3D.ru

using System;
using UnityEditor;
using UnityEngine;

public class ShaderTimeUpdate : EditorWindow {

        private static float time;
        private static Vector4 vTime;
        private EditorApplication.CallbackFunction s_backgroundUpdateCB;

        public void BackgroundUpdateFunc() {
                if (!EditorApplication.isPlaying || EditorApplication.isPaused) {
                        time = (float)EditorApplication.timeSinceStartup;
                        vTime = new Vector4(time * 0.05f, time, time * 2, time * 3);
                        Shader.SetGlobalVector("_unityTime", vTime);
                        UnityEditorInternal.InternalEditorUtility.RepaintAllViews();
                }
        }

        [MenuItem("Window/Background Updater")]
        public static void Launch() {
                EditorWindow window = GetWindow(typeof(ShaderTimeUpdate));
                window.Show();
        }

        void OnEnable() {
                s_backgroundUpdateCB = new EditorApplication.CallbackFunction(BackgroundUpdateFunc);
                EditorApplication.update += s_backgroundUpdateCB;
        }

        void OnDisable() {
                EditorApplication.update -= s_backgroundUpdateCB;
        }

}