初次提交
This commit is contained in:
@@ -0,0 +1,7 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<classpath>
|
||||
<classpathentry kind="src" path="src"/>
|
||||
<classpathentry kind="src" path="gen"/>
|
||||
<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
|
||||
<classpathentry kind="output" path="bin"/>
|
||||
</classpath>
|
||||
@@ -0,0 +1,33 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<projectDescription>
|
||||
<name>Sample8_4</name>
|
||||
<comment></comment>
|
||||
<projects>
|
||||
</projects>
|
||||
<buildSpec>
|
||||
<buildCommand>
|
||||
<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
|
||||
<arguments>
|
||||
</arguments>
|
||||
</buildCommand>
|
||||
<buildCommand>
|
||||
<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
|
||||
<arguments>
|
||||
</arguments>
|
||||
</buildCommand>
|
||||
<buildCommand>
|
||||
<name>org.eclipse.jdt.core.javabuilder</name>
|
||||
<arguments>
|
||||
</arguments>
|
||||
</buildCommand>
|
||||
<buildCommand>
|
||||
<name>com.android.ide.eclipse.adt.ApkBuilder</name>
|
||||
<arguments>
|
||||
</arguments>
|
||||
</buildCommand>
|
||||
</buildSpec>
|
||||
<natures>
|
||||
<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
|
||||
<nature>org.eclipse.jdt.core.javanature</nature>
|
||||
</natures>
|
||||
</projectDescription>
|
||||
@@ -0,0 +1,12 @@
|
||||
#Thu Nov 17 19:00:40 CST 2011
|
||||
eclipse.preferences.version=1
|
||||
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
|
||||
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
|
||||
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
|
||||
org.eclipse.jdt.core.compiler.compliance=1.6
|
||||
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
|
||||
org.eclipse.jdt.core.compiler.debug.localVariable=generate
|
||||
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
|
||||
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
|
||||
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
|
||||
org.eclipse.jdt.core.compiler.source=1.6
|
||||
@@ -0,0 +1,18 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
package="com.bn.Sample8_4"
|
||||
android:versionCode="1"
|
||||
android:versionName="1.0">
|
||||
<uses-sdk android:minSdkVersion="8" />
|
||||
|
||||
<application android:icon="@drawable/icon" android:label="@string/app_name">
|
||||
<activity android:name=".MyActivity"
|
||||
android:label="@string/app_name">
|
||||
<intent-filter>
|
||||
<action android:name="android.intent.action.MAIN" />
|
||||
<category android:name="android.intent.category.LAUNCHER" />
|
||||
</intent-filter>
|
||||
</activity>
|
||||
|
||||
</application>
|
||||
</manifest>
|
||||
@@ -0,0 +1,7 @@
|
||||
precision mediump float;
|
||||
varying vec4 vaColor; //接收从顶点着色器过来的参数
|
||||
void main()
|
||||
{
|
||||
vec4 finalColor =vaColor;
|
||||
gl_FragColor = finalColor;//给此片元颜色值
|
||||
}
|
||||
@@ -0,0 +1,8 @@
|
||||
precision mediump float;
|
||||
varying vec2 vTextureCoord;//接收从顶点着色器过来的参数
|
||||
uniform sampler2D sTexture;//纹理内容数据
|
||||
void main()
|
||||
{
|
||||
//给此片元从纹理中采样出颜色值
|
||||
gl_FragColor = texture2D(sTexture, vTextureCoord);
|
||||
}
|
||||
@@ -0,0 +1,9 @@
|
||||
uniform mat4 uMVPMatrix; //总变换矩阵
|
||||
attribute vec3 aPosition; //顶点位置
|
||||
attribute vec4 aColor; //顶点颜色
|
||||
varying vec4 vaColor; //用于传递给片元着色器的变量
|
||||
void main()
|
||||
{
|
||||
gl_Position = uMVPMatrix * vec4(aPosition,1); //根据总变换矩阵计算此次绘制此顶点位置
|
||||
vaColor = aColor;//将接收的颜色传递给片元着色器
|
||||
}
|
||||
@@ -0,0 +1,9 @@
|
||||
uniform mat4 uMVPMatrix; //总变换矩阵
|
||||
attribute vec3 aPosition; //顶点位置
|
||||
attribute vec2 aTexCoor; //顶点纹理坐标
|
||||
varying vec2 vTextureCoord; //用于传递给片元着色器的变量
|
||||
void main()
|
||||
{
|
||||
gl_Position = uMVPMatrix * vec4(aPosition,1); //根据总变换矩阵计算此次绘制此顶点位置
|
||||
vTextureCoord = aTexCoor;//将接收的纹理坐标传递给片元着色器
|
||||
}
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
@@ -0,0 +1,11 @@
|
||||
# This file is automatically generated by Android Tools.
|
||||
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
|
||||
#
|
||||
# This file must be checked in Version Control Systems.
|
||||
#
|
||||
# To customize properties used by the Ant build system use,
|
||||
# "build.properties", and override values to adapt the script to your
|
||||
# project structure.
|
||||
|
||||
# Project target.
|
||||
target=android-8
|
||||
@@ -0,0 +1,31 @@
|
||||
/* AUTO-GENERATED FILE. DO NOT MODIFY.
|
||||
*
|
||||
* This class was automatically generated by the
|
||||
* aapt tool from the resource data it found. It
|
||||
* should not be modified by hand.
|
||||
*/
|
||||
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
public final class R {
|
||||
public static final class attr {
|
||||
}
|
||||
public static final class drawable {
|
||||
public static final int android_robot0=0x7f020000;
|
||||
public static final int icon=0x7f020001;
|
||||
}
|
||||
public static final class id {
|
||||
public static final int RadioButton01=0x7f050003;
|
||||
public static final int RadioButton02=0x7f050004;
|
||||
public static final int RadioGroup01=0x7f050001;
|
||||
public static final int main_liner=0x7f050000;
|
||||
public static final int textView1=0x7f050002;
|
||||
}
|
||||
public static final class layout {
|
||||
public static final int main=0x7f030000;
|
||||
}
|
||||
public static final class string {
|
||||
public static final int app_name=0x7f040001;
|
||||
public static final int hello=0x7f040000;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
-optimizationpasses 5
|
||||
-dontusemixedcaseclassnames
|
||||
-dontskipnonpubliclibraryclasses
|
||||
-dontpreverify
|
||||
-verbose
|
||||
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
|
||||
|
||||
-keep public class * extends android.app.Activity
|
||||
-keep public class * extends android.app.Application
|
||||
-keep public class * extends android.app.Service
|
||||
-keep public class * extends android.content.BroadcastReceiver
|
||||
-keep public class * extends android.content.ContentProvider
|
||||
-keep public class * extends android.app.backup.BackupAgentHelper
|
||||
-keep public class * extends android.preference.Preference
|
||||
-keep public class com.android.vending.licensing.ILicensingService
|
||||
|
||||
-keepclasseswithmembernames class * {
|
||||
native <methods>;
|
||||
}
|
||||
|
||||
-keepclasseswithmembers class * {
|
||||
public <init>(android.content.Context, android.util.AttributeSet);
|
||||
}
|
||||
|
||||
-keepclasseswithmembers class * {
|
||||
public <init>(android.content.Context, android.util.AttributeSet, int);
|
||||
}
|
||||
|
||||
-keepclassmembers class * extends android.app.Activity {
|
||||
public void *(android.view.View);
|
||||
}
|
||||
|
||||
-keepclassmembers enum * {
|
||||
public static **[] values();
|
||||
public static ** valueOf(java.lang.String);
|
||||
}
|
||||
|
||||
-keep class * implements android.os.Parcelable {
|
||||
public static final android.os.Parcelable$Creator *;
|
||||
}
|
||||
Binary file not shown.
Binary file not shown.
|
After Width: | Height: | Size: 13 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 4.0 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 1.7 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 2.5 KiB |
@@ -0,0 +1,34 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
android:orientation="vertical"
|
||||
android:layout_width="fill_parent"
|
||||
android:layout_height="fill_parent"
|
||||
android:id="@+id/main_liner"
|
||||
>
|
||||
<RadioGroup
|
||||
android:id="@+id/RadioGroup01"
|
||||
android:orientation="horizontal"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content">
|
||||
<TextView
|
||||
android:text="填充方式："
|
||||
android:id="@+id/textView1"
|
||||
android:textSize="16dip"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content">
|
||||
</TextView>
|
||||
<RadioButton
|
||||
android:text="面填充"
|
||||
android:id="@+id/RadioButton01"
|
||||
android:checked="true"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content">
|
||||
</RadioButton>
|
||||
<RadioButton
|
||||
android:text="线填充"
|
||||
android:id="@+id/RadioButton02"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content">
|
||||
</RadioButton>
|
||||
</RadioGroup>
|
||||
</LinearLayout>
|
||||
@@ -0,0 +1,5 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<resources>
|
||||
<string name="hello">Hello World, Sample9_1Activity!</string>
|
||||
<string name="app_name">Sample8_4</string>
|
||||
</resources>
|
||||
@@ -0,0 +1,182 @@
|
||||
package com.bn.Sample8_4;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.ByteOrder;
|
||||
import java.nio.FloatBuffer;
|
||||
import android.opengl.Matrix;
|
||||
|
||||
//存储系统矩阵状态的类
|
||||
public class MatrixState
|
||||
{
|
||||
private static float[] mProjMatrix = new float[16];//4x4矩阵 投影用
|
||||
private static float[] mVMatrix = new float[16];//摄像机位置朝向9参数矩阵
|
||||
private static float[] currMatrix;//当前变换矩阵
|
||||
public static float[] lightLocation=new float[]{0,0,0};//定位光光源位置
|
||||
public static FloatBuffer cameraFB;
|
||||
public static FloatBuffer lightPositionFB;
|
||||
|
||||
//保护变换矩阵的栈
|
||||
static float[][] mStack=new float[10][16];
|
||||
static int stackTop=-1;
|
||||
|
||||
public static void setInitStack()//获取不变换初始矩阵
|
||||
{
|
||||
currMatrix=new float[16];
|
||||
Matrix.setRotateM(currMatrix, 0, 0, 1, 0, 0);
|
||||
}
|
||||
|
||||
public static void pushMatrix()//保护变换矩阵
|
||||
{
|
||||
stackTop++;
|
||||
for(int i=0;i<16;i++)
|
||||
{
|
||||
mStack[stackTop][i]=currMatrix[i];
|
||||
}
|
||||
}
|
||||
|
||||
public static void popMatrix()//恢复变换矩阵
|
||||
{
|
||||
for(int i=0;i<16;i++)
|
||||
{
|
||||
currMatrix[i]=mStack[stackTop][i];
|
||||
}
|
||||
stackTop--;
|
||||
}
|
||||
|
||||
public static void translate(float x,float y,float z)//设置沿xyz轴移动
|
||||
{
|
||||
Matrix.translateM(currMatrix, 0, x, y, z);
|
||||
}
|
||||
|
||||
public static void rotate(float angle,float x,float y,float z)//设置绕xyz轴移动
|
||||
{
|
||||
Matrix.rotateM(currMatrix,0,angle,x,y,z);
|
||||
}
|
||||
|
||||
public static void scale(float x,float y,float z)
|
||||
{
|
||||
Matrix.scaleM(currMatrix,0, x, y, z);
|
||||
}
|
||||
|
||||
//插入自带矩阵
|
||||
public static void matrix(float[] self)
|
||||
{
|
||||
float[] result=new float[16];
|
||||
Matrix.multiplyMM(result,0,currMatrix,0,self,0);
|
||||
currMatrix=result;
|
||||
}
|
||||
|
||||
|
||||
//设置摄像机
|
||||
static ByteBuffer llbb= ByteBuffer.allocateDirect(3*4);
|
||||
static float[] cameraLocation=new float[3];//摄像机位置
|
||||
public static void setCamera
|
||||
(
|
||||
float cx, //摄像机位置x
|
||||
float cy, //摄像机位置y
|
||||
float cz, //摄像机位置z
|
||||
float tx, //摄像机目标点x
|
||||
float ty, //摄像机目标点y
|
||||
float tz, //摄像机目标点z
|
||||
float upx, //摄像机UP向量X分量
|
||||
float upy, //摄像机UP向量Y分量
|
||||
float upz //摄像机UP向量Z分量
|
||||
)
|
||||
{
|
||||
Matrix.setLookAtM
|
||||
(
|
||||
mVMatrix,
|
||||
0,
|
||||
cx,
|
||||
cy,
|
||||
cz,
|
||||
tx,
|
||||
ty,
|
||||
tz,
|
||||
upx,
|
||||
upy,
|
||||
upz
|
||||
);
|
||||
|
||||
cameraLocation[0]=cx;
|
||||
cameraLocation[1]=cy;
|
||||
cameraLocation[2]=cz;
|
||||
|
||||
llbb.clear();
|
||||
llbb.order(ByteOrder.nativeOrder());//设置字节顺序
|
||||
cameraFB=llbb.asFloatBuffer();
|
||||
cameraFB.put(cameraLocation);
|
||||
cameraFB.position(0);
|
||||
}
|
||||
|
||||
//设置透视投影参数
|
||||
public static void setProjectFrustum
|
||||
(
|
||||
float left, //near面的left
|
||||
float right, //near面的right
|
||||
float bottom, //near面的bottom
|
||||
float top, //near面的top
|
||||
float near, //near面距离
|
||||
float far //far面距离
|
||||
)
|
||||
{
|
||||
Matrix.frustumM(mProjMatrix, 0, left, right, bottom, top, near, far);
|
||||
}
|
||||
|
||||
//设置正交投影参数
|
||||
public static void setProjectOrtho
|
||||
(
|
||||
float left, //near面的left
|
||||
float right, //near面的right
|
||||
float bottom, //near面的bottom
|
||||
float top, //near面的top
|
||||
float near, //near面距离
|
||||
float far //far面距离
|
||||
)
|
||||
{
|
||||
Matrix.orthoM(mProjMatrix, 0, left, right, bottom, top, near, far);
|
||||
}
|
||||
//获取具体物体的总变换矩阵
|
||||
static float[] mMVPMatrix=new float[16];
|
||||
public static float[] getFinalMatrix()
|
||||
{
|
||||
Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, currMatrix, 0);
|
||||
Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);
|
||||
return mMVPMatrix;
|
||||
}
|
||||
|
||||
//获取具体物体的变换矩阵
|
||||
public static float[] getMMatrix()
|
||||
{
|
||||
return currMatrix;
|
||||
}
|
||||
|
||||
//获取投影矩阵
|
||||
public static float[] getProjMatrix()
|
||||
{
|
||||
return mProjMatrix;
|
||||
}
|
||||
|
||||
//获取摄像机朝向的矩阵
|
||||
public static float[] getCaMatrix()
|
||||
{
|
||||
return mVMatrix;
|
||||
}
|
||||
|
||||
|
||||
|
||||
//设置灯光位置的方法
|
||||
static ByteBuffer llbbL = ByteBuffer.allocateDirect(3*4);
|
||||
public static void setLightLocation(float x,float y,float z)
|
||||
{
|
||||
llbbL.clear();
|
||||
|
||||
lightLocation[0]=x;
|
||||
lightLocation[1]=y;
|
||||
lightLocation[2]=z;
|
||||
|
||||
llbbL.order(ByteOrder.nativeOrder());//设置字节顺序
|
||||
lightPositionFB=llbbL.asFloatBuffer();
|
||||
lightPositionFB.put(lightLocation);
|
||||
lightPositionFB.position(0);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,89 @@
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
import android.app.Activity;
|
||||
import android.content.pm.ActivityInfo;
|
||||
import android.os.Bundle;
|
||||
import android.view.KeyEvent;
|
||||
import android.view.Window;
|
||||
import android.view.WindowManager;
|
||||
import android.widget.CompoundButton;
|
||||
import android.widget.LinearLayout;
|
||||
import android.widget.RadioButton;
|
||||
import android.widget.CompoundButton.OnCheckedChangeListener;
|
||||
|
||||
|
||||
public class MyActivity extends Activity {
|
||||
MySurfaceView mySurfaceView;
|
||||
@Override
|
||||
public void onCreate(Bundle savedInstanceState) {
|
||||
super.onCreate(savedInstanceState);
|
||||
//设置为全屏
|
||||
requestWindowFeature(Window.FEATURE_NO_TITLE);
|
||||
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN ,
|
||||
WindowManager.LayoutParams.FLAG_FULLSCREEN);
|
||||
//设置为竖屏模式
|
||||
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
|
||||
//切换到主界面
|
||||
setContentView(R.layout.main);
|
||||
//初始化GLSurfaceView
|
||||
mySurfaceView = new MySurfaceView(this);
|
||||
mySurfaceView.requestFocus();//获取焦点
|
||||
mySurfaceView.setFocusableInTouchMode(true);//设置为可触控
|
||||
//将自定义的GLSurfaceView添加到外层LinearLayout中
|
||||
LinearLayout ll=(LinearLayout)findViewById(R.id.main_liner);
|
||||
ll.addView(mySurfaceView);
|
||||
|
||||
|
||||
//为RadioButton添加监听器及SxT选择代码
|
||||
RadioButton rab=(RadioButton)findViewById(R.id.RadioButton01);
|
||||
rab.setOnCheckedChangeListener(
|
||||
new OnCheckedChangeListener()
|
||||
{
|
||||
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked)
|
||||
{
|
||||
//面填充
|
||||
if(isChecked)
|
||||
{
|
||||
mySurfaceView.drawWhatFlag=true;
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
rab=(RadioButton)findViewById(R.id.RadioButton02);
|
||||
|
||||
rab.setOnCheckedChangeListener(
|
||||
new OnCheckedChangeListener()
|
||||
{
|
||||
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked)
|
||||
{
|
||||
//线填充
|
||||
if(isChecked)
|
||||
{
|
||||
mySurfaceView.drawWhatFlag=false;
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
@Override
|
||||
protected void onResume() {
|
||||
super.onResume();
|
||||
mySurfaceView.onResume();
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onPause() {
|
||||
super.onPause();
|
||||
mySurfaceView.onPause();
|
||||
}
|
||||
public boolean onKeyDown(int keyCode,KeyEvent e)
|
||||
{
|
||||
switch(keyCode)
|
||||
{
|
||||
case 4:
|
||||
System.exit(0);
|
||||
break;
|
||||
}
|
||||
return true;
|
||||
};
|
||||
}
|
||||
@@ -0,0 +1,162 @@
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import android.opengl.GLSurfaceView;
|
||||
import android.opengl.GLUtils;
|
||||
import android.opengl.GLES20;
|
||||
import android.view.MotionEvent;
|
||||
import javax.microedition.khronos.egl.EGLConfig;
|
||||
import javax.microedition.khronos.opengles.GL10;
|
||||
import android.content.Context;
|
||||
import android.graphics.Bitmap;
|
||||
import android.graphics.BitmapFactory;
|
||||
|
||||
class MySurfaceView extends GLSurfaceView {
|
||||
|
||||
private final float TOUCH_SCALE_FACTOR = 180.0f/320;//角度缩放比例
|
||||
private float mPreviousY;//上次的触控位置Y坐标
|
||||
private float mPreviousX;//上次的触控位置X坐标
|
||||
|
||||
private SceneRenderer mRenderer;//场景渲染器
|
||||
int textureId; //系统分配的纹理id
|
||||
|
||||
boolean drawWhatFlag=true; //绘制线填充方式的标志位
|
||||
|
||||
public MySurfaceView(Context context) {
|
||||
super(context);
|
||||
this.setEGLContextClientVersion(2); //设置使用OPENGL ES2.0
|
||||
mRenderer = new SceneRenderer(); //创建场景渲染器
|
||||
setRenderer(mRenderer); //设置渲染器
|
||||
setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);//设置渲染模式为主动渲染
|
||||
}
|
||||
|
||||
//触摸事件回调方法
|
||||
@Override
|
||||
public boolean onTouchEvent(MotionEvent e) {
|
||||
float y = e.getY();
|
||||
float x = e.getX();
|
||||
switch (e.getAction()) {
|
||||
case MotionEvent.ACTION_MOVE:
|
||||
float dy = y - mPreviousY;//计算触控笔Y位移
|
||||
float dx = x - mPreviousX;//计算触控笔X位移
|
||||
mRenderer.spring.yAngle += dx * TOUCH_SCALE_FACTOR;//设置绕y轴旋转角度
|
||||
mRenderer.spring.zAngle+= dy * TOUCH_SCALE_FACTOR;//设置绕z轴旋转角度
|
||||
|
||||
mRenderer.springl.yAngle += dx * TOUCH_SCALE_FACTOR;//设置绕y轴旋转角度
|
||||
mRenderer.springl.zAngle+= dy * TOUCH_SCALE_FACTOR;//设置绕z轴旋转角度
|
||||
}
|
||||
mPreviousY = y;//记录触控笔位置
|
||||
mPreviousX = x;//记录触控笔位置
|
||||
return true;
|
||||
}
|
||||
|
||||
private class SceneRenderer implements GLSurfaceView.Renderer
|
||||
{
|
||||
|
||||
Spring spring;
|
||||
SpringL springl;
|
||||
|
||||
public void onDrawFrame(GL10 gl)
|
||||
{
|
||||
//清除深度缓冲与颜色缓冲
|
||||
GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
|
||||
|
||||
//保护现场
|
||||
MatrixState.pushMatrix();
|
||||
MatrixState.translate(0, 0, -10);
|
||||
|
||||
if(drawWhatFlag)
|
||||
{
|
||||
spring.drawSelf(textureId);
|
||||
}
|
||||
else
|
||||
{
|
||||
springl.drawSelf();
|
||||
}
|
||||
|
||||
MatrixState.popMatrix();
|
||||
|
||||
}
|
||||
|
||||
public void onSurfaceChanged(GL10 gl, int width, int height) {
|
||||
//设置视窗大小及位置
|
||||
GLES20.glViewport(0, 0, width, height);
|
||||
//计算GLSurfaceView的宽高比
|
||||
float ratio= (float) width / height;
|
||||
//调用此方法计算产生透视投影矩阵
|
||||
MatrixState.setProjectFrustum(-ratio, ratio, -1, 1, 4f, 100);
|
||||
//调用此方法产生摄像机9参数位置矩阵
|
||||
MatrixState.setCamera(0,0,8.0f,0f,0f,0f,0f,1.0f,0.0f);
|
||||
}
|
||||
|
||||
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
|
||||
//设置屏幕背景色RGBA
|
||||
GLES20.glClearColor(0.0f,0.0f,0.0f, 1.0f);
|
||||
//启用深度测试
|
||||
GLES20.glEnable(GLES20.GL_DEPTH_TEST);
|
||||
//设置为打开背面剪裁
|
||||
GLES20.glEnable(GLES20.GL_CULL_FACE);
|
||||
//初始化变换矩阵
|
||||
MatrixState.setInitStack();
|
||||
//加载纹理
|
||||
textureId=initTexture(R.drawable.android_robot0);
|
||||
|
||||
//创建螺旋管对象
|
||||
spring = new Spring(MySurfaceView.this,1.8f,1.0f,7f,3.3f,10,80);
|
||||
//创建螺旋管骨架对象
|
||||
springl= new SpringL(MySurfaceView.this,1.8f,1.0f,7f,3.3f,10,80);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
public int initTexture(int drawableId)//textureId
|
||||
{
|
||||
//生成纹理ID
|
||||
int[] textures = new int[1];
|
||||
GLES20.glGenTextures
|
||||
(
|
||||
1, //产生的纹理id的数量
|
||||
textures, //纹理id的数组
|
||||
0 //偏移量
|
||||
);
|
||||
int textureId=textures[0];
|
||||
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId);
|
||||
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER,GLES20.GL_NEAREST);
|
||||
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,GLES20.GL_TEXTURE_MAG_FILTER,GLES20.GL_LINEAR);
|
||||
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S,GLES20.GL_CLAMP_TO_EDGE);
|
||||
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,GLES20.GL_CLAMP_TO_EDGE);
|
||||
|
||||
//通过输入流加载图片===============begin===================
|
||||
InputStream is = this.getResources().openRawResource(drawableId);
|
||||
Bitmap bitmapTmp;
|
||||
try
|
||||
{
|
||||
bitmapTmp = BitmapFactory.decodeStream(is);
|
||||
}
|
||||
finally
|
||||
{
|
||||
try
|
||||
{
|
||||
is.close();
|
||||
}
|
||||
catch(IOException e)
|
||||
{
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
//通过输入流加载图片===============end=====================
|
||||
|
||||
//实际加载纹理
|
||||
GLUtils.texImage2D
|
||||
(
|
||||
GLES20.GL_TEXTURE_2D, //纹理类型，在OpenGL ES中必须为GL10.GL_TEXTURE_2D
|
||||
0, //纹理的层次，0表示基本图像层，可以理解为直接贴图
|
||||
bitmapTmp, //纹理图像
|
||||
0 //纹理边框尺寸
|
||||
);
|
||||
bitmapTmp.recycle(); //纹理加载成功后释放图片
|
||||
|
||||
return textureId;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,126 @@
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.InputStream;
|
||||
|
||||
import android.content.res.Resources;
|
||||
import android.opengl.GLES20;
|
||||
import android.util.Log;
|
||||
|
||||
//加载顶点Shader与片元Shader的工具类
|
||||
public class ShaderUtil
|
||||
{
|
||||
//加载制定shader的方法
|
||||
public static int loadShader
|
||||
(
|
||||
int shaderType, //shader的类型 GLES20.GL_VERTEX_SHADER GLES20.GL_FRAGMENT_SHADER
|
||||
String source //shader的脚本字符串
|
||||
)
|
||||
{
|
||||
//创建一个新shader
|
||||
int shader = GLES20.glCreateShader(shaderType);
|
||||
//若创建成功则加载shader
|
||||
if (shader != 0)
|
||||
{
|
||||
//加载shader的源代码
|
||||
GLES20.glShaderSource(shader, source);
|
||||
//编译shader
|
||||
GLES20.glCompileShader(shader);
|
||||
//存放编译成功shader数量的数组
|
||||
int[] compiled = new int[1];
|
||||
//获取Shader的编译情况
|
||||
GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0);
|
||||
if (compiled[0] == 0)
|
||||
{//若编译失败则显示错误日志并删除此shader
|
||||
Log.e("ES20_ERROR", "Could not compile shader " + shaderType + ":");
|
||||
Log.e("ES20_ERROR", GLES20.glGetShaderInfoLog(shader));
|
||||
GLES20.glDeleteShader(shader);
|
||||
shader = 0;
|
||||
}
|
||||
}
|
||||
return shader;
|
||||
}
|
||||
|
||||
//创建shader程序的方法
|
||||
public static int createProgram(String vertexSource, String fragmentSource)
|
||||
{
|
||||
//加载顶点着色器
|
||||
int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexSource);
|
||||
if (vertexShader == 0)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
//加载片元着色器
|
||||
int pixelShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
|
||||
if (pixelShader == 0)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
//创建程序
|
||||
int program = GLES20.glCreateProgram();
|
||||
//若程序创建成功则向程序中加入顶点着色器与片元着色器
|
||||
if (program != 0)
|
||||
{
|
||||
//向程序中加入顶点着色器
|
||||
GLES20.glAttachShader(program, vertexShader);
|
||||
checkGlError("glAttachShader");
|
||||
//向程序中加入片元着色器
|
||||
GLES20.glAttachShader(program, pixelShader);
|
||||
checkGlError("glAttachShader");
|
||||
//链接程序
|
||||
GLES20.glLinkProgram(program);
|
||||
//存放链接成功program数量的数组
|
||||
int[] linkStatus = new int[1];
|
||||
//获取program的链接情况
|
||||
GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
|
||||
//若链接失败则报错并删除程序
|
||||
if (linkStatus[0] != GLES20.GL_TRUE)
|
||||
{
|
||||
Log.e("ES20_ERROR", "Could not link program: ");
|
||||
Log.e("ES20_ERROR", GLES20.glGetProgramInfoLog(program));
|
||||
GLES20.glDeleteProgram(program);
|
||||
program = 0;
|
||||
}
|
||||
}
|
||||
return program;
|
||||
}
|
||||
|
||||
//检查每一步操作是否有错误的方法
|
||||
public static void checkGlError(String op)
|
||||
{
|
||||
int error;
|
||||
while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR)
|
||||
{
|
||||
Log.e("ES20_ERROR", op + ": glError " + error);
|
||||
throw new RuntimeException(op + ": glError " + error);
|
||||
}
|
||||
}
|
||||
|
||||
//从sh脚本中加载shader内容的方法
|
||||
public static String loadFromAssetsFile(String fname,Resources r)
|
||||
{
|
||||
String result=null;
|
||||
try
|
||||
{
|
||||
InputStream in=r.getAssets().open(fname);
|
||||
int ch=0;
|
||||
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
||||
while((ch=in.read())!=-1)
|
||||
{
|
||||
baos.write(ch);
|
||||
}
|
||||
byte[] buff=baos.toByteArray();
|
||||
baos.close();
|
||||
in.close();
|
||||
result=new String(buff,"UTF-8");
|
||||
result=result.replaceAll("\\r\\n","\n");
|
||||
}
|
||||
catch(Exception e)
|
||||
{
|
||||
e.printStackTrace();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,221 @@
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
import static com.bn.Sample8_4.ShaderUtil.createProgram;
|
||||
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.ByteOrder;
|
||||
import java.nio.FloatBuffer;
|
||||
import java.util.ArrayList;
|
||||
import android.opengl.GLES20;
|
||||
|
||||
/*
|
||||
* 圆环
|
||||
*/
|
||||
public class Spring
|
||||
{
|
||||
int mProgram;//自定义渲染管线着色器程序id
|
||||
int muMVPMatrixHandle;//总变换矩阵引用
|
||||
int maPositionHandle; //顶点位置属性引用
|
||||
int maTexCoorHandle; //顶点纹理坐标属性引用
|
||||
|
||||
String mVertexShader;//顶点着色器代码脚本
|
||||
String mFragmentShader;//片元着色器代码脚本
|
||||
|
||||
FloatBuffer mVertexBuffer;//顶点坐标数据缓冲
|
||||
FloatBuffer mTexCoorBuffer;//顶点纹理坐标数据缓冲
|
||||
|
||||
int vCount=0;
|
||||
float xAngle=0;//绕x轴旋转的角度
|
||||
float yAngle=0;//绕y轴旋转的角度
|
||||
float zAngle=0;//绕z轴旋转的角度
|
||||
|
||||
float h;
|
||||
|
||||
public Spring(MySurfaceView mv,
|
||||
float rBig, float rSmall,
|
||||
float h, float nCirclef, //高度，圈数
|
||||
int nCol ,int nRow)
|
||||
{
|
||||
this.h=h;
|
||||
//调用初始化顶点数据的initVertexData方法
|
||||
initVertexData(rBig,rSmall,h,nCirclef,nCol,nRow);
|
||||
//调用初始化着色器的intShader方法
|
||||
initShader(mv);
|
||||
}
|
||||
|
||||
//自定义的初始化顶点数据的方法
|
||||
public void initVertexData(
|
||||
float rBig, float rSmall,//螺旋管外径、螺旋管内径
|
||||
float h, float nCirclef, //螺旋管高度，螺旋管圈数
|
||||
int nCol ,int nRow) {//小圆周和大圆周切分的份数
|
||||
float angdegTotal=nCirclef*360.0f;//大圆周总度数
|
||||
float angdegColSpan=360.0f/nCol;//小圆周每份的角度跨度
|
||||
float angdegRowSpan=angdegTotal/nRow;//大圆周每份的角度跨度
|
||||
float A=(rBig-rSmall)/2;//用于旋转的小圆半径
|
||||
float D=rSmall+A;//旋转轨迹形成的大圆周半径
|
||||
vCount=3*nCol*nRow*2;//顶点个数，共有nColumn*nRow*2个三角形，每个三角形都有三个顶点
|
||||
//坐标数据初始化
|
||||
ArrayList<Float> alVertix=new ArrayList<Float>();//原顶点列表（未卷绕）
|
||||
ArrayList<Integer> alFaceIndex=new ArrayList<Integer>();//组织成面的顶点的索引值列表（按逆时针卷绕）
|
||||
//顶点
|
||||
for(float angdegCol=0;Math.ceil(angdegCol)<360+angdegColSpan;angdegCol+=angdegColSpan)
|
||||
{
|
||||
double a=Math.toRadians(angdegCol);//当前小圆周弧度
|
||||
for(float angdegRow=0;Math.ceil(angdegRow)<angdegTotal+angdegRowSpan;angdegRow+=angdegRowSpan)//重复了一列顶点，方便了索引的计算
|
||||
{
|
||||
float yVec=(angdegRow/angdegTotal)*h;//根据旋转角度增加y的值
|
||||
double u=Math.toRadians(angdegRow);//当前大圆周弧度
|
||||
float y=(float) (A*Math.cos(a));
|
||||
float x=(float) ((D+A*Math.sin(a))*Math.sin(u));
|
||||
float z=(float) ((D+A*Math.sin(a))*Math.cos(u));
|
||||
//将计算出来的XYZ坐标加入存放顶点坐标的ArrayList
|
||||
alVertix.add(x); alVertix.add(y+yVec); alVertix.add(z);
|
||||
}
|
||||
}
|
||||
//索引
|
||||
for(int i=0;i<nCol;i++){
|
||||
for(int j=0;j<nRow;j++){
|
||||
int index=i*(nRow+1)+j;//当前索引
|
||||
//卷绕索引
|
||||
alFaceIndex.add(index+1);//下一列---1
|
||||
alFaceIndex.add(index+nRow+1);//下一列---2
|
||||
alFaceIndex.add(index+nRow+2);//下一行下一列---3
|
||||
|
||||
alFaceIndex.add(index+1);//下一列---1
|
||||
alFaceIndex.add(index);//当前---0
|
||||
alFaceIndex.add(index+nRow+1);//下一列---2
|
||||
}
|
||||
}
|
||||
//计算卷绕顶点和平均法向量
|
||||
float[] vertices=new float[vCount*3];
|
||||
cullVertex(alVertix, alFaceIndex, vertices);
|
||||
|
||||
//纹理
|
||||
ArrayList<Float> alST=new ArrayList<Float>();//原纹理坐标列表（未卷绕）
|
||||
for(float angdegCol=0;Math.ceil(angdegCol)<360+angdegColSpan;angdegCol+=angdegColSpan)
|
||||
{
|
||||
float t=angdegCol/360;//t坐标
|
||||
for(float angdegRow=0;Math.ceil(angdegRow)<angdegTotal+angdegRowSpan;angdegRow+=angdegRowSpan)//重复了一列纹理坐标，以索引的计算
|
||||
{
|
||||
float s=angdegRow/angdegTotal;//s坐标
|
||||
//将计算出来的ST坐标加入存放顶点坐标的ArrayList
|
||||
alST.add(s); alST.add(t);
|
||||
}
|
||||
}
|
||||
//计算卷绕后纹理坐标
|
||||
float[] textures=cullTexCoor(alST, alFaceIndex);
|
||||
|
||||
//顶点坐标数据初始化
|
||||
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length*4);//创建顶点坐标数据缓冲
|
||||
vbb.order(ByteOrder.nativeOrder());//设置字节顺序
|
||||
mVertexBuffer = vbb.asFloatBuffer();//转换为float型缓冲
|
||||
mVertexBuffer.put(vertices);//向缓冲区中放入顶点坐标数据
|
||||
mVertexBuffer.position(0);//设置缓冲区起始位置
|
||||
|
||||
//纹理坐标数据初始化
|
||||
ByteBuffer tbb = ByteBuffer.allocateDirect(textures.length*4);//创建顶点纹理数据缓冲
|
||||
tbb.order(ByteOrder.nativeOrder());//设置字节顺序
|
||||
mTexCoorBuffer = tbb.asFloatBuffer();//转换为float型缓冲
|
||||
mTexCoorBuffer.put(textures);//向缓冲区中放入顶点纹理数据
|
||||
mTexCoorBuffer.position(0);//设置缓冲区起始位置
|
||||
}
|
||||
|
||||
//通过原顶点和面的索引值，得到用顶点卷绕的数组
|
||||
public static void cullVertex(
|
||||
ArrayList<Float> alv,//原顶点列表（未卷绕）
|
||||
ArrayList<Integer> alFaceIndex,//组织成面的顶点的索引值列表（按逆时针卷绕）
|
||||
float[] vertices//用顶点卷绕的数组（顶点结果放入该数组中，数组长度应等于索引列表长度的3倍）
|
||||
){
|
||||
//生成顶点的数组
|
||||
int vCount=0;
|
||||
for(int i:alFaceIndex){
|
||||
vertices[vCount++]=alv.get(3*i);
|
||||
vertices[vCount++]=alv.get(3*i+1);
|
||||
vertices[vCount++]=alv.get(3*i+2);
|
||||
}
|
||||
}
|
||||
//根据原纹理坐标和索引，计算卷绕后的纹理的方法
|
||||
public static float[] cullTexCoor(
|
||||
ArrayList<Float> alST,//原纹理坐标列表（未卷绕）
|
||||
ArrayList<Integer> alTexIndex//组织成面的纹理坐标的索引值列表（按逆时针卷绕）
|
||||
)
|
||||
{
|
||||
float[] textures=new float[alTexIndex.size()*2];
|
||||
//生成顶点的数组
|
||||
int stCount=0;
|
||||
for(int i:alTexIndex){
|
||||
textures[stCount++]=alST.get(2*i);
|
||||
textures[stCount++]=alST.get(2*i+1);
|
||||
}
|
||||
return textures;
|
||||
}
|
||||
|
||||
//自定义初始化着色器initShader方法
|
||||
public void initShader(MySurfaceView mv)
|
||||
{
|
||||
//加载顶点着色器的脚本内容
|
||||
mVertexShader=ShaderUtil.loadFromAssetsFile("vertex_tex.sh", mv.getResources());
|
||||
//加载片元着色器的脚本内容
|
||||
mFragmentShader=ShaderUtil.loadFromAssetsFile("frag_tex.sh", mv.getResources());
|
||||
//基于顶点着色器与片元着色器创建程序
|
||||
mProgram = createProgram(mVertexShader, mFragmentShader);
|
||||
//获取程序中顶点位置属性引用id
|
||||
maPositionHandle = GLES20.glGetAttribLocation(mProgram, "aPosition");
|
||||
//获取程序中顶点纹理坐标属性引用id
|
||||
maTexCoorHandle= GLES20.glGetAttribLocation(mProgram, "aTexCoor");
|
||||
//获取程序中总变换矩阵引用id
|
||||
muMVPMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix");
|
||||
}
|
||||
|
||||
public void drawSelf(int texId)
|
||||
{
|
||||
MatrixState.rotate(xAngle, 1, 0, 0);
|
||||
MatrixState.rotate(yAngle, 0, 1, 0);
|
||||
MatrixState.rotate(zAngle, 0, 0, 1);
|
||||
|
||||
MatrixState.pushMatrix();
|
||||
MatrixState.translate(0, -h/2, 0);
|
||||
|
||||
//制定使用某套shader程序
|
||||
GLES20.glUseProgram(mProgram);
|
||||
|
||||
//将最终变换矩阵传入shader程序
|
||||
GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, MatrixState.getFinalMatrix(), 0);
|
||||
|
||||
//传送顶点位置数据
|
||||
GLES20.glVertexAttribPointer
|
||||
(
|
||||
maPositionHandle,
|
||||
3,
|
||||
GLES20.GL_FLOAT,
|
||||
false,
|
||||
3*4,
|
||||
mVertexBuffer
|
||||
);
|
||||
//传送顶点纹理坐标数据
|
||||
GLES20.glVertexAttribPointer
|
||||
(
|
||||
maTexCoorHandle,
|
||||
2,
|
||||
GLES20.GL_FLOAT,
|
||||
false,
|
||||
2*4,
|
||||
mTexCoorBuffer
|
||||
);
|
||||
|
||||
//启用顶点位置数据
|
||||
GLES20.glEnableVertexAttribArray(maPositionHandle);
|
||||
//启用顶点纹理数据
|
||||
GLES20.glEnableVertexAttribArray(maTexCoorHandle);
|
||||
|
||||
//绑定纹理
|
||||
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
|
||||
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texId);
|
||||
|
||||
//绘制纹理矩形
|
||||
GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, vCount);
|
||||
|
||||
MatrixState.popMatrix();
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,199 @@
|
||||
package com.bn.Sample8_4;
|
||||
|
||||
import static com.bn.Sample8_4.ShaderUtil.createProgram;
|
||||
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.ByteOrder;
|
||||
import java.nio.FloatBuffer;
|
||||
import java.util.ArrayList;
|
||||
|
||||
import android.opengl.GLES20;
|
||||
|
||||
/*
|
||||
* 圆环骨架类
|
||||
*/
|
||||
public class SpringL
|
||||
{
|
||||
int mProgram;//自定义渲染管线着色器程序id
|
||||
int muMVPMatrixHandle;//总变换矩阵引用
|
||||
int maPositionHandle; //顶点位置属性引用
|
||||
int maColorHandle; //顶点颜色属性引用
|
||||
|
||||
String mVertexShader;//顶点着色器
|
||||
String mFragmentShader;//片元着色器
|
||||
|
||||
FloatBuffer mVertexBuffer;//顶点坐标数据缓冲
|
||||
FloatBuffer mColorBuffer; //顶点颜色数据缓冲
|
||||
|
||||
int vCount=0;
|
||||
float xAngle=0;//绕x轴旋转的角度
|
||||
float yAngle=0;//绕y轴旋转的角度
|
||||
float zAngle=0;//绕z轴旋转的角度
|
||||
float h;
|
||||
|
||||
public SpringL(MySurfaceView mv,
|
||||
float rBig, float rSmall,
|
||||
float h, float nCirclef, //高度，圈数
|
||||
int nCol ,int nRow)
|
||||
{
|
||||
this.h=h;
|
||||
//调用初始化顶点数据的initVertexData方法
|
||||
initVertexData(rBig,rSmall,h,nCirclef,nCol,nRow);
|
||||
//调用初始化着色器的intShader方法
|
||||
initShader(mv);
|
||||
}
|
||||
|
||||
//自定义的初始化顶点数据的方法
|
||||
public void initVertexData(
|
||||
float rBig, float rSmall,//大半径，小半径
|
||||
float h, float nCirclef, //高度，圈数
|
||||
int nCol ,int nRow) {//列数，行数
|
||||
//成员变量初始化
|
||||
float angdegTotal=nCirclef*360.0f;//总度数
|
||||
float angdegColSpan=360.0f/nCol;
|
||||
float angdegRowSpan=angdegTotal/nRow;
|
||||
float A=(rBig-rSmall)/2;//用于旋转的小圆半径
|
||||
float D=rSmall+A;//旋转轨迹形成的大圆周半径
|
||||
vCount=3*nCol*nRow*2;//顶点个数，共有nColumn*nRow*2个三角形，每个三角形都有三个顶点
|
||||
//坐标数据初始化
|
||||
ArrayList<Float> alVertix=new ArrayList<Float>();//原顶点列表（未卷绕）
|
||||
ArrayList<Integer> alFaceIndex=new ArrayList<Integer>();//组织成面的顶点的索引值列表（按逆时针卷绕）
|
||||
|
||||
//顶点
|
||||
for(float angdegCol=0;Math.ceil(angdegCol)<360+angdegColSpan;angdegCol+=angdegColSpan)
|
||||
{
|
||||
double a=Math.toRadians(angdegCol);//当前小圆周弧度
|
||||
for(float angdegRow=0;Math.ceil(angdegRow)<angdegTotal+angdegRowSpan;angdegRow+=angdegRowSpan)//重复了一列顶点，方便了索引的计算
|
||||
{
|
||||
float yVec=(angdegRow/angdegTotal)*h;//根据旋转角度增加y的值
|
||||
double u=Math.toRadians(angdegRow);//当前大圆周弧度
|
||||
float y=(float) (A*Math.cos(a));
|
||||
float x=(float) ((D+A*Math.sin(a))*Math.sin(u));
|
||||
float z=(float) ((D+A*Math.sin(a))*Math.cos(u));
|
||||
//将计算出来的XYZ坐标加入存放顶点坐标的ArrayList
|
||||
alVertix.add(x); alVertix.add(y+yVec); alVertix.add(z);
|
||||
}
|
||||
}
|
||||
//索引
|
||||
for(int i=0;i<nCol;i++){
|
||||
for(int j=0;j<nRow;j++){
|
||||
int index=i*(nRow+1)+j;//当前索引
|
||||
//卷绕索引
|
||||
alFaceIndex.add(index+1);//下一列---1
|
||||
alFaceIndex.add(index+nRow+1);//下一列---2
|
||||
alFaceIndex.add(index+nRow+2);//下一行下一列---3
|
||||
|
||||
alFaceIndex.add(index+1);//下一列---1
|
||||
alFaceIndex.add(index);//当前---0
|
||||
alFaceIndex.add(index+nRow+1);//下一列---2
|
||||
}
|
||||
}
|
||||
//计算卷绕顶点和平均法向量
|
||||
float[] vertices=new float[vCount*3];
|
||||
cullVertex(alVertix, alFaceIndex, vertices);
|
||||
|
||||
//顶点坐标数据初始化
|
||||
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length*4);//创建顶点坐标数据缓冲
|
||||
vbb.order(ByteOrder.nativeOrder());//设置字节顺序
|
||||
mVertexBuffer = vbb.asFloatBuffer();//转换为float型缓冲
|
||||
mVertexBuffer.put(vertices);//向缓冲区中放入顶点坐标数据
|
||||
mVertexBuffer.position(0);//设置缓冲区起始位置
|
||||
|
||||
float[] colors=new float[vCount*4];//顶点颜色数组
|
||||
int Count=0;
|
||||
for(int i=0;i<vCount;i++)
|
||||
{
|
||||
colors[Count++]=1; //r
|
||||
colors[Count++]=1; //g
|
||||
colors[Count++]=1; //b
|
||||
colors[Count++]=1; //a
|
||||
|
||||
}
|
||||
//创建顶点着色数据缓冲
|
||||
ByteBuffer cbb = ByteBuffer.allocateDirect(colors.length*4);
|
||||
cbb.order(ByteOrder.nativeOrder());//设置字节顺序为本地操作系统顺序
|
||||
mColorBuffer = cbb.asFloatBuffer();//转换为Float型缓冲
|
||||
mColorBuffer.put(colors);//向缓冲区中放入顶点着色数据
|
||||
mColorBuffer.position(0);//设置缓冲区起始位置
|
||||
}
|
||||
|
||||
//通过原顶点和面的索引值，得到用顶点卷绕的数组
|
||||
public static void cullVertex(
|
||||
ArrayList<Float> alv,//原顶点列表（未卷绕）
|
||||
ArrayList<Integer> alFaceIndex,//组织成面的顶点的索引值列表（按逆时针卷绕）
|
||||
float[] vertices//用顶点卷绕的数组（顶点结果放入该数组中，数组长度应等于索引列表长度的3倍）
|
||||
){
|
||||
//生成顶点的数组
|
||||
int vCount=0;
|
||||
for(int i:alFaceIndex){
|
||||
vertices[vCount++]=alv.get(3*i);
|
||||
vertices[vCount++]=alv.get(3*i+1);
|
||||
vertices[vCount++]=alv.get(3*i+2);
|
||||
}
|
||||
}
|
||||
//初始化着色器
|
||||
public void initShader(MySurfaceView mv)
|
||||
{
|
||||
//加载顶点着色器的脚本内容
|
||||
mVertexShader=ShaderUtil.loadFromAssetsFile("vertex_color.sh", mv.getResources());
|
||||
//加载片元着色器的脚本内容
|
||||
mFragmentShader=ShaderUtil.loadFromAssetsFile("frag_color.sh", mv.getResources());
|
||||
//基于顶点着色器与片元着色器创建程序
|
||||
mProgram = createProgram(mVertexShader, mFragmentShader);
|
||||
//获取程序中顶点位置属性引用id
|
||||
maPositionHandle = GLES20.glGetAttribLocation(mProgram, "aPosition");
|
||||
//获取程序中顶点颜色属性引用id
|
||||
maColorHandle= GLES20.glGetAttribLocation(mProgram, "aColor");
|
||||
//获取程序中总变换矩阵引用id
|
||||
muMVPMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix");
|
||||
}
|
||||
|
||||
public void drawSelf()
|
||||
{
|
||||
MatrixState.rotate(xAngle, 1, 0, 0);
|
||||
MatrixState.rotate(yAngle, 0, 1, 0);
|
||||
MatrixState.rotate(zAngle, 0, 0, 1);
|
||||
|
||||
MatrixState.pushMatrix();
|
||||
MatrixState.translate(0, -h/2, 0);
|
||||
|
||||
//制定使用某套shader程序
|
||||
GLES20.glUseProgram(mProgram);
|
||||
//将最终变换矩阵传入shader程序
|
||||
GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, MatrixState.getFinalMatrix(), 0);
|
||||
|
||||
//传送顶点位置数据
|
||||
GLES20.glVertexAttribPointer
|
||||
(
|
||||
maPositionHandle,
|
||||
3,
|
||||
GLES20.GL_FLOAT,
|
||||
false,
|
||||
3*4,
|
||||
mVertexBuffer
|
||||
);
|
||||
//传送顶点颜色数据
|
||||
GLES20.glVertexAttribPointer
|
||||
(
|
||||
maColorHandle,
|
||||
4,
|
||||
GLES20.GL_FLOAT,
|
||||
false,
|
||||
4*4,
|
||||
mColorBuffer
|
||||
);
|
||||
|
||||
//启用顶点位置数据
|
||||
GLES20.glEnableVertexAttribArray(maPositionHandle);
|
||||
//启用顶点颜色数据
|
||||
GLES20.glEnableVertexAttribArray(maColorHandle);
|
||||
|
||||
//绘制线条的粗细
|
||||
GLES20.glLineWidth(2);
|
||||
//绘制
|
||||
GLES20.glDrawArrays(GLES20.GL_LINES, 0, vCount);
|
||||
|
||||
MatrixState.popMatrix();
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user