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Assets/Plugins/MeshCombineStudio/Scripts/Examples/SelectOriginal.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MeshCombineStudio 
+{
+	public class SelectOriginal : MonoBehaviour 
+	{
+		public MeshCombiner meshCombiner;
+		public Camera mainCamera;
+		public Material matSelect;
+
+		Material oldMat;
+		Vector3 oldPos;
+		MeshRenderer oldMr;
+
+		// This Example script will deactive the combined mesh renderers of the cell and activate the originals.
+		// When deselecting it will switch back to enabled combined mesh renderers and disabled originals.
+
+		void Update() 
+		{
+			RaycastHit hit;
+			Ray ray = mainCamera.ScreenPointToRay(Input.mousePosition);
+
+			if (Input.GetKeyDown(KeyCode.Tab)) Deselect(); // Deselect because Tab switches MCS ON/OFF
+
+			if (Physics.Raycast(ray, out hit))
+			{
+				Transform hitT = hit.transform;
+				var mr = hitT.GetComponent<MeshRenderer>();
+
+				if (mr != null)
+				{
+					if (mr == oldMr) return;
+					Deselect();
+
+					oldMr = mr;
+					if (meshCombiner.searchOptions.objectCenter == MeshCombiner.ObjectCenter.BoundsCenter) oldPos = oldMr.bounds.center; else oldPos = hitT.position;
+					oldMat = oldMr.sharedMaterial;
+					SelectOrDeselect(oldPos, oldMr, matSelect, true);
+				}
+			}
+			else 
+			{
+				Deselect();
+            }
+		}
+
+		void Deselect()
+        {
+			if (oldMr != null) SelectOrDeselect(oldPos, oldMr, oldMat, false);
+		}
+
+		void SelectOrDeselect(Vector3 position, MeshRenderer mr, Material mat, bool select)
+		{
+			var octree = meshCombiner.octree;
+
+			if (octree == null) return;
+
+			ObjectOctree.MaxCell cell = octree.GetCell(position);
+
+			if (cell == null) return;
+
+			mr.sharedMaterial = mat;
+
+			if (meshCombiner.activeOriginal) return;
+
+			ObjectOctree.LODParent[] lodParents = cell.lodParents;
+
+			for (int i = 0; i < lodParents.Length; i++)
+            {
+				ObjectOctree.LODParent lodParent = lodParents[i];
+				if (lodParent == null) continue;
+
+				ObjectOctree.LODLevel[] lodLevels = lodParent.lodLevels;
+
+				for (int j = 0; j < lodLevels.Length; j++)
+                {
+					ObjectOctree.LODLevel lodLevel = lodLevels[j];
+
+					if (lodLevel == null) continue;
+
+					Methods.SetMeshRenderersActive(lodLevel.newMeshRenderers, !select);
+					Methods.SetCachedGOSActive(lodLevel.cachedGOs, select);
+                }
+            }
+		}
+	}
+}