VR+全景播放器+頭控講解-01-知識儲備
VR+全景播放器+頭控講解-02-創建球體
VR+全景播放器+頭控講解-03-渲染視頻
VR+全景播放器+頭控講解-04-滑動手勢
VR+全景播放器+頭控講解-05-伸縮畫面
VR+全景播放器+頭控講解-06-頭控實現
VR+全景播放器+頭控講解-07-分屏技術

本節學習目標

如何實現通過手勢移動來調節呈現出來的畫面位置

實現步驟

• 1.單獨創建一個視圖放在最外層,放手勢對象

   [view addGestureRecognizer:self.panGesture];
  

• 2.創建一個滑動手勢

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

• 3.轉換為旋轉角度

   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;
    // 這里進行手勢滑動視角的微調,根據需求設置
    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.改變照相機的旋轉角度

  self.eyeNode.pivot = modelMatrix;
  

本節講解完畢
SceneKit 中文教程