Question

我已经看了几段视频并阅读了一些帖子，它们表明我可以在游戏中通过更改MainCamera（Unity 2D游戏，正交投影）的Size参数来缩放摄像机视图。这样做可以放大和缩小“场景视图”，但是我在Inspector中任何地方所做的更改都不会更改“游戏”视图。

有人可以建议吗？谢谢。

Answer 1

正射影像大小定义了摄影机的观看量，并且只会缩放摄影机渲染的元素。您似乎正在尝试放大Canvas，但是UI元素呈现在整个场景的顶部。

要放大和缩小，您可以：

将“画布渲染模式”设置为“ 世界空间”，然后将其放置在相机前面

使用脚本可以放大画布，在此处查看：Pinch zoom on UI

 public class PinchZoom : MonoBehaviour
 {
     public Canvas canvas; // The canvas
     public float zoomSpeed = 0.5f;        // The rate of change of the canvas scale factor

     void Update()
     {
         // If there are two touches on the device...
         if (Input.touchCount == 2)
         {
             // Store both touches.
             Touch touchZero = Input.GetTouch(0);
             Touch touchOne = Input.GetTouch(1);

             // Find the position in the previous frame of each touch.
             Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
             Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;

             // Find the magnitude of the vector (the distance) between the touches in each frame.
             float prevTouchDeltaMag = (touchZeroPrevPos - touchOnePrevPos).magnitude;
             float touchDeltaMag = (touchZero.position - touchOne.position).magnitude;

             // Find the difference in the distances between each frame.
             float deltaMagnitudeDiff = prevTouchDeltaMag - touchDeltaMag;

             // ... change the canvas size based on the change in distance between the touches.
             canvas.scaleFactor -= deltaMagnitudeDiff * zoomSpeed;

             // Make sure the canvas size never drops below 0.1
             canvas.scaleFactor = Mathf.Max(canvas.scaleFactor, 0.1f);
         }
     }
 }

希望这对您有帮助！

为什么我无法缩放Unity2D Orthographic游戏？

1 个答案: