Ugui learning notes (I) rendering level

1.Unity3D The rendering order in is as follows ：
  Different Camera Of Depth
  identical Camera The next difference SortingLayer
  identical SortingLayer The next difference Z Axis /Order in Layer


2. Change the hierarchical relationship between controls
 (1) same canvas Next ：
      Change control transform Of SiblingIndex,
     transform.GetSiblingIndex();
     transform.SetSiblingIndex(int index); //index The bigger the value is. , Post crossing rendering , The higher the level , The more displayed in front


 (2) Different Canvas Next ：
    Set up Canvas Under the Sort Order //Sort Order The bigger the value is. , Post crossing rendering , The higher the level , The more displayed in front

 

Render order and hierarchy The placement order of objects in the panel is also related

Pictured , The objects on the upper side of the panel are rendered first , The rendered image is displayed in front of the image .

Render Mode All are Screen Space-Camera Render order when

1. Follow the painting rules

2. Followed by Render Camera Of Depth value 、Sorting  Layer Order 、Order in Layer Values determine

Render Camera Different time , from Render Camera Of Depth decision

Render Camera Phase at the same time , from Sorting Layer Order determines

Render Camera Phase at the same time ,Sorting Layer identical , from Order in Layer Values determine .

Two 、1.OverLay Pattern , Always cover other objects . Appear on the top . Not affected by the camera Depth Value impact .

2. When there are multiple cameras , By the camera Depth Values determine

3. When there is only one camera , Determined by distance and direction World Patterns and Camera Pattern 、 Their rendering results Ke Qian 、 After that 、 Can be interspersed .

transform.SetAsLastSibling

transform.SetAsFirstSibling

transform.SetSiblingIndex The three functions can be used flexibly , You can dynamically modify the occlusion relationship between pictures in the code

transform.GetSiblingIndex You can get an object in the code UI The positional relationship in the view