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[up] README 水族馆和人体
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‎README.md‎

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-|-|-|
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光线追踪 | [源代码位置](./tinyraytracerYD) | <div align=center><img src="./result/tinyraytracer.jpg" width=200 ></div> |
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光栅渲染器 | [源代码位置](./tinyrendererYD) | <div align=center><img src="./result/africanhead.png" width=200 ></div> |
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OpenGL 拖尾、刀光、剑光、尾焰效果| [源代码位置](./streak) | <div align=center><img src="./result/streak.gif" width=150 ></div> |
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医疗人体3D展示系统 | [源代码位置](./moving-light-strip) | <div align=center><img src="./result/moving-light-strip.gif" width=150 ></div> |
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3D海洋馆（带鱼群骨骼动画）| [源代码位置](./streak) | <div align=center><img src="./result/wallpaper.gif" width=150 ></div> |
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OpenGL 拖尾、刀光、剑光、尾焰效果| [源代码位置](./wallpaper) | <div align=center><img src="./result/streak.gif" width=150 ></div> |
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3D-PLY文件读取曲率计算| [源代码位置](./3D-PLY) | <img src="./result/curvature.png" width=300> |
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3D-骨架提取| [源代码位置](./3D-skeleton) | <div align=center><img src="./result/skeleton.png" width=200></div> |
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虚化模糊场景（类似摄像机的人像效果）| [源代码位置](./blur-scene-gaussian--3d) | <img src="./result/blur-scene-gaussian--3d.jpg" width=300> |
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虚化模糊场景Blur（类似景深效果）| [源代码位置](./blur-scene-gaussian--3d) | <img src="./result/blur-scene-gaussian--3d.jpg" width=300> |
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人物透视X光效果| [源代码位置](./x-ray-scene_3d) | <img src="./result/x-ray-scene_3d.png" width=300> |
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OpenGL ES Uniform缓冲| [源代码位置](./opengles-uniform-buffer) | <div align=center><img src="./result/opengles-uniform-buffer.jfif" width=150></div> | |
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3D摄像机漫游| [源代码位置](./CameraRoam) | <img src="./result/CameraRoam.jfif" width=300> |

‎moving-light-strip/README.md‎

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# 医疗人体3D展示系统
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作者：憨豆酒（YinDou），yindou97@163.com，熟悉图形学，图像处理领域，经常更新的学习总结仓库：<https://github.com/douysu/person-summary> 如果对您有帮助还请帮忙点一个star，如果大家发现错误以及不合理之处，还希望多多指出。
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- [我的Github](https://github.com/douysu)
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- [我的博客](https://blog.csdn.net/ModestBean)
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- [我的知乎](https://zhuanlan.zhihu.com/c_1218472587279433728)
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# 介绍
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为医疗项目APP接入3D人体展示模块，带移动光带效果
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![](../result/moving-light-strip.gif)
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# 开发
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基于OpenGL ES 3.0 开发
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# 运行
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将代码，资源复制到Android Studio中，运行。

‎moving-light-strip/frag_body.sh‎

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#version 300 es
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precision mediump float;
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//接收从顶点着色器过来的参数
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in vec3 gzqd; //总光照强度
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in vec3 vPosition;//传给片元的顶点位置
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out vec4 fragColor;//输出到的片元颜色
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uniform float lineWidth;//传入线的宽度
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uniform float lineBright;//传入线的亮度系数
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uniform float obY;//传入线的Y位置
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void main()
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{
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const float ALPHA=0.5f;//颜色的透明通道
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const vec3 PFColor=vec3(0.11764705,0.43137254,0.97647058);//皮肤的颜色
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const vec3 LineColor=vec3(0.11764705,0.43137254,0.97647058);//光带的颜色
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vec3 finalColor=PFColor*gzqd;//得到光照后皮肤颜色
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float factor=abs(vPosition.y-obY)/lineWidth;//利用数学公式将人体分为三段 光带，光带以上，光带已下,光带部分的值以线的位置对称
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factor=(1.0-smoothstep(0.0,1.0,factor));//利用Hermite差值转换值，光带部分为0~1，1~0光滑的数，光带以上，光带已下部分均为0
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fragColor=vec4(finalColor+LineColor*factor*lineBright,ALPHA+(1.0-ALPHA)*factor);//将皮肤颜色线条颜色传给片元，更改透明通道，身体为0部分即没有光带
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}

‎moving-light-strip/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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android:versionCode="1"
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android:versionName="1.0" package="com.bn.activty">
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<application android:icon="@drawable/icon" android:label="@string/app_name">
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<activity android:name="com.bn.activty.MainActivity"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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<uses-sdk android:targetSdkVersion="21" android:minSdkVersion="18"></uses-sdk>
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</manifest>

‎moving-light-strip/src/main/assets/shader/frag_body.sh‎

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#version 300 es
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precision mediump float;
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//接收从顶点着色器过来的参数
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in vec3 gzqd; //总光照强度
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in vec3 vPosition;//传给片元的顶点位置
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out vec4 fragColor;//输出到的片元颜色
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uniform float lineWidth;//传入线的宽度
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uniform float lineBright;//传入线的亮度系数
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uniform float obY;//传入线的Y位置
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void main()
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{
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const float ALPHA=0.5f;//颜色的透明通道
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const vec3 PFColor=vec3(0.11764705,0.43137254,0.97647058);//皮肤的颜色
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const vec3 LineColor=vec3(0.11764705,0.43137254,0.97647058);//光带的颜色
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vec3 finalColor=PFColor*gzqd;//得到光照后皮肤颜色
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float factor=abs(vPosition.y-obY)/lineWidth;//利用数学公式将人体分为三段 光带，光带以上，光带已下,光带部分的值以线的位置对称
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factor=(1.0-smoothstep(0.0,1.0,factor));//利用Hermite差值转换值，光带部分为0~1，1~0光滑的数，光带以上，光带已下部分均为0
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fragColor=vec4(finalColor+LineColor*factor*lineBright,ALPHA+(1.0-ALPHA)*factor);//将皮肤颜色线条颜色传给片元，更改透明通道，身体为0部分即没有光带
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}

‎moving-light-strip/src/main/assets/shader/frag_organ.sh‎

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#version 300 es
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precision mediump float;
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//接收从顶点着色器过来的参数
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in vec4 ambient;//顶点着色器传入的环境光强度
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in vec4 diffuse;//顶点着色器传入的散射光强度
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in vec4 specular;//顶点着色器传入的镜面光强度
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uniform vec4 organColor;//传入的器官颜色
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uniform float brightBreath;//传入的呼吸参数
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out vec4 fragColor;//输出到的片元颜色
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void main()
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{
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vec4 finalColor=vec4(organColor.r*brightBreath,organColor.g*brightBreath,organColor.b*brightBreath,organColor.a);//计算呼吸颜色
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fragColor = finalColor*ambient+finalColor*specular+finalColor*diffuse;//给此片元最终颜色
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}

‎moving-light-strip/src/main/assets/shader/vertex_body.sh‎

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#version 300 es
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uniform mat4 uMVPMatrix; //总变换矩阵
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uniform mat4 uMMatrix; //变换矩阵
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uniform vec3 uLightLocation; //光源位置
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uniform vec3 uCamera; //摄像机位置
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in vec3 aPosition; //顶点位置
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in vec3 aNormal; //顶点法向量
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//用于传递给片元着色器的变量
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out vec3 gzqd;//总光照强度
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out vec3 vPosition;//物体坐标系位置
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//定位光光照计算的方法
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vec4 pointLight(
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in vec3 normal,
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in vec3 lightLocation,
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in vec4 lightAmbient,
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in vec4 lightDiffuse,
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in vec4 lightSpecular
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){
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vec4 result=vec4(0.0);
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result=result+lightAmbient;
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vec3 normalTarget=aPosition+normal;
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vec3 newNormal=(uMMatrix*vec4(normalTarget,1)).xyz-(uMMatrix*vec4(aPosition,1)).xyz;
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newNormal=normalize(newNormal);
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vec3 eye= normalize(uCamera-(uMMatrix*vec4(aPosition,1)).xyz);
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vec3 vp= normalize(lightLocation-(uMMatrix*vec4(aPosition,1)).xyz);
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vp=normalize(vp);
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vec3 halfVector=normalize(vp+eye);
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float shininess=50.0;
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float nDotViewPosition=max(0.0,dot(newNormal,vp));
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result=result+lightDiffuse*nDotViewPosition;
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float nDotViewHalfVector=dot(newNormal,halfVector);
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float powerFactor=max(0.0,pow(nDotViewHalfVector,shininess));
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result=result+lightSpecular*powerFactor;
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return result;
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}
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void main()
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{
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gl_Position = uMVPMatrix * vec4(aPosition,1); //根据总变换矩阵计算此次绘制此顶点位置
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//得到最终的光照强度
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gzqd=pointLight(normalize(aNormal),uLightLocation,vec4(0.2,0.2,0.2,1.0),vec4(0.9,0.9,0.9,1.0),vec4(0.4,0.4,0.4,1.0)).rgb;
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//将物体位置传给片元着色器
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vPosition=aPosition;
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}

‎moving-light-strip/src/main/assets/shader/vertex_organ.sh‎

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#version 300 es
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uniform mat4 uMVPMatrix; //总变换矩阵
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uniform mat4 uMMatrix; //变换矩阵
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uniform vec3 uLightLocation; //光源位置
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uniform vec3 uCamera; //摄像机位置
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in vec3 aPosition; //顶点位置
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in vec3 aNormal; //顶点法向量
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//用于传递给片元着色器的变量
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out vec4 ambient;//最终环境光
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out vec4 diffuse;//最终散射光
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out vec4 specular;//最终镜面光
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out vec3 vPosition;//物体坐标系位置
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//定位光光照计算的方法
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void pointLight(
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in vec3 normal,
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inout vec4 ambient,
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inout vec4 diffuse,
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inout vec4 specular,
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in vec3 lightLocation,
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in vec4 lightAmbient,
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in vec4 lightDiffuse,
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in vec4 lightSpecular
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){
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ambient=lightAmbient;
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vec3 normalTarget=aPosition+normal;
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vec3 newNormal=(uMMatrix*vec4(normalTarget,1)).xyz-(uMMatrix*vec4(aPosition,1)).xyz;
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newNormal=normalize(newNormal);
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vec3 eye= normalize(uCamera-(uMMatrix*vec4(aPosition,1)).xyz);
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vec3 vp= normalize(lightLocation-(uMMatrix*vec4(aPosition,1)).xyz);
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vp=normalize(vp);
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vec3 halfVector=normalize(vp+eye);
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float shininess=50.0;
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float nDotViewPosition=max(0.0,dot(newNormal,vp));
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diffuse=lightDiffuse*nDotViewPosition;
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float nDotViewHalfVector=dot(newNormal,halfVector);
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float powerFactor=max(0.0,pow(nDotViewHalfVector,shininess));
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specular=lightSpecular*powerFactor;
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}
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void main()
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{
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gl_Position = uMVPMatrix * vec4(aPosition,1); //根据总变换矩阵计算此次绘制此顶点位置
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vec4 ambientTemp, diffuseTemp, specularTemp; //存放环境光、散射光、镜面反射光的临时变量
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//得到最终的环境光散射光和镜面光
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pointLight(normalize(aNormal),ambientTemp,diffuseTemp,specularTemp,uLightLocation,vec4(0.1,0.1,0.1,1.0),vec4(0.7,0.7,0.7,1.0),vec4(0.3,0.3,0.3,1.0));
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ambient=ambientTemp;//传递给片元最终环境光
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diffuse=diffuseTemp;//传递给片元最终散射光
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specular=specularTemp;//传给片元最终镜面光
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vPosition=aPosition;//将物体位置传给片元
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}

‎moving-light-strip/src/main/java/com/bn/activty/MainActivity.java‎

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package com.bn.activty;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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import android.view.WindowManager;
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import android.widget.AdapterView;
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import android.widget.BaseAdapter;
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import android.widget.LinearLayout;
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import android.widget.ListView;
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import android.widget.RadioButton;
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import android.widget.RadioGroup;
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import android.widget.TextView;
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import com.bn.util.Constant;
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import com.bn.util.MyFunction;
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public class MainActivity extends Activity {
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private MySurfaceView mGLSurfaceView;//自己SurfaceView
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String organStr[]=new String[]{"骨骼","大脑","食道","肺","心脏","肝脏","胰脏","胆囊","胃","脾","肠","肾","膀胱"};//男生器官字符串
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String womanorganStr[]=new String[]{"骨骼","大脑","食道","肺","心脏","肝脏","胰脏","胆囊","胃","子宫","肠","肾","膀胱"};//女生器官字符串
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int oldSelect=14;//记录上次点击的值
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float colorRed[]=new float[]{1.0f,0.0f,0.0f,1.0f};//红色
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ListView ls;//器官的listView
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BaseAdapter ba;//男的Adapter
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BaseAdapter baWoman;//女的Adapter
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@Override
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protected void onCreate(Bundle savedInstanceState)
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{
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super.onCreate(savedInstanceState);
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//设置为全屏
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN ,
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WindowManager.LayoutParams.FLAG_FULLSCREEN);
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//设置为横屏模式
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//setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
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setContentView(R.layout.main);
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mGLSurfaceView = new MySurfaceView(this);
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//将自定义的SurfaceView添加到外层LinearLayout中
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LinearLayout ll=(LinearLayout)findViewById(R.id.main_liner);
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ll.addView(mGLSurfaceView);
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mGLSurfaceView.requestFocus();//获取焦点
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mGLSurfaceView.setFocusableInTouchMode(true);//设置为可触控
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//获得单选按钮
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RadioButton RadioMan=(RadioButton)this.findViewById(R.id.RadioMan);
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RadioButton RadioWoman=(RadioButton)this.findViewById(R.id.RadioWoman);
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//获得ListView
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ls=(ListView)this.findViewById(R.id.listOrgan);
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//男Adapter
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ba=new BaseAdapter()
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{
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@Override
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public int getCount() {
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return organStr.length;
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}
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@Override
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public Object getItem(int arg0) { return null; }
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@Override
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public long getItemId(int arg0) { return 0; }
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@Override
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public View getView(int arg0, View arg1, ViewGroup arg2) {
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LinearLayout ll=new LinearLayout(MainActivity.this);
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ll.setOrientation(LinearLayout.VERTICAL);//设置朝向
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//初始化TextView
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TextView tv=new TextView(MainActivity.this);
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tv.setText(organStr[arg0]);
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tv.setTextSize(24);//设置字体大小
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tv.setTextColor(MainActivity.this.getResources().getColor(R.color.white));//设置字体颜色
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tv.setGravity(Gravity.LEFT);//靠左
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ll.addView(tv);
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return ll;
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}
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};
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//女Adapter
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baWoman=new BaseAdapter()
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{
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@Override
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public int getCount() {
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return womanorganStr.length;
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}
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@Override
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public Object getItem(int arg0) { return null; }
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@Override
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public long getItemId(int arg0) { return 0; }
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@Override
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public View getView(int arg0, View arg1, ViewGroup arg2) {
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LinearLayout ll=new LinearLayout(MainActivity.this);
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ll.setOrientation(LinearLayout.VERTICAL);//设置朝向
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//初始化TextView
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TextView tv=new TextView(MainActivity.this);
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tv.setText(womanorganStr[arg0]);
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tv.setTextSize(24);//设置字体大小
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tv.setTextColor(MainActivity.this.getResources().getColor(R.color.white));//设置字体颜色
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tv.setGravity(Gravity.LEFT);//靠左
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ll.addView(tv);
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return ll;
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}
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};
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//男单选按钮
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RadioMan.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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ls.setAdapter(ba);//设置男Adapter
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mGLSurfaceView.manOrWoman=true;//更改性别标志位
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mGLSurfaceView.womanorganColor= MyFunction.initWomanColor();//初始化女生颜色
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oldSelect=14;//初始化选择器官
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mGLSurfaceView.selectOrgan=14;//初始化选择器官
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}
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});
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//女单选按钮
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RadioWoman.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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ls.setAdapter(baWoman);//设置女Adapter
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mGLSurfaceView.manOrWoman=false;//更改性别标志位
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mGLSurfaceView.tempmanOrganColor= MyFunction.initManColor();//初始化男生颜色
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oldSelect=14;//初始化选择器官
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mGLSurfaceView.selectOrgan=14;//初始化选择器官
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}
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});
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//更改菜单界面的方法
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ls.setAdapter(ba);
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//设置选项被单击的监听器
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ls.setOnItemClickListener(
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new AdapterView.OnItemClickListener()
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{
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@Override
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public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
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long arg3) {//重写选项被单击事件的处理方法
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mGLSurfaceView.addOrDec=true;//设置循环标志位
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if(oldSelect>=0&&oldSelect<=13)
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{
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mGLSurfaceView.tempbrightBreath[oldSelect]=1.0f;//将上一器官的呼吸系数初始化为1
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mGLSurfaceView.tempmanOrganColor[oldSelect]=Constant.organColor[oldSelect];//将原颜色给男器官
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mGLSurfaceView.womanorganColor[oldSelect]=Constant.womanorganColor[oldSelect];//将原颜色给女器官
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}
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setColor(arg2);//上红色
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setSelectOrgan(arg2);//更改选中器官
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oldSelect=arg2;//记录上一次选择的值
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}
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}
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);
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}
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//设置颜色
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public void setColor(int select)
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{
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if(mGLSurfaceView.manOrWoman){
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mGLSurfaceView.tempmanOrganColor[select]=colorRed;
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}else
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{
161+
mGLSurfaceView.womanorganColor[select]=colorRed;
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}
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}
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//设置选中器官
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public void setSelectOrgan(int select)
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{
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mGLSurfaceView.selectOrgan=select;
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}
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@Override
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protected void onResume() {
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super.onResume();
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mGLSurfaceView.onResume();
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}
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@Override
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protected void onPause() {
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super.onPause();
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mGLSurfaceView.onPause();
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}
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}

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