Display类中创建,onDrawFrame方法,用face.getFaceGeometry()方法来获取人脸Mesh
public void onDrawFrame(ARCamera camera, ARFace face) {
ARFaceGeometry faceGeometry = face.getFaceGeometry();
updateFaceGeometryData(faceGeometry);
updateModelViewProjectionData(camera, face);
drawFaceGeometry();
faceGeometry.release();
}
- 在FaceGeometryDisplay类中创建方法updateFaceGeometryData()传入人脸Mesh数据进行配置 用OpenGl来设置表情参数
private void updateFaceGeometryData(ARFaceGeometry faceGeometry){
FloatBuffer faceVertices = faceGeometry.getVertices();
FloatBuffer textureCoordinates =faceGeometry.getTextureCoordinates();
//获取人脸Mesh纹理坐标点数组,在渲染时,与getVertices()返回的顶点数据配合使用。
}
- 创建FaceRenderManager类,此类来管理与人脸数据相关的渲染:
public class FaceRenderManager implements GLSurfaceView.Renderer {
//构造函数初始化上下文和activity
public FaceRenderManager(Context context, Activity activity) {
mContext = context;
mActivity = activity;
}
//设置ARSession,获取最新数据
public void setArSession(ARSession arSession) {
if (arSession == null) {
LogUtil.error(TAG, "Set session error, arSession is null!");
return;
}
mArSession = arSession;
}
//设置ARConfigBase,获取配置模式。
public void setArConfigBase(ARConfigBase arConfig) {
if (arConfig == null) {
LogUtil.error(TAG, "setArFaceTrackingConfig error, arConfig is null.");
return;
}
mArConfigBase = arConfig;
}
//设置外置摄像头打开方式
public void setOpenCameraOutsideFlag(boolean isOpenCameraOutsideFlag) {
isOpenCameraOutside = isOpenCameraOutsideFlag;
}
...
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
mFaceGeometryDisplay.init(mContext);
}
}
- 最后在FaceActivity中 调用方法:通过设置这些方法来实现最终的效果
public class FaceActivity extends BaseActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
mFaceRenderManager = new FaceRenderManager(this, this);
mFaceRenderManager.setDisplayRotationManage(mDisplayRotationManager);
mFaceRenderManager.setTextView(mTextView);
glSurfaceView.setRenderer(mFaceRenderManager);
glSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);
}
}
具体实现可参考示例代码。
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