添加风机

public/models/README.md

@@ -0,0 +1,18 @@
+将你选中的海上风机资产导出为 GLB 文件，并放到下面这个路径：
+
+`public/models/offshore-wind-turbine.glb`
+
+当前代码会优先加载这个文件：
+
+- 存在该文件：使用真实 GLB 风机资产
+- 文件不存在或加载失败：自动回退到程序化风机占位模型
+
+建议优先选择包含完整塔架、机舱、叶片的海上风机模型。
+
+当前选定来源：
+
+- Sketchfab: Generic Wind Turbine (V136 125.5h 145d)
+- 链接: https://sketchfab.com/3d-models/generic-wind-turbine-v136-1255h-145d-90ad27be20c541d1a0e4818d4e501679
+- 发布时间: 2020-06-11
+- 许可: CC Attribution
+- 规模: 约 2.1k triangles

src/OceanScene.js

@@ -10,6 +10,7 @@ import Stats from 'three/addons/libs/stats.module.js';
 import { TerrainGenerator } from './TerrainGenerator.js';
 import { VegetationSystem } from './VegetationSystem.js';
 import { DEFAULT_SCENE_PARAMS } from './weatherPresets.js';
+import { OffshoreWindTurbineAsset } from './objects/OffshoreWindTurbineAsset.js';
 
 const RAIN_AUDIO_URL = '/audio/rain-calming.mp3';
 const THUNDER_AUDIO_URL = '/audio/thunder-distant.mp3';
@@ -25,8 +26,10 @@ export class OceanScene {
         this.sky = null;
         this.starField = null;
         this.moonSprite = null;
+        this.moonGlowSprite = null;
         this.galaxyBand = null;
         this.sun = new THREE.Vector3();
+        this.initialSun = new THREE.Vector3();
         this.terrain = null;
         this.vegetation = null;
         this.vegetationSystem = null;
@@ -50,6 +53,7 @@ export class OceanScene {
         this.fogLayers = [];
         this.horizonFog = null;
         this.skyHazeBand = null;
+        this.windTurbine = null;
         this.rainAudioPool = [];
         this.rainAudioActiveIndex = 0;
         this.rainAudioIsPlaying = false;
@@ -85,6 +89,7 @@ export class OceanScene {
         this.initFog();
         await this.initWater();
         await this.initTerrain();
+        await this.initWindTurbine();
         await this.initVegetation();
         this.initSunPosition();
         this.initEventListeners();
@@ -645,6 +650,20 @@ export class OceanScene {
         this.moonSprite.scale.setScalar(490);
         this.scene.add(this.moonSprite);
 
+        const moonGlowTexture = this.createMoonGlowTexture();
+        const moonGlowMaterial = new THREE.SpriteMaterial({
+            map: moonGlowTexture,
+            color: 0xc6dbff,
+            transparent: true,
+            opacity: 0,
+            depthWrite: false,
+            depthTest: true,
+            blending: THREE.AdditiveBlending
+        });
+        this.moonGlowSprite = new THREE.Sprite(moonGlowMaterial);
+        this.moonGlowSprite.scale.setScalar(980);
+        this.scene.add(this.moonGlowSprite);
+
         const galaxyTexture = this.createGalaxyTexture();
         const galaxyMaterial = new THREE.SpriteMaterial({
             map: galaxyTexture,
@@ -704,6 +723,28 @@ export class OceanScene {
         return texture;
     }
 
+    createMoonGlowTexture() {
+        const canvas = document.createElement('canvas');
+        canvas.width = 512;
+        canvas.height = 512;
+        const ctx = canvas.getContext('2d');
+        ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+        const glow = ctx.createRadialGradient(256, 256, 0, 256, 256, 256);
+        glow.addColorStop(0, 'rgba(255,255,255,0.62)');
+        glow.addColorStop(0.12, 'rgba(236,242,255,0.46)');
+        glow.addColorStop(0.28, 'rgba(198,216,255,0.26)');
+        glow.addColorStop(0.52, 'rgba(148,184,255,0.11)');
+        glow.addColorStop(0.78, 'rgba(120,160,255,0.05)');
+        glow.addColorStop(1, 'rgba(120,160,255,0)');
+        ctx.fillStyle = glow;
+        ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+        const texture = new THREE.CanvasTexture(canvas);
+        texture.colorSpace = THREE.SRGBColorSpace;
+        return texture;
+    }
+
     createGalaxyTexture() {
         const canvas = document.createElement('canvas');
         canvas.width = 1024;
@@ -1259,15 +1300,36 @@ export class OceanScene {
         const baseWaterOnBeforeRender = this.water.onBeforeRender.bind(this.water);
         this.water.onBeforeRender = (...args) => {
             const starsWereVisible = this.starField?.visible ?? false;
+            const moonWasVisible = this.moonSprite?.visible ?? false;
+            const moonGlowWasVisible = this.moonGlowSprite?.visible ?? false;
+            const galaxyWasVisible = this.galaxyBand?.visible ?? false;
             if (this.starField) {
                 this.starField.visible = false;
             }
+            if (this.moonSprite) {
+                this.moonSprite.visible = false;
+            }
+            if (this.moonGlowSprite) {
+                this.moonGlowSprite.visible = false;
+            }
+            if (this.galaxyBand) {
+                this.galaxyBand.visible = false;
+            }
             try {
                 baseWaterOnBeforeRender(...args);
             } finally {
                 if (this.starField) {
                     this.starField.visible = starsWereVisible;
                 }
+                if (this.moonSprite) {
+                    this.moonSprite.visible = moonWasVisible;
+                }
+                if (this.moonGlowSprite) {
+                    this.moonGlowSprite.visible = moonGlowWasVisible;
+                }
+                if (this.galaxyBand) {
+                    this.galaxyBand.visible = galaxyWasVisible;
+                }
             }
         };
 
@@ -1300,6 +1362,18 @@ export class OceanScene {
         this.terrainGenerator = terrainGen;
     }
 
+    async initWindTurbine() {
+        this.windTurbine = new OffshoreWindTurbineAsset({
+            position: new THREE.Vector3(280, 0, -2350),
+            yaw: 0,
+            scale: 0.68,
+            rotorSpeed: 0.24
+        });
+        await this.windTurbine.load();
+        this.windTurbine.addToScene(this.scene);
+        this.windTurbine.faceDirection(this.sun);
+    }
+    
     async initVegetation() {
         const vegSystem = new VegetationSystem(this.terrainGenerator, {
             grassCount: 0, // 随机草簇数量，设为 0 时只使用 grassAreas
@@ -1344,6 +1418,7 @@ export class OceanScene {
     }
     
     initSunPosition() {
+        this.initialSun.copy(this.sun);
         this.updateSun();
     }
     
@@ -1352,6 +1427,9 @@ export class OceanScene {
         const theta = THREE.MathUtils.degToRad(this.params.azimuth);
         
         this.sun.setFromSphericalCoords(1, phi, theta);
+        if (this.initialSun.lengthSq() === 0) {
+            this.initialSun.copy(this.sun);
+        }
         
         this.sky.material.uniforms['sunPosition'].value.copy(this.sun);
         this.water.material.uniforms['sunDirection'].value.copy(this.sun).normalize();
@@ -1965,7 +2043,7 @@ export class OceanScene {
         this.starField.material.uniforms.intensity.value = opacity;
 
         if (this.moonSprite) {
-            const moonAngle = THREE.MathUtils.degToRad(this.params.azimuth - 42);
+            const moonAngle = Math.atan2(this.initialSun.z, this.initialSun.x);
             const moonDistance = 3200;
             this.moonSprite.position.set(
                 Math.cos(moonAngle) * moonDistance,
@@ -1977,6 +2055,13 @@ export class OceanScene {
             this.moonSprite.material.opacity = THREE.MathUtils.lerp(0.0, 2.4, moonGlow);
             const moonScale = THREE.MathUtils.lerp(410, 730, moonGlow);
             this.moonSprite.scale.setScalar(moonScale);
+
+            if (this.moonGlowSprite) {
+                this.moonGlowSprite.position.copy(this.moonSprite.position);
+                this.moonGlowSprite.visible = this.moonSprite.visible;
+                this.moonGlowSprite.material.opacity = moonGlow * 1.18;
+                this.moonGlowSprite.scale.setScalar(THREE.MathUtils.lerp(980, 1680, moonGlow));
+            }
         }
 
         if (this.galaxyBand) {
@@ -2070,7 +2155,8 @@ export class OceanScene {
         requestAnimationFrame(() => this.animate());
         this.stats?.begin();
         
-        const time = this.clock.getElapsedTime();
+        const delta = this.clock.getDelta();
+        const time = this.clock.elapsedTime;
         this.updateLightning(time);
         this.updateThunder(time);
         this.updateRainAudioLoop();
@@ -2107,6 +2193,11 @@ export class OceanScene {
             this.vegetationSystem.update(time);
         }
 
+        if (this.windTurbine) {
+            this.windTurbine.faceDirection(this.sun);
+            this.windTurbine.update(time, delta);
+        }
+
         if (this.lightningFlash > 0.001) {
             this.updateClouds();
             this.updateFog();

src/main.js

@@ -6,7 +6,6 @@ async function main() {
     const container = document.getElementById('container');
     
     const oceanScene = new OceanScene(container);
-    
     try {
         await oceanScene.init();
         

src/objects/OffshoreWindTurbineAsset.js

@@ -0,0 +1,133 @@
+import * as THREE from 'three';
+import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
+import { WindTurbine } from './WindTurbine.js';
+
+const DEFAULT_MODEL_URL = '/models/offshore-wind-turbine.glb';
+
+export class OffshoreWindTurbineAsset {
+    constructor({
+        modelUrl = DEFAULT_MODEL_URL,
+        position = new THREE.Vector3(360, 0, -260),
+        yaw = -Math.PI * 0.18,
+        scale = 1,
+        rotorSpeed = 0.34
+    } = {}) {
+        this.modelUrl = modelUrl;
+        this.position = position.clone();
+        this.yaw = yaw;
+        this.scale = scale;
+        this.rotorSpeed = rotorSpeed;
+
+        this.group = new THREE.Group();
+        this.group.position.copy(this.position);
+        this.group.rotation.y = this.yaw;
+        this.group.scale.setScalar(this.scale);
+
+        this.rotors = [];
+        this.mixer = null;
+        this.model = null;
+        this.usingFallback = false;
+    }
+
+    async load() {
+        try {
+            const gltf = await this.loadGltf(this.modelUrl);
+            this.attachModel(gltf);
+        } catch (error) {
+            console.warn(`风机资产加载失败，回退到程序化风机: ${this.modelUrl}`, error);
+            this.attachFallback();
+        }
+
+        return this;
+    }
+
+    loadGltf(url) {
+        const loader = new GLTFLoader();
+        return new Promise((resolve, reject) => {
+            loader.load(url, resolve, undefined, reject);
+        });
+    }
+
+    attachModel(gltf) {
+        const model = gltf.scene;
+        this.fitModelToTargetHeight(model);
+        this.prepareModel(model);
+        this.alignModelToWaterline(model);
+        this.group.add(model);
+        this.model = model;
+
+        if (gltf.animations?.length) {
+            this.mixer = new THREE.AnimationMixer(model);
+            gltf.animations.forEach((clip) => {
+                this.mixer.clipAction(clip).play();
+            });
+        }
+    }
+
+    attachFallback() {
+        const fallback = new WindTurbine({
+            position: new THREE.Vector3(0, 0, 0),
+            yaw: 0,
+            rotorSpeed: this.rotorSpeed
+        });
+        this.group.add(fallback.group);
+        this.rotors = fallback.rotors;
+        this.usingFallback = true;
+    }
+
+    prepareModel(model) {
+        model.traverse((child) => {
+            if (!child.isMesh) return;
+            child.castShadow = true;
+            child.receiveShadow = true;
+
+            const materials = Array.isArray(child.material) ? child.material : [child.material];
+            materials.forEach((material) => {
+                if (!material) return;
+                if ('color' in material) {
+                    material.color.set(0xe8edf3);
+                }
+                if ('metalness' in material && material.metalness < 0.05) {
+                    material.metalness = 0.18;
+                }
+                if ('roughness' in material && material.roughness > 0.92) {
+                    material.roughness = 0.82;
+                }
+            });
+        });
+
+    }
+
+    fitModelToTargetHeight(model, targetHeight = 340) {
+        const box = new THREE.Box3().setFromObject(model);
+        const size = box.getSize(new THREE.Vector3());
+        if (size.y <= 0.0001) return;
+
+        const scaleFactor = targetHeight / size.y;
+        model.scale.multiplyScalar(scaleFactor);
+    }
+
+    alignModelToWaterline(model) {
+        const box = new THREE.Box3().setFromObject(model);
+        model.position.y -= box.min.y;
+    }
+
+    addToScene(scene) {
+        scene.add(this.group);
+    }
+
+    faceDirection(direction) {
+        const flatDirection = new THREE.Vector3(direction.x, 0, direction.z);
+        if (flatDirection.lengthSq() < 0.0001) return;
+
+        flatDirection.normalize();
+        const yaw = Math.atan2(flatDirection.x, flatDirection.z);
+        this.group.rotation.y = yaw;
+    }
+
+    update(time, delta = 1 / 60) {
+        if (this.mixer) {
+            this.mixer.update(delta);
+        }
+    }
+}

src/objects/WindTurbine.js

@@ -0,0 +1,161 @@
+import * as THREE from 'three';
+
+export class WindTurbine {
+    constructor({
+        position = new THREE.Vector3(360, 0, -260),
+        yaw = -Math.PI * 0.18,
+        rotorSpeed = 0.34
+    } = {}) {
+        this.group = new THREE.Group();
+        this.group.position.copy(position);
+        this.group.rotation.y = yaw;
+
+        this.rotors = [];
+        this.rotorSpeed = rotorSpeed;
+
+        this.init();
+    }
+
+    init() {
+        const towerMaterial = new THREE.MeshStandardMaterial({
+            color: 0xe7edf2,
+            metalness: 0.28,
+            roughness: 0.55
+        });
+        const accentMaterial = new THREE.MeshStandardMaterial({
+            color: 0xc4d0da,
+            metalness: 0.35,
+            roughness: 0.48
+        });
+        const bladeMaterial = new THREE.MeshStandardMaterial({
+            color: 0xf7fafc,
+            metalness: 0.16,
+            roughness: 0.62
+        });
+        const foundationMaterial = new THREE.MeshStandardMaterial({
+            color: 0x71808f,
+            metalness: 0.24,
+            roughness: 0.82
+        });
+        const platformMaterial = new THREE.MeshStandardMaterial({
+            color: 0xffffff,
+            transparent: true,
+            opacity: 0.16,
+            roughness: 0.95,
+            metalness: 0
+        });
+        const ringMaterial = new THREE.MeshStandardMaterial({
+            color: 0x91a1ae,
+            metalness: 0.38,
+            roughness: 0.42
+        });
+
+        const foundation = new THREE.Mesh(
+            new THREE.CylinderGeometry(8.2, 10.6, 36, 24),
+            foundationMaterial
+        );
+        foundation.position.y = -17.8;
+        this.group.add(foundation);
+
+        const transition = new THREE.Mesh(
+            new THREE.CylinderGeometry(5.2, 6.8, 9, 24),
+            accentMaterial
+        );
+        transition.position.y = 4.2;
+        this.group.add(transition);
+
+        const tower = new THREE.Mesh(
+            new THREE.CylinderGeometry(2.9, 4.8, 92, 28),
+            towerMaterial
+        );
+        tower.position.y = 54;
+        this.group.add(tower);
+
+        const nacelle = new THREE.Mesh(
+            new THREE.CapsuleGeometry(3.2, 11, 8, 16),
+            towerMaterial
+        );
+        nacelle.rotation.z = Math.PI / 2;
+        nacelle.position.set(0, 102, 0);
+        this.group.add(nacelle);
+
+        const tailFin = new THREE.Mesh(
+            new THREE.BoxGeometry(1.1, 5.5, 2.8),
+            accentMaterial
+        );
+        tailFin.position.set(-8.5, 102.5, 0);
+        this.group.add(tailFin);
+
+        const rotor = this.createRotor(bladeMaterial, accentMaterial, ringMaterial);
+        rotor.position.set(6.8, 102, 0);
+        rotor.userData.rotationSpeed = this.rotorSpeed;
+        this.group.add(rotor);
+        this.rotors.push(rotor);
+
+        const platform = new THREE.Mesh(
+            new THREE.CylinderGeometry(7.6, 9.2, 0.5, 32),
+            platformMaterial
+        );
+        platform.position.y = 0.12;
+        this.group.add(platform);
+
+        this.group.traverse((child) => {
+            if (!child.isMesh) return;
+            child.castShadow = true;
+            child.receiveShadow = true;
+        });
+    }
+
+    createRotor(bladeMaterial, hubMaterial, ringMaterial) {
+        const rotor = new THREE.Group();
+
+        const hub = new THREE.Mesh(
+            new THREE.SphereGeometry(2.2, 20, 20),
+            hubMaterial
+        );
+        rotor.add(hub);
+
+        const bladeShape = new THREE.Shape();
+        bladeShape.moveTo(-0.3, 0);
+        bladeShape.quadraticCurveTo(1.2, 2.6, 0.7, 22);
+        bladeShape.quadraticCurveTo(0.2, 31.5, -0.55, 38.5);
+        bladeShape.quadraticCurveTo(-1.0, 31, -0.9, 21);
+        bladeShape.quadraticCurveTo(-0.82, 6.8, -0.3, 0);
+
+        const bladeGeometry = new THREE.ExtrudeGeometry(bladeShape, {
+            depth: 0.22,
+            bevelEnabled: false,
+            curveSegments: 20,
+            steps: 1
+        });
+        bladeGeometry.translate(0, -2.2, -0.11);
+
+        for (let i = 0; i < 3; i++) {
+            const blade = new THREE.Mesh(bladeGeometry, bladeMaterial);
+            blade.rotation.x = Math.PI / 2;
+            blade.rotation.z = (i / 3) * Math.PI * 2;
+            blade.position.x = 0.55;
+            rotor.add(blade);
+        }
+
+        const ring = new THREE.Mesh(
+            new THREE.TorusGeometry(2.65, 0.16, 10, 40),
+            ringMaterial
+        );
+        ring.rotation.y = Math.PI / 2;
+        rotor.add(ring);
+
+        return rotor;
+    }
+
+    addToScene(scene) {
+        scene.add(this.group);
+    }
+
+    update(time, delta = 1 / 60) {
+        this.rotors.forEach((rotor, index) => {
+            const gust = 1.0 + Math.sin(time * 0.28 + index * 1.7) * 0.08;
+            rotor.rotation.x += rotor.userData.rotationSpeed * gust * delta;
+        });
+    }
+}