threejs — 16 鬼屋实现

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
import "./style.css";
import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import * as dat from "dat.gui";

/**
 * Base
 */
// Debug
const gui = new dat.GUI();

// Canvas
const canvas = document.querySelector("canvas.webgl");

// Scene
const scene = new THREE.Scene();

/**
 * Textures
 */
const textureLoader = new THREE.TextureLoader();

const doorColorTexture = textureLoader.load(
  "../static/textures/door/color.jpg"
);
const doorAlphaTexture = textureLoader.load(
  "../static/textures/door/alpha.jpg"
);
const doorAmbientOcclusionTexture = textureLoader.load(
  "../static/textures/door/ambientOcclusion.jpg"
);
const doorHeightTexture = textureLoader.load(
  "../static/textures/door/height.jpg"
);
const doorNormalTexture = textureLoader.load(
  "../static/textures/door/normal.jpg"
);
const doorMetalnessTexture = textureLoader.load(
  "../static/textures/door/metalness.jpg"
);
const doorRoughnessTexture = textureLoader.load(
  "../static/textures/door/roughness.jpg"
);

const bricksColorTexture = textureLoader.load(
  "../static/textures/bricks/color.jpg"
);
const bricksAmbientOcclusionTexture = textureLoader.load(
  "../static/textures/bricks/ambientOcclusion.jpg"
);
const bricksNormalTexture = textureLoader.load(
  "../static/textures/bricks/normal.jpg"
);
const bricksRoughnessTexture = textureLoader.load(
  "../static/textures/bricks/roughness.jpg"
);

const grassColorTexture = textureLoader.load(
  "../static/textures/grass/color.jpg"
);
const grassAmbientOcclusionTexture = textureLoader.load(
  "../static/textures/grass/ambientOcclusion.jpg"
);
const grassNormalTexture = textureLoader.load(
  "../static/textures/grass/normal.jpg"
);
const grassRoughnessTexture = textureLoader.load(
  "../static/textures/grass/roughness.jpg"
);

grassColorTexture.repeat.set(8, 8);
grassAmbientOcclusionTexture.repeat.set(8, 8);
grassNormalTexture.repeat.set(8, 8);
grassRoughnessTexture.repeat.set(8, 8);

//使用RepeatWrapping，纹理将简单地重复到无穷大。 With RepeatWrapping the texture will simply repeat to infinity.
grassColorTexture.wrapS = THREE.RepeatWrapping;
grassAmbientOcclusionTexture.wrapS = THREE.RepeatWrapping;
grassNormalTexture.wrapS = THREE.RepeatWrapping;
grassRoughnessTexture.wrapS = THREE.RepeatWrapping;

grassColorTexture.wrapT = THREE.RepeatWrapping;
grassAmbientOcclusionTexture.wrapT = THREE.RepeatWrapping;
grassNormalTexture.wrapT = THREE.RepeatWrapping;
grassRoughnessTexture.wrapT = THREE.RepeatWrapping;

/**
 * House
 */
// House container
const house = new THREE.Group();
scene.add(house);

// Walls
const walls = new THREE.Mesh(
  new THREE.BoxGeometry(4, 2.5, 4),
  new THREE.MeshStandardMaterial({
    map: bricksColorTexture,
    aoMap: bricksAmbientOcclusionTexture,
    normalMap: bricksNormalTexture,
    roughnessMap: bricksRoughnessTexture,
  })
);
walls.castShadow = true;
walls.geometry.setAttribute(
  "uv2",
  new THREE.BufferAttribute(walls.geometry.attributes.uv.array, 2)
);
walls.position.y = 1.25;
house.add(walls);

// Roof
const roof = new THREE.Mesh(
  new THREE.ConeGeometry(3.5, 1, 4),
  new THREE.MeshStandardMaterial({ color: "#b35f45" })
);
roof.rotation.y = Math.PI * 0.25;
roof.position.y = 2.5 + 0.5;
house.add(roof);

// Door
const door = new THREE.Mesh(
  new THREE.PlaneGeometry(2, 2, 100, 100),
  new THREE.MeshStandardMaterial({
    map: doorColorTexture,
    transparent: true,
    alphaMap: doorAlphaTexture,
    aoMap: doorAmbientOcclusionTexture,
    displacementMap: doorHeightTexture,
    displacementScale: 0.1,
    normalMap: doorNormalTexture,
    metalnessMap: doorMetalnessTexture,
    roughnessMap: doorRoughnessTexture,
  })
);
door.geometry.setAttribute(
  "uv2",
  new THREE.BufferAttribute(door.geometry.attributes.uv.array, 2)
);
door.position.y = 1;
door.position.z = 2 + 0.01;
house.add(door);

// Bushes
const bushGeometry = new THREE.SphereGeometry(1, 16, 16);
const bushMaterial = new THREE.MeshStandardMaterial({ color: "#89c854" });

const bush1 = new THREE.Mesh(bushGeometry, bushMaterial);
bush1.castShadow = true;
bush1.scale.set(0.5, 0.5, 0.5);
bush1.position.set(0.8, 0.2, 2.2);

const bush2 = new THREE.Mesh(bushGeometry, bushMaterial);
bush2.castShadow = true;
bush2.scale.set(0.25, 0.25, 0.25);
bush2.position.set(1.4, 0.1, 2.1);

const bush3 = new THREE.Mesh(bushGeometry, bushMaterial);
bush3.castShadow = true;
bush3.scale.set(0.4, 0.4, 0.4);
bush3.position.set(-0.8, 0.1, 2.2);

const bush4 = new THREE.Mesh(bushGeometry, bushMaterial);
bush4.castShadow = true;
bush4.scale.set(0.15, 0.15, 0.15);
bush4.position.set(-1, 0.05, 2.6);

house.add(bush1, bush2, bush3, bush4);

// Graves
const graves = new THREE.Group();
scene.add(graves);

const graveGeometry = new THREE.BoxGeometry(0.6, 0.8, 0.1);
const graveMaterial = new THREE.MeshStandardMaterial({ color: "#727272" });

for (let i = 0; i < 50; i++) {
  const angle = Math.random() * Math.PI * 2; // Random angle
  const radius = 3 + Math.random() * 6; // Random radius
  const x = Math.cos(angle) * radius; // Get the x position using cosinus
  const z = Math.sin(angle) * radius; // Get the z position using sinus

  // Create the mesh
  const grave = new THREE.Mesh(graveGeometry, graveMaterial);
  grave.castShadow = true;

  // Position
  grave.position.set(x, 0.3, z);

  // Rotation
  grave.rotation.z = (Math.random() - 0.5) * 0.4;
  grave.rotation.y = (Math.random() - 0.5) * 0.4;

  // Add to the graves container
  graves.add(grave);
}

// Floor
const floor = new THREE.Mesh(
  new THREE.PlaneGeometry(20, 20),
  new THREE.MeshStandardMaterial({
    map: grassColorTexture,
    aoMap: grassAmbientOcclusionTexture,
    normalMap: grassNormalTexture,
    roughnessMap: grassRoughnessTexture,
  })
);
floor.receiveShadow = true;
floor.geometry.setAttribute(
  "uv2",
  new THREE.BufferAttribute(floor.geometry.attributes.uv.array, 2)
);
floor.rotation.x = -Math.PI * 0.5;
floor.position.y = 0;
scene.add(floor);

/**
 * Lights
 */
// Ambient light
const ambientLight = new THREE.AmbientLight("#b9d5ff", 0.3);
scene.add(ambientLight);

// Directional light
const moonLight = new THREE.DirectionalLight("#b9d5ff", 0.12);
moonLight.castShadow = true;
moonLight.shadow.mapSize.width = 256;
moonLight.shadow.mapSize.height = 256;
moonLight.shadow.camera.far = 15;
moonLight.position.set(4, 5, -2);
scene.add(moonLight);

// Door light
const doorLight = new THREE.PointLight("#ff7d46", 1, 7);
doorLight.castShadow = true;
doorLight.shadow.mapSize.width = 256;
doorLight.shadow.mapSize.height = 256;
doorLight.shadow.camera.far = 7;

doorLight.position.set(0, 2.2, 2.7);
house.add(doorLight);

/**
 * Ghosts
 */
const ghost1 = new THREE.PointLight("#ff00ff", 3, 3);
ghost1.castShadow = true;
ghost1.shadow.mapSize.width = 256;
ghost1.shadow.mapSize.height = 256;
ghost1.shadow.camera.far = 7;
scene.add(ghost1);

const ghost2 = new THREE.PointLight("#00ffff", 3, 3);
ghost2.castShadow = true;
ghost2.shadow.mapSize.width = 256;
ghost2.shadow.mapSize.height = 256;
ghost2.shadow.camera.far = 7;
scene.add(ghost2);

const ghost3 = new THREE.PointLight("#ff7800", 3, 3);
ghost3.castShadow = true;
ghost3.shadow.mapSize.width = 256;
ghost3.shadow.mapSize.height = 256;
ghost3.shadow.camera.far = 7;
scene.add(ghost3);

/**
 * Fog
 */
const fog = new THREE.Fog("#262837", 1, 15);
scene.fog = fog;

/**
 * Sizes
 */
const sizes = {
  width: window.innerWidth,
  height: window.innerHeight,
};

window.addEventListener("resize", () => {
  // Update sizes
  sizes.width = window.innerWidth;
  sizes.height = window.innerHeight;

  // Update camera
  camera.aspect = sizes.width / sizes.height;
  camera.updateProjectionMatrix();

  // Update renderer
  renderer.setSize(sizes.width, sizes.height);
  renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
});

/**
 * Camera
 */
// Base camera
const camera = new THREE.PerspectiveCamera(
  75,
  sizes.width / sizes.height,
  0.1,
  100
);
camera.position.x = 4;
camera.position.y = 2;
camera.position.z = 5;
scene.add(camera);

// Controls
const controls = new OrbitControls(camera, canvas);
controls.enableDamping = true;

/**
 * Renderer
 */
const renderer = new THREE.WebGLRenderer({
  canvas: canvas,
});
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFSoftShadowMap;
renderer.setClearColor("#262837");
renderer.setSize(sizes.width, sizes.height);
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));

/**
 * Animate
 */
const clock = new THREE.Clock();

const tick = () => {
  const elapsedTime = clock.getElapsedTime();

  // Ghosts
  const ghost1Angle = elapsedTime * 0.5;
  ghost1.position.x = Math.cos(ghost1Angle) * 4;
  ghost1.position.z = Math.sin(ghost1Angle) * 4;
  ghost1.position.y = Math.sin(elapsedTime * 3);

  const ghost2Angle = -elapsedTime * 0.32;
  ghost2.position.x = Math.cos(ghost2Angle) * 5;
  ghost2.position.z = Math.sin(ghost2Angle) * 5;
  ghost2.position.y = Math.sin(elapsedTime * 4) + Math.sin(elapsedTime * 2.5);

  const ghost3Angle = -elapsedTime * 0.18;
  ghost3.position.x =
    Math.cos(ghost3Angle) * (7 + Math.sin(elapsedTime * 0.32));
  ghost3.position.z = Math.sin(ghost3Angle) * (7 + Math.sin(elapsedTime * 0.5));
  ghost3.position.y = Math.sin(elapsedTime * 4) + Math.sin(elapsedTime * 2.5);

  // Update controls
  controls.update();

  // Render
  renderer.render(scene, camera);

  // Call tick again on the next frame
  window.requestAnimationFrame(tick);
};

tick();