VR+全景播放器+头控讲解-01-知识储备
VR+全景播放器+头控讲解-02-创建球体
VR+全景播放器+头控讲解-03-渲染视频
VR+全景播放器+头控讲解-04-滑动手势
VR+全景播放器+头控讲解-05-伸缩画面
VR+全景播放器+头控讲解-06-头控实现
VR+全景播放器+头控讲解-07-分屏技术

本节学习目标

如何实现通过手势移动来调节呈现出来的画面位置

实现步骤

• 1.单独创建一个视图放在最外层,放手势对象

   [view addGestureRecognizer:self.panGesture];
  

• 2.创建一个滑动手势

   self.pinchGesture = [[UIPinchGestureRecognizer alloc]initWithTarget:self     action:@selector(pinchGesture:)];
  

• 3.转换为旋转角度

   if (panGesture.state == UIGestureRecognizerStateBegan){
    CGPoint currentPoint = [panGesture locationInView:panGesture.view];
    self.lastPoint_x = currentPoint.x;
    self.lastPoint_y = currentPoint.y;
    [self.delegate gestureManager:self panGesture:panGesture matrix4:SCNMatrix4Identity];
  }else{
    CGPoint currentPoint = [panGesture locationInView:panGesture.view];
    float distX = currentPoint.x - self.lastPoint_x;
    float distY = currentPoint.y - self.lastPoint_y;
    self.lastPoint_x = currentPoint.x;
    self.lastPoint_y = currentPoint.y;
    // 这里进行手势滑动视角的微调,根据需求设置
    distX *= -0.005;
    distY *= -0.005;
    self.fingerRotationY += distX *  OSVIEW_CORNER / 100.0;
    self.fingerRotationX += distY *  OSVIEW_CORNER / 100.0;
    SCNMatrix4 modelMatrix = SCNMatrix4Identity;
    modelMatrix = SCNMatrix4Rotate(modelMatrix, self.fingerRotationX,1, 0, 0);
    modelMatrix = SCNMatrix4Rotate(modelMatrix, self.fingerRotationY, 0, 1, 0);
  

• 4.改变照相机的旋转角度

  self.eyeNode.pivot = modelMatrix;
  

本节讲解完毕
SceneKit 中文教程