsedTime(); filmPass.uniforms.time.value += timeDelta; badTVPass.uniforms.time.value += 0.01; if (itemMesh) { itemMesh.rotation.y = Math.sin(elapsed / 2) / 15; itemMesh.rotation.z = Math.cos(elapsed / 2) / 50; occMesh.rotation.copy(itemMesh.rotation); }
}
function render() { camera.layers.set(OCCLUSION_LAYER); //renderer.setClearColor(0x000000); occlusionComposer.render(); camera.layers.set(DEFAULT_LAYER); //renderer.setClearColor(0x000000); composer.render();
}
function setupGUI() { var folder = undefined, min = undefined, max = undefined, step = undefined, updateShaderLight = function updateShaderLight() { var p = lightSource.position.clone(), vector = p.project(camera), x = (vector.x + 1) / 2, y = (vector.y + 1) / 2; vlShaderUniforms.lightPosition.value.set(x, y); }; updateShaderLight(); // Bloom Controls folder = gui.addFolder('Bloom'); folder.add(bloomPass, 'radius').min(0).max(10).name('Radius'); folder.add(bloomPass, 'threshold').min(0).max(1).name('Threshold'); folder.add(bloomPass, 'strength').min(0).max(10).name('Strength'); folder.open(); // Bad TV Controls folder = gui.addFolder('TV'); folder.add(badTVPass.uniforms.distortion, 'value').min(0).max(10).name('Distortion 1'); folder.add(badTVPass.uniforms.distortion2, 'value').min(0).max(10).name('Distortion 2'); folder.add(badTVPass.uniforms.speed, 'value').min(0).max(1).name('Speed'); folder.add(badTVPass.uniforms.rollSpeed, 'value').min(0).max(10).name('Roll Speed'); folder.open(); // Light Controls folder = gui.addFolder('Light Position'); folder.add(lightSource.position, 'x').min(-50).max(50).onChange(updateShaderLight); folder.add(lightSource.position, 'y').min(-50).max(50).onChange(updateShaderLight); folder.add(lightSource.position, 'z').min(-50).max(50).onChange(updateShaderLight); folder.open(); // Volumetric Light Controls folder = gui.addFolder('Volumeteric Light Shader'); folder.add(vlShaderUniforms.exposure, 'value').min(0).max(1).name('Exposure'); folder.add(vlShaderUniforms.decay, 'value').min(0).max(1).name('Decay'); folder.add(vlShaderUniforms.density, 'value').min(0).max(10).name('Density'); folder.add(vlShaderUniforms.weight, 'value').min(0).max(1).name('Weight'); folder.add(vlShaderUniforms.samples, 'value').min(1).max(100).name('Samples'); folder.open();
}
function addRenderTargetImage() { var material = new THREE.ShaderMaterial(THREE.PassThroughShader); material.uniforms.tDiffuse.value = occRenderTarget.texture; var mesh = new THREE.Mesh(new THREE.PlaneBufferGeometry(2, 2), material); composer.passes[1].scene.add(mesh); mesh.visible = false; var folder = gui.addFolder('Light Pass Render Image'); folder.add(mesh, 'visible'); folder.open();
}
setupScene();
setupPostprocessing();
onFrame();
setupGUI();
addRenderTargetImage();
Holographic Projection - Script Codes
Holographic Projection - Script Codes
Home Page Home
Developer Peter Hrynkow
Username peterhry
Uploaded September 14, 2022
Rating 3
Size 7,177 Kb
Views 38,456
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