Version: 2020.3
  • C#

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Called when the window gets keyboard focus.

See Also: OnLostFocus.

Preview your camera in orthographic mode when you select the window.

// Simple script that lets you preview your main camera in
// Orthographic view when selected.

using UnityEngine; using UnityEditor;

public class ExampleClass : EditorWindow { RenderTexture renderTexture; Camera camera;

[MenuItem("Examples/Orthographic Previewer")] static void Init() { ExampleClass window = (ExampleClass)EditorWindow.GetWindow(typeof(ExampleClass), true, "My Empty Window"); window.Show(); }

void OnEnable() { int w = (int)this.position.width; int h = (int)this.position.height;

renderTexture = new RenderTexture(w, h, 32, RenderTextureFormat.ARGB32); camera = Camera.main; }

void OnInspectorUpdate() { this.Repaint(); }

void OnGUI() { if (GUILayout.Button("Close")) { camera.orthographic = false; this.Close(); } if (renderTexture != null) { float w = this.position.width; float h = this.position.height; GUI.DrawTexture(new Rect(0.0f, 50.0f, w, h), renderTexture); } }

void OnFocus() { Selection.activeTransform = camera.transform; camera.orthographic = true; }

void Update() { if (camera != null) { camera.targetTexture = renderTexture; camera.Render(); camera.targetTexture = null; }

int w = (int)this.position.width; int h = (int)this.position.height; if (renderTexture.width != w || renderTexture.height != h) { renderTexture = new RenderTexture(w, h, 32, RenderTextureFormat.ARGB32); } }

void OnLostFocus() { camera.orthographic = false; } }