粒子特效

src/data/desc.json

@@ -54,7 +54,7 @@
             "<br>",
             "游戏作者：古祠",
             "<br>",
-            "本塔遵循MIT开源协议，你可随意使用本塔的任何代码，不需要作者授权，也可以随意用于商业用途。",
+            "本塔遵循MIT开源协议。<a href=\"LICENSE\" target=\"_blank\">查看开源协议</a>",
             "<br>",
             "BGM来源：网易云音乐等",
             "<br>",

src/main.ts

@@ -3,6 +3,7 @@ import App from './App.vue';
 import App2 from './App2.vue';
 import './styles.less';
 import 'ant-design-vue/dist/antd.dark.css';
+import './plugin/particle/render';
 
 createApp(App).mount('#root');
 createApp(App2).mount('#root2');

src/plugin/particle/camera.ts

@@ -1,11 +1,31 @@
-import { Matrix4 } from '../webgl/martrix';
+import { TimingFn } from 'mutate-animate';
+import { Matrix4 } from '../webgl/matrix';
 import { Renderer } from './render';
 
-type Position3D = [number, number, number];
+export type Position3D = [number, number, number];
+
+type OneParameterAnimationType = 'x' | 'y' | 'z';
+type TwoParameterAnimationType = 'xy' | 'yx' | 'xz' | 'zx' | 'yz' | 'zy';
+type ThreeParameterAnimationType =
+    | 'xyz'
+    | 'xzy'
+    | 'yxz'
+    | 'yzx'
+    | 'zxy'
+    | 'zyx';
+type CameraAnimationTarget = 'eye' | 'at' | 'up';
+
+interface CameraAnimationType {
+    1: OneParameterAnimationType;
+    2: TwoParameterAnimationType;
+    3: ThreeParameterAnimationType;
+}
 
 export class Camera {
     /** 视图矩阵 */
-    matrix!: Matrix4;
+    view!: Matrix4;
+    /** 投影矩阵 */
+    projection!: Matrix4;
     /** 绑定的渲染器 */
     renderer?: Renderer;
 
@@ -13,8 +33,12 @@ export class Camera {
         this.reset();
     }
 
+    /**
+     * 初始化视角矩阵
+     */
     reset() {
-        this.matrix = new Matrix4();
+        this.view = new Matrix4();
+        this.projection = new Matrix4();
     }
 
     /**
@@ -39,7 +63,7 @@ export class Camera {
      * @param up 上方向
      */
     lookAt(eye: Position3D, at: Position3D, up: Position3D) {
-        this.matrix = this.calLookAt(eye, at, up);
+        this.view = this.calLookAt(eye, at, up);
     }
 
     /**
@@ -49,9 +73,62 @@ export class Camera {
      * @param up 上方向
      */
     transform(eye: Position3D, at: Position3D, up: Position3D) {
-        this.matrix.multipy(this.calLookAt(eye, at, up));
+        this.view.multipy(this.calLookAt(eye, at, up));
     }
 
+    /**
+     * 设置透视投影矩阵
+     * @param fov 垂直视角，即摄像机视锥体的上下平面夹角，单位角度
+     * @param aspect 近裁剪面的长宽比，即视野的长宽比
+     * @param near 近裁剪面的距离，即最近能看多远
+     * @param far 远裁剪面的距离，即最远能看多远
+     */
+    setPerspective(fov: number, aspect: number, near: number, far: number) {
+        this.projection = this.calPerspective(fov, aspect, near, far);
+    }
+
+    /**
+     * 设置正交投影矩阵
+     * @param left 可视空间的左边界
+     * @param right 可视空间的右边界
+     * @param bottom 可视空间的下边界
+     * @param top 可视空间的上边界
+     * @param near 近裁剪面的距离，即最近能看多远
+     * @param far 远裁剪面的距离，即最远能看多远
+     */
+    setOrthogonal(
+        left: number,
+        right: number,
+        bottom: number,
+        top: number,
+        near: number,
+        far: number
+    ) {
+        this.projection = this.calOrthogonal(
+            left,
+            right,
+            bottom,
+            top,
+            near,
+            far
+        );
+    }
+
+    /**
+     * 更新视角
+     */
+    update() {
+        this.renderer?.render();
+    }
+
+    applyAnimate<N extends keyof CameraAnimationType = 1>(
+        target: CameraAnimationTarget,
+        type: CameraAnimationType[N],
+        time: number = 1000,
+        timing?: TimingFn<N>,
+        relative: boolean = false
+    ) {}
+
     /**
      * 计算摄像机变换矩阵
      * @see https://github.com/bad4iz/cuon-matrix/blob/main/src/Matrix4/Matrix4.ts
@@ -92,9 +169,90 @@ export class Camera {
         matrix[0] = [sx, sy, sz, 0];
         matrix[1] = [ux, uy, uz, 0];
         matrix[2] = [-fx, -fy, -fz, 0];
-        matrix[4] = [0, 0, 0, 1];
+        matrix[3] = [0, 0, 0, 1];
 
         matrix.translate(-eyeX, -eyeY, -eyeZ);
         return matrix;
     }
+
+    /**
+     * 计算透视矩阵
+     * @see https://github.com/bad4iz/cuon-matrix/blob/main/src/Matrix4/Matrix4.ts
+     * @param fovy 垂直视角，即摄像机视锥体的上下平面夹角
+     * @param aspect 近裁剪面的长宽比，即视野的长宽比
+     * @param near 近裁剪面的距离，即最近能看多远
+     * @param far 远裁剪面的距离，即最远能看多远
+     */
+    private calPerspective(
+        fov: number,
+        aspect: number,
+        near: number,
+        far: number
+    ) {
+        if (near === far || aspect === 0) {
+            throw new Error(
+                `No sence can be set, because near === far or aspect === 0.`
+            );
+        }
+        if (near <= 0 || far <= 0) {
+            throw new Error(`near and far must be positive.`);
+        }
+
+        fov = (Math.PI * fov) / 180 / 2;
+        const s = Math.sin(fov);
+        if (s === 0) {
+            throw new Error(
+                `Cannot set perspectivity, because sin(fov) === 0.`
+            );
+        }
+
+        const rd = 1 / (far - near);
+        const ct = Math.cos(fov) / s;
+
+        const matrix = new Matrix4();
+
+        matrix[0] = [ct / aspect, 0, 0, 0];
+        matrix[1] = [0, ct, 0, 0];
+        matrix[2] = [0, 0, -(far + near) * rd, -2 * near * far * rd];
+        matrix[3] = [0, 0, -1, 0];
+
+        return matrix;
+    }
+
+    /**
+     * 设置正交投影矩阵
+     * @param left 可视空间的左边界
+     * @param right 可视空间的右边界
+     * @param bottom 可视空间的下边界
+     * @param top 可视空间的上边界
+     * @param near 近裁剪面的距离，即最近能看多远
+     * @param far 远裁剪面的距离，即最远能看多远
+     */
+    private calOrthogonal(
+        left: number,
+        right: number,
+        bottom: number,
+        top: number,
+        near: number,
+        far: number
+    ) {
+        if (left === right || bottom === top || near === far) {
+            throw new Error(
+                `Cannot set Orthogonality, because left === right or top === bottom or near === far.`
+            );
+        }
+
+        const rw = 1 / (right - left);
+        const rh = 1 / (top - bottom);
+        const rd = 1 / (far - near);
+
+        const matrix = new Matrix4();
+
+        matrix[0] = [2 * rw, 0, 0, -(right + left) * rw];
+        matrix[1] = [0, 2 * rh, 0, -(top + bottom) * rh];
+        matrix[2] = [0, 0, -2 * rd, -(far + near) * rd];
+        matrix[3] = [0, 0, 0, 1];
+
+        return matrix;
+    }
 }

src/plugin/particle/particle.ts

@@ -3,30 +3,47 @@ import { has } from '../utils';
 import { Camera } from './camera';
 import { Renderer } from './render';
 
+export type ParticleColor = [number, number, number, number];
+
 interface ParticleThreshold {
     radius: number;
     color: number;
-    position: number;
+    posX: number;
+    posY: number;
+    posZ: number;
 }
 
-interface ParticleOne {
+export interface ParticleOne {
     x: number;
     y: number;
     z: number;
     r: number;
+    color: ParticleColor;
 }
 
 interface Loc3D extends Loc {
     z: number;
 }
 
+interface ParticleInfo {
+    pos: Loc3D;
+    density: number;
+    color: ParticleColor;
+    radius: number;
+    threshold: ParticleThreshold;
+}
+
 export class Particle {
     /** 绑定的摄像机 */
     camera?: Camera;
     /** 粒子中心位置 */
-    pos: Loc3D;
-    /** 粒子密度 */
-    density: number;
+    pos: Loc3D = { x: 0, y: 0, z: 0 };
+    /** 粒子密度，即粒子总数 */
+    density: number = 50;
+    /** 粒子颜色 */
+    color: ParticleColor = [0, 0, 0, 0];
+    /** 每个粒子的半径 */
+    radius: number = 2;
     /** 渲染器 */
     renderer?: Renderer;
 
@@ -37,17 +54,22 @@ export class Particle {
     private needUpdate: boolean = false;
     private ticker: Ticker = new Ticker();
 
+    /** 设置信息前的信息 */
+    private originInfo: DeepPartial<ParticleInfo> = {};
+
     /** 各个属性的阈值 */
     threshold: ParticleThreshold = {
         radius: 2,
-        color: 16,
-        position: 50
+        color: 0.1,
+        posX: 0.1,
+        posY: 0.1,
+        posZ: 0.1
     };
 
-    constructor(density: number, x: number, y: number, z: number) {
-        this.pos = { x, y, z };
-        this.density = density;
-        this.ticker.add(this.updateParticleData);
+    constructor() {
+        this.ticker.add(() => {
+            this.updateParticleData.call(this);
+        });
     }
 
     /**
@@ -55,9 +77,53 @@ export class Particle {
      * @param x 横坐标
      * @param y 纵坐标
      */
-    setPos(x?: number, y?: number): Particle {
-        has(x) && (this.pos.x = x);
-        has(y) && (this.pos.y = y);
+    setPos(x?: number, y?: number, z?: number): Particle {
+        this.originInfo.pos ??= {};
+        if (has(x)) {
+            this.pos.x = x;
+            this.originInfo.pos.x = x;
+        }
+        if (has(y)) {
+            this.pos.y = y;
+            this.originInfo.pos.y = y;
+        }
+        if (has(z)) {
+            this.pos.z = z;
+            this.originInfo.pos.z = z;
+        }
+        this.needUpdate = true;
+        return this;
+    }
+
+    /**
+     * 设置粒子的密度，即粒子总数
+     * @param density 密度
+     */
+    setDensity(density: number): Particle {
+        this.density = density;
+        this.originInfo.density = density;
+        this.needUpdate = true;
+        return this;
+    }
+
+    /**
+     * 设置粒子的颜色
+     * @param color 颜色
+     */
+    setColor(color: ParticleColor) {
+        this.color = color;
+        this.originInfo.color = color;
+        this.needUpdate = true;
+        return this;
+    }
+
+    /**
+     * 设置粒子的半径
+     * @param radius 半径
+     */
+    setRadius(radius: number) {
+        this.radius = radius;
+        this.originInfo.radius = radius;
         this.needUpdate = true;
         return this;
     }
@@ -67,19 +133,18 @@ export class Particle {
      * @param data 阈值信息
      */
     setThreshold(data: Partial<ParticleThreshold>): Particle {
-        const { radius, color, position } = data;
-        has(radius) && (this.threshold.radius = radius);
-        has(color) && (this.threshold.radius = color);
-        has(position) && (this.threshold.radius = position);
+        this.originInfo.threshold ??= {};
+        for (const [key, value] of Object.entries(data) as [
+            keyof ParticleThreshold,
+            any
+        ][]) {
+            this.threshold[key] = value;
+            this.originInfo.threshold[key] = value;
+        }
         this.needUpdate = true;
         return this;
     }
 
-    /**
-     * 生成粒子
-     */
-    generate() {}
-
     /**
      * 添加到一个渲染器上
      * @param renderer 渲染器
@@ -102,11 +167,137 @@ export class Particle {
         this.needUpdate = true;
     }
 
+    /**
+     * 生成粒子，注意该函数会删除当前的所有粒子，然后再重新生成
+     */
+    generate() {
+        const particles = this.generateNewParticles(this.density);
+        this.list = particles;
+    }
+
     /**
      * 每帧执行的粒子更新器
      */
     private updateParticleData() {
-        if (!this.needUpdate) return;
+        if (!this.needUpdate || this.list.length === 0) return;
         this.needUpdate = false;
+
+        // check number
+        if (this.list.length > this.density) {
+            this.list.splice(this.density);
+        } else if (this.list.length < this.density) {
+            this.list.push(
+                ...this.generateNewParticles(this.density - this.list.length)
+            );
+        }
+
+        // check radius
+        if (has(this.originInfo.radius)) {
+            if (this.radius !== this.originInfo.radius) {
+                const delta = this.radius - this.originInfo.radius;
+                this.list.forEach(v => {
+                    v.r += delta;
+                });
+            }
+        }
+
+        // check color
+        if (has(this.originInfo.color)) {
+            if (!core.same(this.color, this.originInfo.color)) {
+                const r = this.color[0] - this.originInfo.color[0]!;
+                const g = this.color[1] - this.originInfo.color[1]!;
+                const b = this.color[2] - this.originInfo.color[2]!;
+                const a = this.color[3] - this.originInfo.color[3]!;
+                this.list.forEach(v => {
+                    v.color[0] += r;
+                    v.color[1] += g;
+                    v.color[2] += b;
+                    v.color[3] += a;
+                });
+            }
+        }
+
+        // check position
+        if (has(this.originInfo.pos)) {
+            if (!core.same(this.pos, this.originInfo.pos)) {
+                const x = this.pos.x - this.originInfo.pos.x!;
+                const y = this.pos.y - this.originInfo.pos.y!;
+                const z = this.pos.z - this.originInfo.pos.z!;
+                this.list.forEach(v => {
+                    v.x += x;
+                    v.y += y;
+                    v.z += z;
+                });
+            }
+        }
+
+        // check threshold
+        if (has(this.originInfo.threshold)) {
+            for (const [key, v] of Object.entries(this.threshold) as [
+                keyof ParticleThreshold,
+                any
+            ][]) {
+                const now = v;
+                const origin = this.originInfo.threshold[key];
+                if (origin === now || !has(origin)) {
+                    continue;
+                }
+                const ratio = now / origin;
+                if (key === 'posX') {
+                    this.list.forEach(v => {
+                        v.x = (v.x - this.pos.x) * ratio + this.pos.x;
+                    });
+                } else if (key === 'posY') {
+                    this.list.forEach(v => {
+                        v.y = (v.y - this.pos.y) * ratio + this.pos.y;
+                    });
+                } else if (key === 'posZ') {
+                    this.list.forEach(v => {
+                        v.z = (v.z - this.pos.z) * ratio + this.pos.z;
+                    });
+                } else if (key === 'radius') {
+                    this.list.forEach(v => {
+                        v.r = (v.r - this.radius) * ratio + this.radius;
+                    });
+                } else {
+                    this.list.forEach(v => {
+                        v.color = v.color.map((v, i) => {
+                            return (v - this.color[i]) * ratio + this.color[i];
+                        }) as ParticleColor;
+                    });
+                }
+            }
+        }
+
+        this.render();
+    }
+
+    /**
+     * 生成指定数量的粒子
+     * @param num 生成数量
+     */
+    private generateNewParticles(num: number): ParticleOne[] {
+        const res: ParticleOne[] = new Array(num);
+        const { posX, posY, posZ, radius, color } = this.threshold;
+        for (let i = 0; i < num; i++) {
+            const p: ParticleOne = {
+                x: this.pos.x + (Math.random() - 0.5) * 2 * posX,
+                y: this.pos.y + (Math.random() - 0.5) * 2 * posY,
+                z: this.pos.z + (Math.random() - 0.5) * 2 * posZ,
+                r: this.radius + (Math.random() - 0.5) * 2 * radius,
+                color: [0, 0, 0, 0].map(
+                    (v, i) => this.color[i] + (Math.random() - 0.5) * 2 * color
+                ) as ParticleColor
+            };
+            res[i] = p;
+        }
+        return res;
+    }
+
+    /**
+     * 渲染这个粒子
+     */
+    private render() {
+        this.renderer?.render(this);
     }
 }

src/plugin/particle/render.ts

@@ -1,6 +1,50 @@
+import { circle, sleep, Ticker } from 'mutate-animate';
+import { has } from '../utils';
+import { createProgram } from '../webgl/canvas';
+import { Matrix4 } from '../webgl/matrix';
 import { isWebGLSupported } from '../webgl/utils';
-import { Camera } from './camera';
-import { Particle } from './particle';
+import { Camera, Position3D } from './camera';
+import { Particle, ParticleColor, ParticleOne } from './particle';
+
+// 顶点着色器与片元着色器
+// 很像C对吧（但这不是C，是glsl
+const vshader = `
+    attribute vec4 position;
+    attribute vec4 color;
+    attribute vec2 radius;
+    uniform mat4 camera;
+    uniform mat4 projection;
+    varying vec4 vColor;
+    varying vec4 vPosition;
+    varying float vRadius;
+
+    void main() {
+        vec4 p = projection * camera * position;
+        gl_Position = p;
+        vColor = color;
+        vPosition = p;
+        vRadius = radius.x;
+        gl_PointSize = vRadius;
+    }
+`;
+const fshader = `
+    #ifdef GL_ES
+        precision mediump float;
+    #endif
+
+    varying vec4 vColor;
+    varying vec4 vPosition;
+    varying float vRadius;
+
+    void main() {
+        vec2 position = gl_PointCoord.xy;
+        if (distance(position, vec2(0.5)) > 0.5) {
+            discard;
+        } else {
+            gl_FragColor = vColor;
+        }
+    }
+`;
 
 export class Renderer {
     /** 粒子列表 */
@@ -13,12 +57,43 @@ export class Renderer {
     camera?: Camera;
     /** 缩放比例 */
     ratio: number = devicePixelRatio;
+    /** gl的程序对象 */
+    program: WebGLProgram;
 
-    constructor() {
+    /** 画布缓冲区 */
+    private buffer: WebGLBuffer;
+    /** 各个attribute的内存地址 */
+    private attribLocation: Record<string, number> = {};
+    /** 各个uniform的内存地址 */
+    private uniformLocation: Record<string, WebGLUniformLocation> = {};
+
+    private static readonly attributes: string[] = [
+        'position',
+        'color',
+        'radius'
+    ];
+    private static readonly uniforms: string[] = ['camera', 'projection'];
+
+    constructor(width?: number, height?: number) {
         if (!isWebGLSupported) {
             throw new Error(`Your service or browser does not support webgl!`);
         }
+        this.canvas.style.width = `${width}px`;
+        this.canvas.style.height = `${height}px`;
+        if (has(width)) {
+            this.canvas.width = width * devicePixelRatio;
+        }
+        if (has(height)) {
+            this.canvas.height = height * devicePixelRatio;
+        }
         this.gl = this.canvas.getContext('webgl')!;
+        this.program = createProgram(this.gl, vshader, fshader);
+        this.gl.clearColor(0.0, 0.0, 0.0, 0.0);
+        this.buffer = this.bindBuffer();
+        this.getGLVariblesLocation();
+        this.gl.enable(this.gl.BLEND);
+        this.gl.enable(this.gl.DEPTH_TEST);
+        this.gl.blendFunc(this.gl.SRC_ALPHA, this.gl.ONE_MINUS_SRC_ALPHA);
     }
 
     /**
@@ -80,4 +155,187 @@ export class Renderer {
         if (index === -1) return;
         this.particleList.splice(index, 1);
     }
+
+    /**
+     * 设置画布的背景色
+     * @param color 背景色
+     */
+    setBackground(color: ParticleColor) {
+        this.gl.clearColor(...color);
+    }
+
+    /**
+     * 渲染所有或单个粒子
+     */
+    render(particle?: Particle | number) {
+        const { position, color } = this.attribLocation;
+        const { camera } = this.uniformLocation;
+        if (!has(position) || !has(color)) {
+            throw new Error(`Unexpected unset of attribute location`);
+        }
+        if (!has(camera)) {
+            throw new Error(`Unexpected unset of uniform location`);
+        }
+        this.gl.clear(this.gl.COLOR_BUFFER_BIT | this.gl.DEPTH_BUFFER_BIT);
+        if (!has(particle)) this.particleList.forEach(v => this.renderOne(v));
+        else {
+            const p =
+                typeof particle === 'number'
+                    ? this.particleList[particle]
+                    : particle;
+            this.renderOne(p);
+        }
+    }
+
+    /**
+     * 绑定画布的缓冲区
+     * @returns 绑定的缓冲区
+     */
+    private bindBuffer() {
+        const buffer = this.gl.createBuffer();
+        if (!buffer) throw this.notSupport();
+        this.gl.bindBuffer(this.gl.ARRAY_BUFFER, buffer);
+        return buffer;
+    }
+
+    /**
+     * 更新一个粒子的缓冲区数据
+     * @param array 粒子的粒子元素数组
+     */
+    private updateOneParticleBufferData(array: ParticleOne[]) {
+        const particleArray = new Float32Array(
+            array
+                .map(v => {
+                    const [r, g, b, a] = v.color;
+                    return [v.x, v.y, v.z, r, g, b, a, v.r, 0];
+                })
+                .flat()
+        );
+        this.gl.bufferData(
+            this.gl.ARRAY_BUFFER,
+            particleArray,
+            this.gl.DYNAMIC_DRAW
+        );
+        return particleArray;
+    }
+
+    /**
+     * 获取gl变量的内存地址
+     */
+    private getGLVariblesLocation() {
+        Renderer.attributes.forEach(v => {
+            this.attribLocation[v] = this.gl.getAttribLocation(this.program, v);
+        });
+        Renderer.uniforms.forEach(v => {
+            const loc = this.gl.getUniformLocation(this.program, v);
+            if (!loc) {
+                throw new Error(`Cannot get the location of uniform '${v}'`);
+            }
+            this.uniformLocation[v] = loc;
+        });
+    }
+
+    /**
+     * 渲染某一个粒子
+     * @param particle 要渲染的粒子
+     */
+    private renderOne(particle: Particle) {
+        const arr = this.updateOneParticleBufferData(particle.list);
+        const size = arr.BYTES_PER_ELEMENT;
+
+        const { position, color, radius } = this.attribLocation;
+        const { camera, projection } = this.uniformLocation;
+
+        // 给gl变量赋值
+        this.gl.vertexAttribPointer(
+            position,
+            3,
+            this.gl.FLOAT,
+            false,
+            size * 9,
+            0
+        );
+        this.gl.vertexAttribPointer(
+            color,
+            4,
+            this.gl.FLOAT,
+            false,
+            size * 9,
+            size * 3
+        );
+        this.gl.vertexAttribPointer(
+            radius,
+            2,
+            this.gl.FLOAT,
+            false,
+            size * 9,
+            size * 7
+        );
+        this.gl.enableVertexAttribArray(position);
+        this.gl.enableVertexAttribArray(color);
+        this.gl.enableVertexAttribArray(radius);
+        const matrix = new Matrix4();
+        const c =
+            this.camera?.view.toWebGLFloat32Array() ??
+            matrix.toWebGLFloat32Array();
+        const p =
+            this.camera?.projection.toWebGLFloat32Array() ??
+            matrix.toWebGLFloat32Array();
+
+        this.gl.uniformMatrix4fv(camera, false, c);
+        this.gl.uniformMatrix4fv(projection, false, p);
+
+        // 绘制
+        this.gl.drawArrays(this.gl.POINTS, 0, particle.list.length);
+    }
+
+    private notSupport() {
+        throw new Error(`Your service or browser does not support webgl!`);
+    }
 }
+
+window.addEventListener('load', async () => {
+    const renderer = new Renderer(
+        480 * core.domStyle.scale,
+        480 * core.domStyle.scale
+    );
+    const particle = new Particle();
+    const camera = new Camera();
+    renderer.bindCamera(camera);
+    particle.appendTo(renderer);
+    renderer.append(core.dom.gameDraw);
+    camera.lookAt([1, 1, 5], [0, 0, 0], [0, 1, 0]);
+    camera.setPerspective(20, 1, 1, 100);
+
+    console.log(camera.view, camera.projection);
+
+    particle.setColor([0.3, 0.6, 0.7, 0.7]);
+    particle.setRadius(3);
+    particle.setDensity(1000);
+    particle.setThreshold({
+        posX: 0.2,
+        posY: 0.2,
+        posZ: 10,
+        radius: 0,
+        color: 0
+    });
+    particle.generate();
+
+    renderer.canvas.style.position = 'absolute';
+    renderer.canvas.style.zIndex = '160';
+
+    renderer.render();
+
+    await sleep(5000);
+    const now: Position3D = [1, 1, 5];
+    const path = circle(1, 1000, [0, 0]);
+    let f = 0;
+    new Ticker().add(() => {
+        camera.lookAt(now, [0, 0, 0], [0, 1, 0]);
+        const [x, y] = path(f / 1000 / 2000);
+        f++;
+        now[0] = x;
+        now[1] = y;
+        renderer.render();
+    });
+});

src/plugin/webgl/canvas.ts

@@ -87,6 +87,8 @@ export function createProgram(
         throw new Error(`Program link fail: ${err}`);
     }
 
+    gl.useProgram(program);
+
     return program;
 }
 
@@ -113,7 +115,7 @@ export function loadShader(
     gl.compileShader(shader);
 
     // 检查是否编译成功
-    const compiled = gl.getShaderParameter(gl, gl.COMPILE_STATUS);
+    const compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
     if (!compiled) {
         const err = gl.getShaderInfoLog(shader);
         throw new Error(`Shader compile fail: ${err}`);

src/plugin/webgl/matrix.ts

@@ -1,3 +1,4 @@
+import { cloneDeep } from 'lodash';
 import { has } from '../utils';
 
 export class Matrix extends Array<number[]> {
@@ -40,26 +41,31 @@ export class Matrix extends Array<number[]> {
             );
         }
         const n = this.length;
-        const arr = this.map(v => v.slice());
+        const arr = Array.from(this).map(v => v.slice());
         for (let i = 0; i < n; i++) {
             for (let j = 0; j < n; j++) {
+                this[i][j] = 0;
                 for (let k = 0; k < n; k++) {
-                    this[i][j] = arr[i][k] * matrix[k][j];
+                    this[i][j] += arr[i][k] * matrix[k][j];
                 }
             }
         }
+
         return this;
     }
 }
 
 export class Matrix4 extends Matrix {
     constructor(...n: number[][]) {
-        n ??= [
-            [1, 0, 0, 0],
-            [0, 1, 0, 0],
-            [0, 0, 1, 0],
-            [0, 0, 0, 1]
-        ];
+        if (n.length === 0) {
+            n = [
+                [1, 0, 0, 0],
+                [0, 1, 0, 0],
+                [0, 0, 1, 0],
+                [0, 0, 0, 1]
+            ];
+        }
+
         if (n.length !== 4) {
             throw new TypeError(`The length of delivered array must be 4.`);
         }
@@ -142,7 +148,7 @@ export class Matrix4 extends Matrix {
      */
     transpose(target: 'this' | 'new' = 'new'): Matrix4 {
         const t = target === 'this' ? this : new Matrix4();
-        const arr = this.map(v => v.slice());
+        const arr = Array.from(this).map(v => v.slice());
         for (let i = 0; i < 4; i++) {
             for (let j = 0; j < 4; j++) {
                 t[i][j] = arr[j][i];
@@ -155,6 +161,6 @@ export class Matrix4 extends Matrix {
      * 转换成列主序的Float32Array，用于webgl
      */
     toWebGLFloat32Array(): Float32Array {
-        return new Float32Array(this.transpose().flat());
+        return new Float32Array(Array.from(this.transpose()).flat());
     }
 }

src/types/util.d.ts

@@ -822,12 +822,12 @@ type DeepReadonly<T> = {
 };
 
 /**
- * 深度可选一个对象，使其所有属性都
+ * 深度可选一个对象，使其所有属性都可选
  */
 type DeepPartial<T> = {
     [P in keyof T]?: T[P] extends number | string | boolean
         ? T[P]
-        : DeepReadonly<T[P]>;
+        : DeepPartial<T[P]>;
 };
 
 /**
@@ -836,7 +836,7 @@ type DeepPartial<T> = {
 type DeepRequired<T> = {
     [P in keyof T]-?: T[P] extends number | string | boolean
         ? T[P]
-        : DeepReadonly<T[P]>;
+        : DeepRequired<T[P]>;
 };
 
 /**
@@ -852,7 +852,7 @@ type Writable<T> = {
 type DeepWritable<T> = {
     -readonly [P in keyof T]: T[P] extends number | string | boolean
         ? T[P]
-        : DeepReadonly<T[P]>;
+        : DeepWritable<T[P]>;
 };
 
 /**