diff --git a/index.html b/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..bc519e5a955d792057e4e5dde4f8585e15a47d67
--- /dev/null
+++ b/index.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>CG Course Final Project</title>
+ <style>
+ body {
+ margin: 0;
+ overflow: hidden;
+ }
+ </style>
+</head>
+<body>
+ <div id="container"></div>
+
+ <script type="importmap">
+ {
+ "imports": {
+ "three": "../build/three.module.js"
+ }
+ }
+ </script>
+ <script type="module" src="script.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/models/tree.obj b/models/tree.obj
new file mode 100644
index 0000000000000000000000000000000000000000..b2d63a5f4f04a72bd215edf96a55409ca68ee2ea
--- /dev/null
+++ b/models/tree.obj
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diff --git a/script.js b/script.js
new file mode 100644
index 0000000000000000000000000000000000000000..09cfba2b81cc0ff367bf74b04a27a56048532220
--- /dev/null
+++ b/script.js
@@ -0,0 +1,523 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
+import { ShaderPass } from './jsm/postprocessing/ShaderPass.js';
+
+const WeightShader = {
+ uniforms: {
+ 'depthMap': { value: null }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D depthMap;
+
+ void main() {
+ float depth = 1.0 - texture2D(depthMap, texCoord).x;
+ float weight = (depth == 0.0) ? 0.3 : 0.0;
+
+ gl_FragColor = vec4(weight, weight, weight, 1.0);
+ }`
+};
+const LightShaftShader = {
+ uniforms: {
+ 'originalRTMap': { value: null },
+ 'weightRTMap': { value: null },
+ 'lightPosition': { value: new Vector3() },
+ 'rayColor': { value: new Color() },
+ 'stepCount': { value: 0 }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D originalRTMap;
+ uniform sampler2D weightRTMap;
+ uniform vec3 lightPosition;
+ uniform vec3 rayColor;
+ uniform int stepCount;
+
+ void main() {
+ float initDecay = 0.2;
+ float distDecay = 0.8;
+
+ vec4 albedo = texture2D(originalRTMap, texCoord);
+
+ vec2 dirToLight = lightPosition.xy - texCoord;
+ float lengthToLight = length(dirToLight);
+ dirToLight /= lengthToLight;
+
+ float deltaLength = min(0.005, lengthToLight * 1.0 / float(stepCount - 1));
+
+ vec2 rayOffset = vec2(0.0, 0.0);
+ vec2 rayDelta = dirToLight * deltaLength;
+ float rayIntensity = 0.0;
+ float stepDecay = distDecay * deltaLength;
+ float currentDecay = initDecay;
+ float currentIntensity = 0.0;
+
+ for (int i = 0; i < stepCount; ++i)
+ {
+ currentIntensity = texture2D(weightRTMap, texCoord + rayOffset).x;
+
+ rayOffset += rayDelta;
+ rayIntensity += currentIntensity * currentDecay;
+ currentDecay = clamp(currentDecay - stepDecay, 0.0, 1.0);
+ }
+
+ albedo.rgb = clamp(albedo.rgb + (rayColor * rayIntensity), 0.0, 1.0);
+
+ gl_FragColor = albedo;
+ }`
+};
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultRayLength: 1,
+ defaultRayColor: new Color(0x444444),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ rayLengthMultiplier: 24,
+ maxSunDistance: 600,
+ autoSunMoveSpeed: 0.5,
+ autoCameraMoveSpeed: 0.3,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ presets: 'default',
+ sunObject: 'Sphere',
+ autoSunMove: false,
+ autoCameraMove: false,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ rayLength: constants.defaultRayLength,
+ rayColor: constants.defaultRayColor,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const clock = new THREE.Clock();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let originalRT, weightRT;
+ let weightComposer, lightShaftComposer;
+ let weightPass, lightShaftPass;
+ let ambientLight, directionalLight;
+ let sunObject;
+ let sunTime = 0;
+ let cameraTime = 0;
+ let fantasyTime = 0;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createRenderTargets();
+ createPasses();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+
+ const deltaTime = clock.getDelta();
+
+ if (controls.autoSunMove) {
+ sunObject.position.x = Math.sin(sunTime) * 500;
+ directionalLight.position.x = sunObject.position.x;
+ controls.sunPositionX = sunObject.position.x;
+
+ sunTime += deltaTime * constants.autoSunMoveSpeed;
+ sunTime = (sunTime >= Math.PI * 2) ? sunTime - Math.PI * 2 : sunTime;
+ }
+ if (controls.autoCameraMove) {
+ camera.position.x = Math.sin(cameraTime) * 300;
+
+ cameraTime += deltaTime * constants.autoCameraMoveSpeed;
+ cameraTime = (cameraTime >= Math.PI * 2) ? cameraTime - Math.PI * 2 : cameraTime;
+ }
+ if (controls.presets == 'fantasy') {
+ const color = new Color(0x874089);
+ const wave = (Math.cos(fantasyTime) + 1) * 0.5;
+
+ color.r = THREE.MathUtils.clamp(color.r * wave, 0, 1);
+ color.g = THREE.MathUtils.clamp(color.g * wave, 0, 1);
+ color.b = THREE.MathUtils.clamp(color.b * wave, 0, 1);
+
+ controls.backgroundColor = color;
+ controls.sunColor = color;
+
+ renderer.setClearColor(color, 1);
+ sunObject.material.color = color;
+
+ fantasyTime += deltaTime;
+ fantasyTime = (fantasyTime >= Math.PI * 2) ? fantasyTime - Math.PI * 2 : fantasyTime;
+ }
+
+ const uvSunPosition = new Vector3();
+ uvSunPosition.copy(directionalLight.position);
+
+ uvSunPosition.project(camera);
+ uvSunPosition.x = (uvSunPosition.x + 1) * 0.5;
+ uvSunPosition.y = (uvSunPosition.y + 1) * 0.5;
+
+ lightShaftPass.uniforms['lightPosition'].value = uvSunPosition;
+ }
+ function render() {
+ renderer.setRenderTarget(originalRT);
+ renderer.render(scene, camera);
+ renderer.setRenderTarget(null);
+
+ weightComposer.render(scene, camera);
+ lightShaftComposer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createRenderTargets() {
+ originalRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ originalRT.depthTexture = new THREE.DepthTexture();
+ originalRT.depthTexture.format = THREE.DepthFormat;
+ originalRT.depthTexture.type = THREE.UnsignedShortType;
+
+ weightRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ }
+ function createPasses() {
+ weightComposer = new EffectComposer(renderer, weightRT);
+ weightComposer.renderToScreen = false;
+
+ weightPass = new ShaderPass(WeightShader);
+ weightPass.uniforms['depthMap'].value = originalRT.depthTexture;
+ weightComposer.addPass(weightPass);
+
+ lightShaftComposer = new EffectComposer(renderer);
+
+ lightShaftPass = new ShaderPass(LightShaftShader);
+ lightShaftPass.uniforms['originalRTMap'].value = originalRT.texture;
+ lightShaftPass.uniforms['weightRTMap'].value = weightRT.texture;
+ lightShaftPass.uniforms['lightPosition'].value = new Vector3();
+ lightShaftPass.uniforms['rayColor'].value = constants.defaultRayColor;
+ lightShaftPass.uniforms['stepCount'].value = Math.round(constants.defaultRayLength * constants.rayLengthMultiplier);
+ lightShaftComposer.addPass(lightShaftPass);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/obj/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+ generalFolder.add(controls, 'presets', ['default', 'afternoon', 'sunset', 'night', 'eclipse', 'fantasy']).listen().onChange(function (value) {
+ switch (value) {
+ case 'default':
+ changePreset(
+ constants.defaultBackgroundColor,
+ constants.defaultAmbientLightColor,
+ constants.defaultDirectionalLightColor, 1,
+ constants.defaultSunColor,
+ constants.maxSunDistance,
+ 1, constants.defaultRayColor);
+ break;
+ case 'afternoon':
+ changePreset(
+ new Color(0x40829c),
+ new Color(0x51411f),
+ new Color(0x948161), 1,
+ new Color(0xe1f8fe),
+ constants.maxSunDistance,
+ 1.5, new Color(0x3e6a8e));
+ break;
+ case 'sunset':
+ changePreset(
+ new Color(0xc39737),
+ new Color(0x3e3418),
+ new Color(0x3e3418), 1,
+ new Color(0xff9242),
+ 50,
+ 2, new Color(0x873636));
+ break;
+ case 'night':
+ changePreset(
+ new Color(0x252837),
+ new Color(0x201f2e),
+ new Color(0x2c2d44), 0.4,
+ new Color(0x8282c7),
+ constants.maxSunDistance,
+ 0.8, new Color(0x111122));
+ break;
+ case 'eclipse':
+ changePreset(
+ new Color(0x140505),
+ new Color(0x773131),
+ new Color(0x202010), 1,
+ new Color(0x222222),
+ constants.maxSunDistance,
+ 2, new Color(0x460c0c));
+ break;
+ case 'fantasy':
+ changePreset(
+ new Color(0x874089),
+ new Color(0x40387a),
+ new Color(0x9a4747), 1,
+ new Color(0x874089),
+ constants.maxSunDistance,
+ 2, new Color(0x557799));
+ break;
+ }
+ });
+ generalFolder.add(controls, 'sunObject', ['sphere', 'lisaSu', 'cat', 'none']).listen().onChange(function (value) {
+ const textureLoader = new THREE.TextureLoader();
+ let planeGeometry;
+ let planeMaterial;
+ let planeTexture;
+
+ scene.remove(sunObject);
+
+ switch (value) {
+ case 'sphere':
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ sunObject.scale.multiplyScalar(40);
+
+ scene.add(sunObject);
+ break;
+ case 'lisaSu':
+ planeTexture = textureLoader.load('https://miro.medium.com/proxy/0*pKN_ICbi7lzXWgcN.png');
+ planeGeometry = new THREE.PlaneGeometry(175, 100);
+ planeMaterial = new THREE.MeshBasicMaterial({
+ map: planeTexture
+ });
+
+ sunObject = new THREE.Mesh(planeGeometry, planeMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ scene.add(sunObject);
+ break;
+ case 'cat':
+ planeTexture = textureLoader.load('https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Kittyply_edit1.jpg/220px-Kittyply_edit1.jpg');
+ planeGeometry = new THREE.PlaneGeometry(173, 115);
+ planeMaterial = new THREE.MeshBasicMaterial({
+ map: planeTexture
+ });
+
+ sunObject = new THREE.Mesh(planeGeometry, planeMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ scene.add(sunObject);
+ break;
+ }
+
+ sunObject.material.color = controls.sunColor;
+ });
+ generalFolder.add(controls, 'autoSunMove').listen();
+ generalFolder.add(controls, 'autoCameraMove').listen();
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+ lightFolder.add(controls, 'rayLength', 0, 2).listen().onChange(function (value) {
+ lightShaftPass.uniforms['stepCount'].value = Math.round(value * constants.rayLengthMultiplier);
+ });
+ lightFolder.addColor(controls, 'rayColor').listen().onChange(function (value) {
+ lightShaftPass.uniforms['rayColor'].value = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+
+ function changePreset(
+ backgroundColor,
+ ambientLightColor,
+ sunLightColor,
+ sunLightIntensity,
+ sunColor,
+ sunPositionY,
+ rayLength,
+ rayColor) {
+ controls.backgroundColor = backgroundColor;
+ controls.ambientLightColor = ambientLightColor;
+ controls.sunLightColor = sunLightColor;
+ controls.sunLightIntensity = sunLightIntensity;
+ controls.sunColor = sunColor;
+ controls.sunPositionY = sunPositionY;
+ controls.rayLength = rayLength;
+ controls.rayColor = rayColor;
+
+ renderer.setClearColor(controls.backgroundColor);
+ ambientLight.color = controls.ambientLightColor;
+ directionalLight.color = controls.sunLightColor;
+ directionalLight.intensity = controls.sunLightIntensity;
+ sunObject.material.color = controls.sunColor;
+ directionalLight.position.y = sunObject.position.y = controls.sunPositionY;
+ lightShaftPass.uniforms['stepCount'].value = Math.round(controls.rayLength * constants.rayLengthMultiplier);
+ lightShaftPass.uniforms['rayColor'].value = rayColor;
+ }
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ originalRT.setSize(window.innerWidth, window.innerHeight);
+ weightComposer.setSize(window.innerWidth, window.innerHeight);
+ lightShaftComposer.setSize(window.innerWidth, window.innHeight);
+ }
+}
+
+run();
\ No newline at end of file
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diff --git a/tutorial_data/pictures/chapter_results/chapter_4.png b/tutorial_data/pictures/chapter_results/chapter_4.png
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diff --git a/tutorial_data/pictures/chapter_results/chapter_5.png b/tutorial_data/pictures/chapter_results/chapter_5.png
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diff --git a/tutorial_data/pictures/chapter_results/chapter_6.png b/tutorial_data/pictures/chapter_results/chapter_6.png
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diff --git a/tutorial_data/pictures/chapter_results/chapter_7.png b/tutorial_data/pictures/chapter_results/chapter_7.png
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diff --git a/tutorial_data/pictures/emojis/emoji_1.png b/tutorial_data/pictures/emojis/emoji_1.png
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diff --git a/tutorial_data/pictures/emojis/emoji_2.png b/tutorial_data/pictures/emojis/emoji_2.png
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diff --git a/tutorial_data/pictures/emojis/emoji_3.png b/tutorial_data/pictures/emojis/emoji_3.png
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diff --git a/tutorial_data/pictures/emojis/emoji_4.png b/tutorial_data/pictures/emojis/emoji_4.png
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diff --git a/tutorial_data/pictures/references/light_shaft.png b/tutorial_data/pictures/references/light_shaft.png
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diff --git a/tutorial_data/pictures/references/projection_vs_uv.png b/tutorial_data/pictures/references/projection_vs_uv.png
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diff --git a/tutorial_data/scripts/script_2.js b/tutorial_data/scripts/script_2.js
new file mode 100644
index 0000000000000000000000000000000000000000..9b5133646e4fa146405c433d1fa8eab1c25619f4
--- /dev/null
+++ b/tutorial_data/scripts/script_2.js
@@ -0,0 +1,113 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ maxSunDistance: 600,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let ambientLight, directionalLight;
+ let sunObject;
+
+ createRenderer();
+ createCamera();
+ createLights();
+ createObjects();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+ }
+ function render() {
+ renderer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ camera.lookAt(constants.defaultCameraLookAt);
+ scene.add(camera);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ }
+}
+
+run();
diff --git a/tutorial_data/scripts/script_3.js b/tutorial_data/scripts/script_3.js
new file mode 100644
index 0000000000000000000000000000000000000000..07530b0b8cbc46a100bbbd873adf1efdc59ba361
--- /dev/null
+++ b/tutorial_data/scripts/script_3.js
@@ -0,0 +1,192 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ maxSunDistance: 600,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let ambientLight, directionalLight;
+ let sunObject;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+ }
+ function render() {
+ renderer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ }
+}
+
+run();
diff --git a/tutorial_data/scripts/script_4.js b/tutorial_data/scripts/script_4.js
new file mode 100644
index 0000000000000000000000000000000000000000..6710fd94c91be3aa38dc8984e16c61d2cd4632e0
--- /dev/null
+++ b/tutorial_data/scripts/script_4.js
@@ -0,0 +1,203 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ maxSunDistance: 600,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let originalRT;
+ let ambientLight, directionalLight;
+ let sunObject;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createRenderTargets();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+ }
+ function render() {
+ renderer.setRenderTarget(originalRT);
+ renderer.render(scene, camera);
+ renderer.setRenderTarget(null);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createRenderTargets() {
+ originalRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ originalRT.depthTexture = new THREE.DepthTexture();
+ originalRT.depthTexture.format = THREE.DepthFormat;
+ originalRT.depthTexture.type = THREE.UnsignedShortType;
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ originalRT.setSize(window.innerWidth, window.innerHeight);
+ }
+}
+
+run();
diff --git a/tutorial_data/scripts/script_5.js b/tutorial_data/scripts/script_5.js
new file mode 100644
index 0000000000000000000000000000000000000000..5caf3e67429e0288cfb00aa31a43e29864af2054
--- /dev/null
+++ b/tutorial_data/scripts/script_5.js
@@ -0,0 +1,247 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
+import { ShaderPass } from './jsm/postprocessing/ShaderPass.js';
+
+const WeightShader = {
+ uniforms: {
+ 'depthMap': { value: null }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D depthMap;
+
+ void main() {
+ float depth = 1.0 - texture2D(depthMap, texCoord).x;
+ float weight = (depth == 0.0) ? 0.3 : 0.0;
+
+ gl_FragColor = vec4(weight, weight, weight, 1.0);
+ }`
+};
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ maxSunDistance: 600,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let originalRT, weightRT;
+ let weightComposer;
+ let weightPass;
+ let ambientLight, directionalLight;
+ let sunObject;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createRenderTargets();
+ createPasses();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+ }
+ function render() {
+ renderer.setRenderTarget(originalRT);
+ renderer.render(scene, camera);
+ renderer.setRenderTarget(null);
+
+ weightComposer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createRenderTargets() {
+ originalRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ originalRT.depthTexture = new THREE.DepthTexture();
+ originalRT.depthTexture.format = THREE.DepthFormat;
+ originalRT.depthTexture.type = THREE.UnsignedShortType;
+
+ weightRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ }
+ function createPasses() {
+ weightComposer = new EffectComposer(renderer, weightRT);
+ weightComposer.renderToScreen = false;
+
+ weightPass = new ShaderPass(WeightShader);
+ weightPass.uniforms['depthMap'].value = originalRT.depthTexture;
+ weightComposer.addPass(weightPass);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ originalRT.setSize(window.innerWidth, window.innerHeight);
+ weightComposer.setSize(window.innerWidth, window.innerHeight);
+ }
+}
+
+run();
diff --git a/tutorial_data/scripts/script_6.js b/tutorial_data/scripts/script_6.js
new file mode 100644
index 0000000000000000000000000000000000000000..aa2720048cba1b7503a7cc5291a29aa83d159f7b
--- /dev/null
+++ b/tutorial_data/scripts/script_6.js
@@ -0,0 +1,338 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
+import { ShaderPass } from './jsm/postprocessing/ShaderPass.js';
+
+const WeightShader = {
+ uniforms: {
+ 'depthMap': { value: null }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D depthMap;
+
+ void main() {
+ float depth = 1.0 - texture2D(depthMap, texCoord).x;
+ float weight = (depth == 0.0) ? 0.3 : 0.0;
+
+ gl_FragColor = vec4(weight, weight, weight, 1.0);
+ }`
+};
+const LightShaftShader = {
+ uniforms: {
+ 'originalRTMap': { value: null },
+ 'weightRTMap': { value: null },
+ 'lightPosition': { value: new Vector3() },
+ 'rayColor': { value: new Color() },
+ 'stepCount': { value: 0 }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D originalRTMap;
+ uniform sampler2D weightRTMap;
+ uniform vec3 lightPosition;
+ uniform vec3 rayColor;
+ uniform int stepCount;
+
+ void main() {
+ float initDecay = 0.2;
+ float distDecay = 0.8;
+
+ vec4 albedo = texture2D(originalRTMap, texCoord);
+
+ vec2 dirToLight = lightPosition.xy - texCoord;
+ float lengthToLight = length(dirToLight);
+ dirToLight /= lengthToLight;
+
+ float deltaLength = min(0.005, lengthToLight * 1.0 / float(stepCount - 1));
+
+ vec2 rayOffset = vec2(0.0, 0.0);
+ vec2 rayDelta = dirToLight * deltaLength;
+ float rayIntensity = 0.0;
+ float stepDecay = distDecay * deltaLength;
+ float currentDecay = initDecay;
+ float currentIntensity = 0.0;
+
+ for (int i = 0; i < stepCount; ++i)
+ {
+ currentIntensity = texture2D(weightRTMap, texCoord + rayOffset).x;
+
+ rayOffset += rayDelta;
+ rayIntensity += currentIntensity * currentDecay;
+ currentDecay = clamp(currentDecay - stepDecay, 0.0, 1.0);
+ }
+
+ albedo.rgb = clamp(albedo.rgb + (rayColor * rayIntensity), 0.0, 1.0);
+
+ gl_FragColor = albedo;
+ }`
+};
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultRayLength: 1,
+ defaultRayColor: new Color(0x444444),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ rayLengthMultiplier: 24,
+ maxSunDistance: 600,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ rayLength: constants.defaultRayLength,
+ rayColor: constants.defaultRayColor,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let originalRT, weightRT;
+ let weightComposer, lightShaftComposer;
+ let weightPass, lightShaftPass;
+ let ambientLight, directionalLight;
+ let sunObject;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createRenderTargets();
+ createPasses();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+
+ const uvSunPosition = new Vector3();
+ uvSunPosition.copy(directionalLight.position);
+
+ uvSunPosition.project(camera);
+ uvSunPosition.x = (uvSunPosition.x + 1) * 0.5;
+ uvSunPosition.y = (uvSunPosition.y + 1) * 0.5;
+
+ lightShaftPass.uniforms['lightPosition'].value = uvSunPosition;
+ }
+ function render() {
+ renderer.setRenderTarget(originalRT);
+ renderer.render(scene, camera);
+ renderer.setRenderTarget(null);
+
+ weightComposer.render(scene, camera);
+ lightShaftComposer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createRenderTargets() {
+ originalRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ originalRT.depthTexture = new THREE.DepthTexture();
+ originalRT.depthTexture.format = THREE.DepthFormat;
+ originalRT.depthTexture.type = THREE.UnsignedShortType;
+
+ weightRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ }
+ function createPasses() {
+ weightComposer = new EffectComposer(renderer, weightRT);
+ weightComposer.renderToScreen = false;
+
+ weightPass = new ShaderPass(WeightShader);
+ weightPass.uniforms['depthMap'].value = originalRT.depthTexture;
+ weightComposer.addPass(weightPass);
+
+ lightShaftComposer = new EffectComposer(renderer);
+
+ lightShaftPass = new ShaderPass(LightShaftShader);
+ lightShaftPass.uniforms['originalRTMap'].value = originalRT.texture;
+ lightShaftPass.uniforms['weightRTMap'].value = weightRT.texture;
+ lightShaftPass.uniforms['lightPosition'].value = new Vector3();
+ lightShaftPass.uniforms['rayColor'].value = constants.defaultRayColor;
+ lightShaftPass.uniforms['stepCount'].value = Math.round(constants.defaultRayLength * constants.rayLengthMultiplier);
+ lightShaftComposer.addPass(lightShaftPass);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+ lightFolder.add(controls, 'rayLength', 0, 2).listen().onChange(function (value) {
+ lightShaftPass.uniforms['stepCount'].value = Math.round(value * constants.rayLengthMultiplier);
+ });
+ lightFolder.addColor(controls, 'rayColor').listen().onChange(function (value) {
+ lightShaftPass.uniforms['rayColor'].value = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ originalRT.setSize(window.innerWidth, window.innerHeight);
+ weightComposer.setSize(window.innerWidth, window.innerHeight);
+ lightShaftComposer.setSize(window.innerWidth, window.innHeight);
+ }
+}
+
+run();
diff --git a/tutorial_data/scripts/script_7.js b/tutorial_data/scripts/script_7.js
new file mode 100644
index 0000000000000000000000000000000000000000..8eabe47213a9ca1147db09dad018f13c7050842c
--- /dev/null
+++ b/tutorial_data/scripts/script_7.js
@@ -0,0 +1,523 @@
+import * as THREE from 'three';
+import { Vector3, Color } from 'three';
+import Stats from './jsm/libs/stats.module.js';
+import { OBJLoader } from './jsm/loaders/OBJLoader.js';
+import { GUI } from './jsm/libs/lil-gui.module.min.js';
+import { OrbitControls } from './jsm/controls/OrbitControls.js';
+import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
+import { ShaderPass } from './jsm/postprocessing/ShaderPass.js';
+
+const WeightShader = {
+ uniforms: {
+ 'depthMap': { value: null }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D depthMap;
+
+ void main() {
+ float depth = 1.0 - texture2D(depthMap, texCoord).x;
+ float weight = (depth == 0.0) ? 0.3 : 0.0;
+
+ gl_FragColor = vec4(weight, weight, weight, 1.0);
+ }`
+};
+const LightShaftShader = {
+ uniforms: {
+ 'originalRTMap': { value: null },
+ 'weightRTMap': { value: null },
+ 'lightPosition': { value: new Vector3() },
+ 'rayColor': { value: new Color() },
+ 'stepCount': { value: 0 }
+ },
+
+ vertexShader: `
+ varying vec2 texCoord;
+
+ void main() {
+ texCoord = uv;
+ gl_Position = vec4(position, 1.0);
+ }`,
+
+ fragmentShader: `
+ varying vec2 texCoord;
+
+ uniform sampler2D originalRTMap;
+ uniform sampler2D weightRTMap;
+ uniform vec3 lightPosition;
+ uniform vec3 rayColor;
+ uniform int stepCount;
+
+ void main() {
+ float initDecay = 0.2;
+ float distDecay = 0.8;
+
+ vec4 albedo = texture2D(originalRTMap, texCoord);
+
+ vec2 dirToLight = lightPosition.xy - texCoord;
+ float lengthToLight = length(dirToLight);
+ dirToLight /= lengthToLight;
+
+ float deltaLength = min(0.005, lengthToLight * 1.0 / float(stepCount - 1));
+
+ vec2 rayOffset = vec2(0.0, 0.0);
+ vec2 rayDelta = dirToLight * deltaLength;
+ float rayIntensity = 0.0;
+ float stepDecay = distDecay * deltaLength;
+ float currentDecay = initDecay;
+ float currentIntensity = 0.0;
+
+ for (int i = 0; i < stepCount; ++i)
+ {
+ currentIntensity = texture2D(weightRTMap, texCoord + rayOffset).x;
+
+ rayOffset += rayDelta;
+ rayIntensity += currentIntensity * currentDecay;
+ currentDecay = clamp(currentDecay - stepDecay, 0.0, 1.0);
+ }
+
+ albedo.rgb = clamp(albedo.rgb + (rayColor * rayIntensity), 0.0, 1.0);
+
+ gl_FragColor = albedo;
+ }`
+};
+
+const constants = {
+ defaultCameraPosition: new Vector3(0, 20, 200),
+ defaultCameraLookAt: new Vector3(0, 70, 0),
+ orbitControlsMinDistance: 50,
+ orbitControlsMaxDistance: 500,
+ defaultFieldOfView: 60,
+ defaultBackgroundColor: new Color(0xcccccc),
+ defaultAmbientLightColor: new Color(0x555555),
+ defaultDirectionalLightColor: new Color(0x555555),
+ defaultSunColor: new Color(0xffffff),
+ defaultRayLength: 1,
+ defaultRayColor: new Color(0x444444),
+ defaultSunObjectGeometry: new THREE.SphereGeometry(1, 24, 12),
+ defaultSunObjectMaterial: new THREE.MeshBasicMaterial({ color: 0xffffff }),
+ rayLengthMultiplier: 24,
+ maxSunDistance: 600,
+ autoSunMoveSpeed: 0.5,
+ autoCameraMoveSpeed: 0.3,
+ treeCount: 10,
+ treeOffset: 50
+
+};
+const controls = {
+ backgroundColor: constants.defaultBackgroundColor,
+ presets: 'default',
+ sunObject: 'Sphere',
+ autoSunMove: false,
+ autoCameraMove: false,
+ ambientLightColor: constants.defaultAmbientLightColor,
+ sunLightColor: constants.defaultDirectionalLightColor,
+ sunLightIntensity: 1,
+ sunColor: constants.defaultSunColor,
+ sunPositionX: 0,
+ sunPositionY: constants.maxSunDistance,
+ sunPositionZ: -constants.maxSunDistance,
+ rayLength: constants.defaultRayLength,
+ rayColor: constants.defaultRayColor,
+ freeMove: false,
+ fieldOfView: 60
+
+};
+
+function run() {
+ const scene = new THREE.Scene();
+ const clock = new THREE.Clock();
+ const stats = new Stats();
+ const container = document.getElementById('container');
+ container.appendChild(stats.dom);
+
+ let renderer, camera;
+ let orbitControls;
+ let originalRT, weightRT;
+ let weightComposer, lightShaftComposer;
+ let weightPass, lightShaftPass;
+ let ambientLight, directionalLight;
+ let sunObject;
+ let sunTime = 0;
+ let cameraTime = 0;
+ let fantasyTime = 0;
+
+ createRenderer();
+ createCamera();
+ createOrbitControls();
+ createLights();
+ createRenderTargets();
+ createPasses();
+ createObjects();
+ createGUI();
+
+ animate();
+
+ window.addEventListener('resize', onWindowResize);
+
+ function animate() {
+ requestAnimationFrame(animate);
+
+ update();
+ render();
+
+ function update() {
+ stats.update();
+
+ const deltaTime = clock.getDelta();
+
+ if (controls.autoSunMove) {
+ sunObject.position.x = Math.sin(sunTime) * 500;
+ directionalLight.position.x = sunObject.position.x;
+ controls.sunPositionX = sunObject.position.x;
+
+ sunTime += deltaTime * constants.autoSunMoveSpeed;
+ sunTime = (sunTime >= Math.PI * 2) ? sunTime - Math.PI * 2 : sunTime;
+ }
+ if (controls.autoCameraMove) {
+ camera.position.x = Math.sin(cameraTime) * 300;
+
+ cameraTime += deltaTime * constants.autoCameraMoveSpeed;
+ cameraTime = (cameraTime >= Math.PI * 2) ? cameraTime - Math.PI * 2 : cameraTime;
+ }
+ if (controls.presets == 'fantasy') {
+ const color = new Color(0x874089);
+ const wave = (Math.cos(fantasyTime) + 1) * 0.5;
+
+ color.r = THREE.MathUtils.clamp(color.r * wave, 0, 1);
+ color.g = THREE.MathUtils.clamp(color.g * wave, 0, 1);
+ color.b = THREE.MathUtils.clamp(color.b * wave, 0, 1);
+
+ controls.backgroundColor = color;
+ controls.sunColor = color;
+
+ renderer.setClearColor(color, 1);
+ sunObject.material.color = color;
+
+ fantasyTime += deltaTime;
+ fantasyTime = (fantasyTime >= Math.PI * 2) ? fantasyTime - Math.PI * 2 : fantasyTime;
+ }
+
+ const uvSunPosition = new Vector3();
+ uvSunPosition.copy(directionalLight.position);
+
+ uvSunPosition.project(camera);
+ uvSunPosition.x = (uvSunPosition.x + 1) * 0.5;
+ uvSunPosition.y = (uvSunPosition.y + 1) * 0.5;
+
+ lightShaftPass.uniforms['lightPosition'].value = uvSunPosition;
+ }
+ function render() {
+ renderer.setRenderTarget(originalRT);
+ renderer.render(scene, camera);
+ renderer.setRenderTarget(null);
+
+ weightComposer.render(scene, camera);
+ lightShaftComposer.render(scene, camera);
+ }
+ }
+
+ function createRenderer() {
+ renderer = new THREE.WebGLRenderer();
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ renderer.setClearColor(constants.defaultBackgroundColor, 1);
+
+ container.appendChild(renderer.domElement);
+ }
+ function createCamera() {
+ camera = new THREE.PerspectiveCamera(constants.defaultFieldOfView, window.innerWidth / window.innerHeight, 1, 1000);
+ camera.position.copy(constants.defaultCameraPosition);
+ scene.add(camera);
+ }
+ function createOrbitControls() {
+ orbitControls = new OrbitControls(camera, renderer.domElement);
+ orbitControls.minDistance = constants.orbitControlsMinDistance;
+ orbitControls.maxDistance = constants.orbitControlsMaxDistance;
+ orbitControls.enabled = false;
+
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+ function createLights() {
+ ambientLight = new THREE.AmbientLight(constants.defaultAmbientLightColor);
+ scene.add(ambientLight);
+
+ directionalLight = new THREE.DirectionalLight(constants.defaultDirectionalLightColor);
+ directionalLight.position.set(0, constants.maxSunDistance, -constants.maxSunDistance);
+ scene.add(directionalLight);
+ }
+ function createRenderTargets() {
+ originalRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ originalRT.depthTexture = new THREE.DepthTexture();
+ originalRT.depthTexture.format = THREE.DepthFormat;
+ originalRT.depthTexture.type = THREE.UnsignedShortType;
+
+ weightRT = new THREE.WebGLRenderTarget(window.innerWidth, window.innerHeight);
+ }
+ function createPasses() {
+ weightComposer = new EffectComposer(renderer, weightRT);
+ weightComposer.renderToScreen = false;
+
+ weightPass = new ShaderPass(WeightShader);
+ weightPass.uniforms['depthMap'].value = originalRT.depthTexture;
+ weightComposer.addPass(weightPass);
+
+ lightShaftComposer = new EffectComposer(renderer);
+
+ lightShaftPass = new ShaderPass(LightShaftShader);
+ lightShaftPass.uniforms['originalRTMap'].value = originalRT.texture;
+ lightShaftPass.uniforms['weightRTMap'].value = weightRT.texture;
+ lightShaftPass.uniforms['lightPosition'].value = new Vector3();
+ lightShaftPass.uniforms['rayColor'].value = constants.defaultRayColor;
+ lightShaftPass.uniforms['stepCount'].value = Math.round(constants.defaultRayLength * constants.rayLengthMultiplier);
+ lightShaftComposer.addPass(lightShaftPass);
+ }
+ function createObjects() {
+ const loader = new OBJLoader();
+ const whiteMaterial = new THREE.MeshLambertMaterial({ color: 0xffffff });
+
+ const bottomPlaneGeometry = new THREE.PlaneGeometry(1000, 1000);
+ const bottomPlaneMesh = new THREE.Mesh(bottomPlaneGeometry, whiteMaterial);
+ bottomPlaneMesh.rotation.x = THREE.MathUtils.degToRad(-90);
+ scene.add(bottomPlaneMesh);
+
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.copy(directionalLight.position);
+ sunObject.scale.multiplyScalar(40);
+ scene.add(sunObject);
+
+ for (let i = 0; i < constants.treeCount; ++i) {
+ loader.load('models/tree.obj', function (tree) {
+ tree.material = whiteMaterial;
+ tree.position.set(
+ (i * constants.treeOffset) - (constants.treeOffset * (constants.treeCount / 2) - (constants.treeOffset / 2)),
+ 0,
+ (Math.random() - 0.5) * 2 * 100);
+ tree.rotation.y = Math.random() * Math.PI * 2;
+ tree.scale.multiplyScalar(100);
+ scene.add(tree);
+ });
+ }
+ }
+ function createGUI() {
+ const gui = new GUI();
+
+ const generalFolder = gui.addFolder('General');
+ generalFolder.addColor(controls, 'backgroundColor').listen().onChange(function (value) {
+ renderer.setClearColor(value, 1);
+ });
+ generalFolder.add(controls, 'presets', ['default', 'afternoon', 'sunset', 'night', 'eclipse', 'fantasy']).listen().onChange(function (value) {
+ switch (value) {
+ case 'default':
+ changePreset(
+ constants.defaultBackgroundColor,
+ constants.defaultAmbientLightColor,
+ constants.defaultDirectionalLightColor, 1,
+ constants.defaultSunColor,
+ constants.maxSunDistance,
+ 1, constants.defaultRayColor);
+ break;
+ case 'afternoon':
+ changePreset(
+ new Color(0x40829c),
+ new Color(0x51411f),
+ new Color(0x948161), 1,
+ new Color(0xe1f8fe),
+ constants.maxSunDistance,
+ 1.5, new Color(0x3e6a8e));
+ break;
+ case 'sunset':
+ changePreset(
+ new Color(0xc39737),
+ new Color(0x3e3418),
+ new Color(0x3e3418), 1,
+ new Color(0xff9242),
+ 50,
+ 2, new Color(0x873636));
+ break;
+ case 'night':
+ changePreset(
+ new Color(0x252837),
+ new Color(0x201f2e),
+ new Color(0x2c2d44), 0.4,
+ new Color(0x8282c7),
+ constants.maxSunDistance,
+ 0.8, new Color(0x111122));
+ break;
+ case 'eclipse':
+ changePreset(
+ new Color(0x140505),
+ new Color(0x773131),
+ new Color(0x202010), 1,
+ new Color(0x222222),
+ constants.maxSunDistance,
+ 2, new Color(0x460c0c));
+ break;
+ case 'fantasy':
+ changePreset(
+ new Color(0x874089),
+ new Color(0x40387a),
+ new Color(0x9a4747), 1,
+ new Color(0x874089),
+ constants.maxSunDistance,
+ 2, new Color(0x557799));
+ break;
+ }
+ });
+ generalFolder.add(controls, 'sunObject', ['sphere', 'lisaSu', 'cat', 'none']).listen().onChange(function (value) {
+ const textureLoader = new THREE.TextureLoader();
+ let planeGeometry;
+ let planeMaterial;
+ let planeTexture;
+
+ scene.remove(sunObject);
+
+ switch (value) {
+ case 'sphere':
+ sunObject = new THREE.Mesh(
+ constants.defaultSunObjectGeometry,
+ constants.defaultSunObjectMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ sunObject.scale.multiplyScalar(40);
+
+ scene.add(sunObject);
+ break;
+ case 'lisaSu':
+ planeTexture = textureLoader.load('https://miro.medium.com/proxy/0*pKN_ICbi7lzXWgcN.png');
+ planeGeometry = new THREE.PlaneGeometry(175, 100);
+ planeMaterial = new THREE.MeshBasicMaterial({
+ map: planeTexture
+ });
+
+ sunObject = new THREE.Mesh(planeGeometry, planeMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ scene.add(sunObject);
+ break;
+ case 'cat':
+ planeTexture = textureLoader.load('https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Kittyply_edit1.jpg/220px-Kittyply_edit1.jpg');
+ planeGeometry = new THREE.PlaneGeometry(173, 115);
+ planeMaterial = new THREE.MeshBasicMaterial({
+ map: planeTexture
+ });
+
+ sunObject = new THREE.Mesh(planeGeometry, planeMaterial);
+ sunObject.position.set(
+ controls.sunPositionX,
+ controls.sunPositionY,
+ controls.sunPositionZ);
+ scene.add(sunObject);
+ break;
+ }
+
+ sunObject.material.color = controls.sunColor;
+ });
+ generalFolder.add(controls, 'autoSunMove').listen();
+ generalFolder.add(controls, 'autoCameraMove').listen();
+
+ const lightFolder = gui.addFolder('Light');
+ lightFolder.addColor(controls, 'ambientLightColor').listen().onChange(function (value) {
+ ambientLight.color = value;
+ });
+ lightFolder.addColor(controls, 'sunLightColor').listen().onChange(function (value) {
+ directionalLight.color = value;
+ });
+ lightFolder.add(controls, 'sunLightIntensity', 0, 1).listen().onChange(function (value) {
+ directionalLight.intensity = value;
+ });
+ lightFolder.addColor(controls, 'sunColor').listen().onChange(function (value) {
+ sunObject.material.color = value;
+ })
+ lightFolder.add(controls, 'sunPositionX', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.x = value;
+ sunObject.position.x = value;
+ });
+ lightFolder.add(controls, 'sunPositionY', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.y = value;
+ sunObject.position.y = value;
+ });
+ lightFolder.add(controls, 'sunPositionZ', -constants.maxSunDistance, constants.maxSunDistance).listen().onChange(function (value) {
+ directionalLight.position.z = value;
+ sunObject.position.z = value;
+ });
+ lightFolder.add(controls, 'rayLength', 0, 2).listen().onChange(function (value) {
+ lightShaftPass.uniforms['stepCount'].value = Math.round(value * constants.rayLengthMultiplier);
+ });
+ lightFolder.addColor(controls, 'rayColor').listen().onChange(function (value) {
+ lightShaftPass.uniforms['rayColor'].value = value;
+ });
+
+ const cameraFolder = gui.addFolder('Camera');
+ cameraFolder.add(controls, 'freeMove').listen().onChange(function (value) {
+ camera.position.copy(constants.defaultCameraPosition);
+
+ if (value) {
+ camera.lookAt(0, 0, 0);
+ } else {
+ camera.lookAt(constants.defaultCameraLookAt);
+ }
+
+ orbitControls.enabled = value;
+ });
+ cameraFolder.add(controls, 'fieldOfView', 40, 80).listen().onChange(function (value) {
+ camera.fov = value;
+ camera.updateProjectionMatrix();
+ });
+
+ function changePreset(
+ backgroundColor,
+ ambientLightColor,
+ sunLightColor,
+ sunLightIntensity,
+ sunColor,
+ sunPositionY,
+ rayLength,
+ rayColor) {
+ controls.backgroundColor = backgroundColor;
+ controls.ambientLightColor = ambientLightColor;
+ controls.sunLightColor = sunLightColor;
+ controls.sunLightIntensity = sunLightIntensity;
+ controls.sunColor = sunColor;
+ controls.sunPositionY = sunPositionY;
+ controls.rayLength = rayLength;
+ controls.rayColor = rayColor;
+
+ renderer.setClearColor(controls.backgroundColor);
+ ambientLight.color = controls.ambientLightColor;
+ directionalLight.color = controls.sunLightColor;
+ directionalLight.intensity = controls.sunLightIntensity;
+ sunObject.material.color = controls.sunColor;
+ directionalLight.position.y = sunObject.position.y = controls.sunPositionY;
+ lightShaftPass.uniforms['stepCount'].value = Math.round(controls.rayLength * constants.rayLengthMultiplier);
+ lightShaftPass.uniforms['rayColor'].value = rayColor;
+ }
+ }
+
+ function onWindowResize() {
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize(window.innerWidth, window.innerHeight);
+ originalRT.setSize(window.innerWidth, window.innerHeight);
+ weightComposer.setSize(window.innerWidth, window.innerHeight);
+ lightShaftComposer.setSize(window.innerWidth, window.innHeight);
+ }
+}
+
+run();