3D Webdesign: The next frontier

<!DOCTYPE html>
<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js - kinect</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>

		<script src="../build/three.js"></script>

		<script src='js/libs/dat.gui.min.js'></script>
		<script src="js/libs/stats.min.js"></script>
		<script src="js/WebGL.js"></script>

		<video id="video" loop muted crossOrigin="anonymous" webkit-playsinline style="display:none">
			<source src="textures/kinect.webm">
			<source src="textures/kinect.mp4">
		</video>

		<script id="vs" type="x-shader/x-vertex">

			uniform sampler2D map;

			uniform float width;
			uniform float height;
			uniform float nearClipping, farClipping;

			uniform float pointSize;
			uniform float zOffset;

			varying vec2 vUv;

			const float XtoZ = 1.11146; // tan( 1.0144686 / 2.0 ) * 2.0;
			const float YtoZ = 0.83359; // tan( 0.7898090 / 2.0 ) * 2.0;

			void main() {

				vUv = vec2( position.x / width, position.y / height );

				vec4 color = texture2D( map, vUv );
				float depth = ( color.r + color.g + color.b ) / 3.0;

				// Projection code by @kcmic

				float z = ( 1.0 - depth ) * (farClipping - nearClipping) + nearClipping;

				vec4 pos = vec4(
					( position.x / width - 0.5 ) * z * XtoZ,
					( position.y / height - 0.5 ) * z * YtoZ,
					- z + zOffset,
					1.0);

				gl_PointSize = pointSize;
				gl_Position = projectionMatrix * modelViewMatrix * pos;

			}

		</script>

		<script id="fs" type="x-shader/x-fragment">

			uniform sampler2D map;

			varying vec2 vUv;

			void main() {

				vec4 color = texture2D( map, vUv );
				gl_FragColor = vec4( color.r, color.g, color.b, 0.2 );

			}

		</script>

		<script>

			var container;

			var scene, camera, renderer;
			var geometry, mesh, material;
			var mouse, center;
			var stats;

			if ( WEBGL.isWebGLAvailable() ) {

				init();
				animate();

			} else {

				document.body.appendChild( WEBGL.getWebGLErrorMessage() );

			}

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				var info = document.createElement( 'div' );
				info.id = 'info';
				info.innerHTML = '<a href="http://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - kinect';
				document.body.appendChild( info );

				stats = new Stats();
				// container.appendChild( stats.dom );

				camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.set( 0, 0, 500 );

				scene = new THREE.Scene();
				center = new THREE.Vector3();
				center.z = - 1000;

				var video = document.getElementById( 'video' );
				video.addEventListener( 'loadedmetadata', function () {

					var texture = new THREE.VideoTexture( video );
					texture.minFilter = THREE.NearestFilter;

					var width = 640, height = 480;
					var nearClipping = 850, farClipping = 4000;

					geometry = new THREE.BufferGeometry();

					var vertices = new Float32Array( width * height * 3 );

					for ( var i = 0, j = 0, l = vertices.length; i < l; i += 3, j ++ ) {

						vertices[ i ] = j % width;
						vertices[ i + 1 ] = Math.floor( j / width );

					}

					geometry.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );

					material = new THREE.ShaderMaterial( {

						uniforms: {

							"map": { value: texture },
							"width": { value: width },
							"height": { value: height },
							"nearClipping": { value: nearClipping },
							"farClipping": { value: farClipping },

							"pointSize": { value: 2 },
							"zOffset": { value: 1000 }

						},
						vertexShader: document.getElementById( 'vs' ).textContent,
						fragmentShader: document.getElementById( 'fs' ).textContent,
						blending: THREE.AdditiveBlending,
						depthTest: false, depthWrite: false,
						transparent: true

					} );

					mesh = new THREE.Points( geometry, material );
					scene.add( mesh );

					var gui = new dat.GUI();
					gui.add( material.uniforms.nearClipping, 'value', 1, 10000, 1.0 ).name( 'nearClipping' );
					gui.add( material.uniforms.farClipping, 'value', 1, 10000, 1.0 ).name( 'farClipping' );
					gui.add( material.uniforms.pointSize, 'value', 1, 10, 1.0 ).name( 'pointSize' );
					gui.add( material.uniforms.zOffset, 'value', 0, 4000, 1.0 ).name( 'zOffset' );
					gui.close();


				}, false );

				video.play();

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				mouse = new THREE.Vector3( 0, 0, 1 );

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function onDocumentMouseMove( event ) {

				mouse.x = ( event.clientX - window.innerWidth / 2 ) * 8;
				mouse.y = ( event.clientY - window.innerHeight / 2 ) * 8;

			}

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				camera.position.x += ( mouse.x - camera.position.x ) * 0.05;
				camera.position.y += ( - mouse.y - camera.position.y ) * 0.05;
				camera.lookAt( center );

				renderer.render( scene, camera );

			}

		</script>
	</body>
</html>
Source: https://threejs.org

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

<!DOCTYPE html>

<head>

<title>three.js - kinect</title>

</head>

<body>

</video>

uniform sampler2D map;

uniform float width;

uniform float height;

uniform float nearClipping, farClipping;

uniform float pointSize;

uniform float zOffset;

varying vec2 vUv;

const float XtoZ = 1.11146; // tan( 1.0144686 / 2.0 ) * 2.0;

const float YtoZ = 0.83359; // tan( 0.7898090 / 2.0 ) * 2.0;

void main() {

vUv = vec2( position.x / width, position.y / height );

vec4 color = texture2D( map, vUv );

float depth = ( color.r + color.g + color.b ) / 3.0;

// Projection code by @kcmic

float z = ( 1.0 - depth ) * (farClipping - nearClipping) + nearClipping;

vec4 pos = vec4(

( position.x / width - 0.5 ) * z * XtoZ,

( position.y / height - 0.5 ) * z * YtoZ,

- z + zOffset,

1.0);

gl_PointSize = pointSize;

gl_Position = projectionMatrix * modelViewMatrix * pos;

}

</script>

uniform sampler2D map;

varying vec2 vUv;

void main() {

vec4 color = texture2D( map, vUv );

gl_FragColor = vec4( color.r, color.g, color.b, 0.2 );

}

</script>

var container;

var scene, camera, renderer;

var geometry, mesh, material;

var mouse, center;

var stats;

if ( WEBGL.isWebGLAvailable() ) {

init();

animate();

} else {

document.body.appendChild( WEBGL.getWebGLErrorMessage() );

}

function init() {

container = document.createElement( 'div' );

document.body.appendChild( container );

var info = document.createElement( 'div' );

info.id = 'info';

info.innerHTML = '<a href="http://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - kinect';

document.body.appendChild( info );

stats = new Stats();

// container.appendChild( stats.dom );

camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 10000 );

camera.position.set( 0, 0, 500 );

scene = new THREE.Scene();

center = new THREE.Vector3();

center.z = - 1000;

var video = document.getElementById( 'video' );

video.addEventListener( 'loadedmetadata', function () {

var texture = new THREE.VideoTexture( video );

texture.minFilter = THREE.NearestFilter;

var width = 640, height = 480;

var nearClipping = 850, farClipping = 4000;

geometry = new THREE.BufferGeometry();

var vertices = new Float32Array( width * height * 3 );

for ( var i = 0, j = 0, l = vertices.length; i < l; i += 3, j ++ ) {

vertices[ i ] = j % width;

vertices[ i + 1 ] = Math.floor( j / width );

}

geometry.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );

material = new THREE.ShaderMaterial( {

uniforms: {

"map": { value: texture },

"width": { value: width },

"height": { value: height },

"nearClipping": { value: nearClipping },

"farClipping": { value: farClipping },

"pointSize": { value: 2 },

"zOffset": { value: 1000 }

vertexShader: document.getElementById( 'vs' ).textContent,

fragmentShader: document.getElementById( 'fs' ).textContent,

blending: THREE.AdditiveBlending,

depthTest: false, depthWrite: false,

transparent: true

} );

mesh = new THREE.Points( geometry, material );

scene.add( mesh );

var gui = new dat.GUI();

gui.add( material.uniforms.nearClipping, 'value', 1, 10000, 1.0 ).name( 'nearClipping' );

gui.add( material.uniforms.farClipping, 'value', 1, 10000, 1.0 ).name( 'farClipping' );

gui.add( material.uniforms.pointSize, 'value', 1, 10, 1.0 ).name( 'pointSize' );

gui.add( material.uniforms.zOffset, 'value', 0, 4000, 1.0 ).name( 'zOffset' );

gui.close();

}, false );

video.play();

renderer = new THREE.WebGLRenderer();

renderer.setPixelRatio( window.devicePixelRatio );

renderer.setSize( window.innerWidth, window.innerHeight );

container.appendChild( renderer.domElement );

mouse = new THREE.Vector3( 0, 0, 1 );

document.addEventListener( 'mousemove', onDocumentMouseMove, false );

window.addEventListener( 'resize', onWindowResize, false );

}

function onWindowResize() {

camera.aspect = window.innerWidth / window.innerHeight;

camera.updateProjectionMatrix();

renderer.setSize( window.innerWidth, window.innerHeight );

}

function onDocumentMouseMove( event ) {

mouse.x = ( event.clientX - window.innerWidth / 2 ) * 8;

mouse.y = ( event.clientY - window.innerHeight / 2 ) * 8;

}

function animate() {

requestAnimationFrame( animate );

render();

stats.update();

}

function render() {

camera.position.x += ( mouse.x - camera.position.x ) * 0.05;

camera.position.y += ( - mouse.y - camera.position.y ) * 0.05;

camera.lookAt( center );

renderer.render( scene, camera );

}

</script>

</body>

</html>

Source: https://threejs.org

Leave a Reply Cancel reply