GUI.BeginGroup() Without Clipping

Hi. I'm creating an EditorWindow in which I'm drawing a lot of GUI boxes. I'd like to offset all my boxes by a specific x and y amount. For example, a box that normally starts at (0, 0) would now start at (0 + xOffset, 0 + yOffset).

Seems like this simplest way to do this would be to modify GUI.matrix to automatically give everything this offset. This works, but it automatically clips anything with a negative value (which is something I'm doing often).

GUI.BeginGroup() and GUILayout.BeginArea() also do this sort of clipping, which I need to avoid. I'm concerned that manually adding an offset to each Box's rect before drawing it will have a noticeable performance impact, and my tests are backing that up.

Is there any way to disable clipping when working with GUI.matrix, GUI.BeginGroup(), or GUILayout.BeginArea()? This would be very helpful. Thanks for any tips!

Orion

 

You can try this:

Code (csharp):

1.  
2.         private static void BeginClip(Rect rect, Matrix4x4 matrix) {
3.             rect.min = matrix.inverse.MultiplyVector( rect.min );
4.             rect.max = matrix.inverse.MultiplyVector( rect.max );
5.  
6.             GUI.matrix = matrix;
7.             BeginWindowClip();
8.             GUI.BeginClip( rect );
9.         }
10.  
11.         private static void EndClip() {
12.             GUI.EndClip();
13.             EndWindowClip();
14.             GUI.matrix = Matrix4x4.identity;
15.         }
16.  
17.  
18.         private static void BeginWindowClip() {
19.             Rect rect = Rect.MinMaxRect( 1, 18, Screen.width, Screen.height );
20.             rect.min = GUI.matrix.inverse.MultiplyPoint( rect.min );
21.             rect.max = GUI.matrix.inverse.MultiplyPoint( rect.max );
22.  
23.             // End the group Unity begins automatically for an EditorWindow to clip out the window tab. This allows us to draw outside of the size of the EditorWindow.
24.             GUI.EndClip(); // scroll area
25.             GUI.EndClip(); // base group
26.             GUI.BeginClip( rect );
27.         }
28.  
29.         private static void EndWindowClip() {
30.             GUI.EndClip();
31.             GUI.BeginClip( new Rect( 2, 18, Screen.width, Screen.height ) ); // base group
32.             GUI.BeginClip( new Rect( 0, 0, Screen.width, Screen.height ) ); // scroll area
33.         }
34.  

But in inspector it has problem with scrolling.
In EditorWindow it must work but you have to remove 'scroll area'.