android.opengl.Matrix.frustumM()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中android.opengl.Matrix.frustumM()方法的一些代码示例，展示了Matrix.frustumM()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Matrix.frustumM()方法的具体详情如下：
包路径：android.opengl.Matrix
类名称：Matrix
方法名：frustumM

Matrix.frustumM介绍

暂无

代码示例

代码示例来源：origin: robolectric/robolectric

@Test
@Config(minSdk = JELLY_BEAN_MR1)
public void testFrustumJB_MR1() {
 float[] expected = new float[]{
     0.005f, 0, 0, 0,
     0, 0.02f, 0, 0,
     1.5f, 5, -1.020202f, -1,
     0, 0, -2.020202f, 0,
 };
 float[] output = new float[16];
 Matrix.frustumM(output, 0, 100, 500, 200, 300, 1, 100);
 assertThat(output).usingExactEquality().containsAllOf(expected);
}

代码示例来源：origin: robolectric/robolectric

@Test
@Config(minSdk = JELLY_BEAN, maxSdk = JELLY_BEAN)
public void testFrustumM() {
 // this is actually a bug
 // https://android.googlesource.com/platform/frameworks/base/+/0a088f5d4681fd2da6f610de157bf905df787bf7
 // expected[8] should be 1.5
 // see testFrustumJB_MR1 below
 float[] expected = new float[]{
     0.005f, 0, 0, 0,
     0, 0.02f, 0, 0,
     3f, 5, -1.020202f, -1,
     0, 0, -2.020202f, 0,
 };
 float[] output = new float[16];
 Matrix.frustumM(output, 0, 100, 500, 200, 300, 1, 100);
 assertThat(output).usingExactEquality().containsAllOf(expected);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

public void frustum(float left,float right,float bottom,float top,float near,float far){
  Matrix.frustumM(mMatrixProjection,0,left,right,bottom,top,near,far);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 20);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 1.0f, -10.0f, -4.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 20);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 1.0f, -10.0f, -4.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 20);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 5.0f, 5.0f, 10.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 0, 0, 7.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 0, 0, 7.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 20);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 0.0f, 0.0f, 10.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 20);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 1.0f, -10.0f, -4.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 0, 0, 7.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: doggycoder/AndroidOpenGLDemo

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  //计算宽高比
  float ratio=(float)width/height;
  //设置透视投影
  Matrix.frustumM(mProjectMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
  //设置相机位置
  Matrix.setLookAtM(mViewMatrix, 0, 0, 0, 7.0f, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
  //计算变换矩阵
  Matrix.multiplyMM(mMVPMatrix,0,mProjectMatrix,0,mViewMatrix,0);
}

代码示例来源：origin: glumes/AndroidOpenGLTutorial

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面与视点的距离
    float far       //far面与视点的距离
) {
  Matrix.frustumM(mProjMatrix, 0, left, right, bottom, top, near, far);
}

代码示例来源：origin: JimSeker/opengl

@Override
public void onSurfaceChanged(GL10 unused, int width, int height) {
  // Adjust the viewport based on geometry changes,
  // such as screen rotation
  GLES20.glViewport(0, 0, width, height);
  float ratio = (float) width / height;
  // this projection matrix is applied to object coordinates
  // in the onDrawFrame() method
  Matrix.frustumM(mProjectionMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
}

代码示例来源：origin: qiubiteme/android_api_demos

public void onSurfaceChanged(GL10 glUnused, int width, int height) {
  // Ignore the passed-in GL10 interface, and use the GLES20
  // class's static methods instead.
  GLES20.glViewport(0, 0, width, height);
  float ratio = (float) width / height;
  Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
}

代码示例来源：origin: FacePlusPlus/MegviiFacepp-Android-SDK

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  // 设置画面的大小
  GLES20.glViewport(0, 0, width, height);
  float ratio = (float) width / height;
  ratio = 1; // 这样OpenGL就可以按照屏幕框来画了，不是一个正方形了
  // this projection matrix is applied to object coordinates
  // in the onDrawFrame() method
  Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
  // Matrix.perspectiveM(mProjMatrix, 0, 0.382f, ratio, 3, 700);
}

代码示例来源：origin: glumes/AndroidOpenGLTutorial

public void onSizeChanged(int width, int height) {
  GLES20.glViewport(0, 0, width, height);
  final float ratio = (float) width / height;
  final float left = -ratio;
  final float right = ratio;
  final float bottom = -1.0f;
  final float top = 1.0f;
  final float near = 1.0f;
  final float far = 6.0f;
  Matrix.frustumM(projectionMatrix, 0, left, right, bottom, top, near, far);
}

代码示例来源：origin: THEONE10211024/ApiDemos

public void onSurfaceChanged(GL10 glUnused, int width, int height) {
  // Ignore the passed-in GL10 interface, and use the GLES20
  // class's static methods instead.
  GLES20.glViewport(0, 0, width, height);
  float ratio = (float) width / height;
  Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
}

代码示例来源：origin: MasayukiSuda/GPUVideo-android

@Override
public void onSurfaceChanged(final int width, final int height) {
  Log.d(TAG, "onSurfaceChanged width = " + width + "  height = " + height);
  filterFramebufferObject.setup(width, height);
  previewFilter.setFrameSize(width, height);
  if (glFilter != null) {
    glFilter.setFrameSize(width, height);
  }
  aspectRatio = (float) width / height;
  Matrix.frustumM(ProjMatrix, 0, -aspectRatio, aspectRatio, -1, 1, 5, 7);
  Matrix.setIdentityM(MMatrix, 0);
}

代码示例来源：origin: MasayukiSuda/GPUVideo-android

@Override
public void onSurfaceChanged(int width, int height) {
  filterFramebufferObject.setup(width, height);
  previewShader.setFrameSize(width, height);
  if (glFilter != null) {
    glFilter.setFrameSize(width, height);
  }
  scaleRatio = (float) width / height;
  Matrix.frustumM(ProjMatrix, 0, -scaleRatio, scaleRatio, -1, 1, 5, 7);
}

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