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404 lines
13 KiB
404 lines
13 KiB
/*
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Simple Mesh Combine
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Copyright Unluck Software
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www.chemicalbliss.com
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Change Log
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v1.1
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Added naming and prefab save option
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v1.2
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Added lightmap support
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v1.3
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Added multiple material support
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v1.301
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Fixed compile error trying to unwrap UV in game mode
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v1.4
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Added C# scripts
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v1.41 - 22.01.2015
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Changed from using SharedMaterial.Name to SharedMaterial directly to identify different materials
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Fixed error when combining meshes with more submeshes than materials
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v1.5 -24.01.2015
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Improved editor layout, added more info and tips
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Lightmap option as own function
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Now sets UV2 to null to reduce mesh size
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v1.53 -31.03.2015
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Fixed lightmapping for Unity 5
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v1.54 -01.05.2015
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Fixed build error Unity 5
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v1.6 & v1.61 - 28.05.2015
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Added Export to OBJ (Beta)
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- Used to fix/optimize combined meshes in external 3D sofware
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- Submesh/mulitple material support limited
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Improved Save Mesh asset
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- Save to custom folder
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- Overwrite keeps prefab
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Added Copy functionions
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- Duplicates gameObject then removes all components and empty gameObjects exept Colliders
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- Used to create prefabs with combined mesh + colliders
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Fixed: Deleting combined gameObject no longer gives null error
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v1.62 - 25.04.2016
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Fixed: Null errors
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v1.63 - 26.04.2015
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Added Optional skin
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*/
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using UnityEngine;
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using System;
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using System.IO;
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using System.Text;
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using System.Collections.Generic;
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using UnityEditor;
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[CustomEditor(typeof(SimpleMeshCombine))]
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[System.Serializable]
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public class SimpleMeshCombineEditor: Editor {
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public Texture titleTexture;
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public bool unitySkin = true;
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public void OnEnable(){
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if(PlayerPrefs.GetInt("unitySkin") == 1) unitySkin = true;
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else unitySkin = false;
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}
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public void ToggleUnitySkin(){
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unitySkin = !unitySkin;
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if(unitySkin) PlayerPrefs.SetInt("unitySkin", 1);
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else PlayerPrefs.SetInt("unitySkin", 0);
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}
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public void ExportMesh(MeshFilter meshFilter,string folder,string filename) {
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string path = SaveFile(folder, filename, "obj");
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if (path != null) {
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StreamWriter sw = new StreamWriter(path);
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sw.Write(MeshToString(meshFilter));
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sw.Flush();
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sw.Close();
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AssetDatabase.Refresh();
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Debug.Log("Exported OBJ file to folder: " + path);
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}
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}
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public string MeshToString(MeshFilter meshFilter) {
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Mesh sMesh = meshFilter.sharedMesh;
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StringBuilder stringBuilder = new StringBuilder();
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stringBuilder.Append("g ").Append(meshFilter.name).Append("\n");
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foreach(Vector3 vert in sMesh.vertices) {
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Vector3 tPoint = meshFilter.transform.TransformPoint(vert);
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stringBuilder.Append(String.Format("v {0} {1} {2}\n", -tPoint.x, tPoint.y, tPoint.z));
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}
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stringBuilder.Append("\n");
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foreach(Vector3 norm in sMesh.normals) {
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Vector3 tDir = meshFilter.transform.TransformDirection(norm);
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stringBuilder.Append(String.Format("vn {0} {1} {2}\n", -tDir.x, tDir.y, tDir.z));
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}
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stringBuilder.Append("\n");
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foreach(Vector3 uv in sMesh.uv) {
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stringBuilder.Append(String.Format("vt {0} {1}\n", uv.x, uv.y));
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}
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for(int material = 0; material < sMesh.subMeshCount; material++) {
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stringBuilder.Append("\n");
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int[] tris = sMesh.GetTriangles(material);
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for(int i = 0; i < tris.Length; i += 3) {
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stringBuilder.Append(String.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n", tris[i] + 1, tris[i + 1] + 1, tris[i + 2] + 1));
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}
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}
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return stringBuilder.ToString();
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}
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public string SaveFile(string folder,string name,string type) {
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string newPath = "";
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string path = EditorUtility.SaveFilePanel("Select Folder ", folder, name, type);
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if (path.Length > 0) {
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if (path.Contains("" + Application.dataPath)) {
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string s = "" + path + "";
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string d = "" + Application.dataPath + "/";
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string p = "Assets/" + s.Remove(0, d.Length);
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bool cancel = false;
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if (cancel) Debug.Log("Canceled");
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newPath = p;
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} else {
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Debug.LogError("Prefab Save Failed: Can't save outside project: " + path);
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}
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}
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return newPath;
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}
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public override void OnInspectorGUI() {
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//
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// STYLE AND COLOR
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//
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var target_cs = (SimpleMeshCombine)target;
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Color color2 = Color.white;
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Color color1 = Color.white;
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GUIStyle buttonStyle = new GUIStyle(GUI.skin.button);
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GUIStyle buttonStyle2 = new GUIStyle(GUI.skin.button);
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GUIStyle titleStyle = new GUIStyle(GUI.skin.label);
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if(!unitySkin){
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color2 = Color.yellow;
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color1 = Color.cyan;
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buttonStyle.fontStyle = FontStyle.Bold;
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buttonStyle.fixedWidth = 150.0f;
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buttonStyle.fixedHeight = 35.0f;
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buttonStyle.fontSize = 15;
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buttonStyle2.fixedWidth = 200.0f;
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buttonStyle2.fixedHeight = 25.0f;
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if(titleTexture == null) titleTexture = (Texture)Resources.Load("SMC_Title");
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GUILayout.Label(titleTexture, titleStyle);
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}
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buttonStyle2.margin = new RectOffset((int)((Screen.width - 200) * .5f), (int)((Screen.width - 200) * .5f), 0, 0);
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buttonStyle.margin = new RectOffset((int)((Screen.width - 150) * .5f), (int)((Screen.width - 150) * .5f), 0, 0);
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titleStyle.fixedWidth = 256.0f;
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titleStyle.fixedHeight = 64.0f;
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titleStyle.margin = new RectOffset((int)((Screen.width - 256) * .5f), (int)((Screen.width - 256) * .5f), 0, 0);
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GUIStyle infoStyle = new GUIStyle(GUI.skin.label);
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infoStyle.fontSize = 10;
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infoStyle.margin.top = 0;
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infoStyle.margin.bottom = 0;
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if (!Application.isPlaying) {
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GUI.enabled = true;
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} else {
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GUILayout.Label("Editor can't combine in play-mode", infoStyle);
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GUILayout.Label("Use SimpleMeshCombine.CombineMeshes();", infoStyle);
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GUI.enabled = false;
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}
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GUILayout.Space(15.0f);
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//
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// COMBINE MESH AREA
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//
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GUI.color = color1;
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if (target_cs.combinedGameOjects == null || target_cs.combinedGameOjects.Length == 0) {
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if (GUILayout.Button("Combine", buttonStyle)) {
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if (target_cs.transform.childCount > 1) target_cs.CombineMeshes();
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target_cs.combined.isStatic = true;
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}
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} else {
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if (GUILayout.Button("Release", buttonStyle)) {
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target_cs.EnableRenderers(true);
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if (target_cs.combined != null) DestroyImmediate(target_cs.combined);
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target_cs.combinedGameOjects = null;
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}
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}
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GUILayout.Space(5.0f);
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//
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// SAVE MESH AREA
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//
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if (target_cs.combined != null) {
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if (!target_cs._canGenerateLightmapUV) {
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GUILayout.Label("Warning: Mesh has too high vertex count", EditorStyles.boldLabel);
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GUI.enabled = false;
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}
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if (target_cs.combined.GetComponent<MeshFilter>().sharedMesh.name != "") {
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GUI.enabled = false;
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} else if(!Application.isPlaying){
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GUI.enabled = true;
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}
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if (GUILayout.Button("Save Mesh", buttonStyle2)) {
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string path = SaveFile("Assets/", target_cs.transform.name + " [SMC Asset]", "asset");
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if (path != null) {
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UnityEngine.Object asset = AssetDatabase.LoadAssetAtPath(path, (Type)typeof(object));
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if (asset == null) {
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AssetDatabase.CreateAsset(target_cs.combined.GetComponent<MeshFilter>().sharedMesh, path);
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} else {
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((Mesh)asset).Clear();
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EditorUtility.CopySerialized(target_cs.combined.GetComponent<MeshFilter>().sharedMesh, asset);
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AssetDatabase.SaveAssets();
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}
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target_cs.combined.GetComponent<MeshFilter>().sharedMesh = (Mesh)AssetDatabase.LoadAssetAtPath(path, (Type)typeof(object));
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Debug.Log("Saved mesh asset: " + path);
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}
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}
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GUILayout.Space(5.0f);
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}
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if(!Application.isPlaying){
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GUI.enabled = true;
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}
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if (target_cs.combined != null) {
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if (GUILayout.Button("Export OBJ", buttonStyle2)) {
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if (target_cs.combined != null) {
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ExportMesh(target_cs.combined.GetComponent<MeshFilter>(), "Assets/", target_cs.transform.name + " [SMC Mesh]" + ".obj");
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}
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}
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GUILayout.Space(15.0f);
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//
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// COPY
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//
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GUI.color = color2;
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string bText = "Create Copy";
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if (target_cs.combined.GetComponent<MeshFilter>().sharedMesh.name == "") {
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bText = bText + " (Saved mesh)";
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GUI.enabled = false;
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} else if(!Application.isPlaying){
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GUI.enabled = true;
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}
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if (GUILayout.Button(bText, buttonStyle2)) {
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GameObject newCopy = new GameObject();
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GameObject newCopy2 = new GameObject();
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newCopy2.transform.parent = newCopy.transform;
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newCopy2.transform.localPosition = target_cs.combined.transform.localPosition;
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newCopy2.transform.localRotation = target_cs.combined.transform.localRotation;
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newCopy.name = target_cs.name + " [SMC Copy]";
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newCopy2.name = "Mesh [SMC]";
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newCopy.transform.position = target_cs.transform.position;
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newCopy.transform.rotation = target_cs.transform.rotation;
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MeshFilter mf = newCopy2.AddComponent<MeshFilter>();
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newCopy2.AddComponent<MeshRenderer>();
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mf.sharedMesh = target_cs.combined.GetComponent<MeshFilter>().sharedMesh;
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target_cs.copyTarget = newCopy;
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CopyMaterials(newCopy2.transform);
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CopyColliders();
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Selection.activeTransform = newCopy.transform;
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}
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GUILayout.Space(5.0f);
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if (target_cs.copyTarget == null) {
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GUI.enabled = false;
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} else if(!Application.isPlaying){
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GUI.enabled = true;
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}
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if (GUILayout.Button("Copy Colliders", buttonStyle2)) {
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CopyColliders();
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}
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GUILayout.Space(5.0f);
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if (GUILayout.Button("Copy Materials", buttonStyle2)) {
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CopyMaterials(target_cs.copyTarget.transform.Find("Mesh [SMC]"));
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}
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if (!Application.isPlaying) {
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GUI.enabled = true;
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}
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target_cs.destroyOldColliders = EditorGUILayout.Toggle("Destroy old colliders", target_cs.destroyOldColliders);
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target_cs.keepStructure = EditorGUILayout.Toggle("Keep collider structure", target_cs.keepStructure);
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target_cs.copyTarget = (GameObject)EditorGUILayout.ObjectField("Copy to: ", target_cs.copyTarget, typeof(GameObject), true);
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}
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if(target_cs.combined == null){
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target_cs.generateLightmapUV = EditorGUILayout.Toggle("Create Lightmap UV", target_cs.generateLightmapUV);
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}
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GUILayout.Space(5.0f);
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GUI.color = color1;
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EditorGUILayout.BeginVertical("Box");
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if (target_cs.combined != null) {
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GUILayout.Label("Vertex count: " + target_cs.vCount + " / 65536", infoStyle);
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GUILayout.Label("Material count: " + target_cs.combined.GetComponent<Renderer>().sharedMaterials.Length, infoStyle);
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}else{
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GUILayout.Label("Vertex count: - / 65536", infoStyle);
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GUILayout.Label("Material count: -", infoStyle);
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}
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GUI.color = Color.white;
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EditorGUILayout.EndVertical();
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GUIStyle buttonStyle3 = new GUIStyle(GUI.skin.button);
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buttonStyle3.fixedWidth = 11.0f;
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buttonStyle3.fixedHeight = 14.0f;
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buttonStyle3.fontSize = 9;
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buttonStyle3.padding = new RectOffset(-2,0,0,0);
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EditorGUILayout.BeginHorizontal();
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GUILayout.FlexibleSpace();
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if (GUILayout.Button("S", buttonStyle3)) {
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ToggleUnitySkin();
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}
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EditorGUILayout.EndHorizontal();
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if (GUI.changed) {
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EditorUtility.SetDirty(target_cs);
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}
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}
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public void DestroyComponentsExeptColliders(Transform t){
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var target_cs = (SimpleMeshCombine)target;
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Component[] transforms = t.GetComponentsInChildren(typeof(Transform));
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foreach(Transform trans in transforms){
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if(!target_cs.keepStructure && trans.transform.parent != t && trans.transform != t && (trans.GetComponent(typeof(Collider)) != null)){
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trans.transform.name = ""+ GetParentStructure(t, trans.transform);
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trans.transform.parent = t;
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}
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}
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Component[] components = t.GetComponentsInChildren(typeof(Component));
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foreach(Component comp in components){
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if( !( comp is Collider) && !( comp is Transform) ){
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DestroyImmediate(comp);
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}
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}
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}
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public string GetParentStructure(Transform root,Transform t){
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Transform ct = t;
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string s = "";
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while(ct !=root ){
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s = s.Insert(0, ct.name + " - ");
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ct = ct.parent;
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}
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s = s.Remove(s.Length-3, 3);
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return s;
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}
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public void DestroyEmptyGameObjects(Transform t){
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Component[] components = t.GetComponentsInChildren(typeof(Transform));
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foreach(Transform comp in components){
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if((comp != null) && (comp.childCount == 0 || !CheckChildrenForColliders(comp))){
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Collider col = (Collider)comp.GetComponent(typeof(Collider));
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if(col == null){
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DestroyImmediate(comp.gameObject);
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}
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}
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}
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}
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public bool CheckChildrenForColliders(Transform t){
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Component[] components = t.GetComponentsInChildren(typeof(Collider));
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if(components.Length > 0){
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return true;
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}
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return false;
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}
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public void CopyMaterials(Transform t){
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var target_cs = (SimpleMeshCombine)target;
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Renderer r = t.GetComponent<Renderer>();
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r.sharedMaterials = target_cs.combined.transform.GetComponent<Renderer>().sharedMaterials;
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}
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public void CopyColliders(){
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var target_cs = (SimpleMeshCombine)target;
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GameObject clone = (GameObject)Instantiate(target_cs.gameObject, target_cs.copyTarget.transform.position, target_cs.copyTarget.transform.rotation);
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if(target_cs.destroyOldColliders){
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Transform o = target_cs.copyTarget.transform.Find("Colliders [SMC]");
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if(o != null){
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DestroyImmediate(o.gameObject);
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}
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}
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clone.transform.name = "Colliders [SMC]";
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clone.transform.parent = target_cs.copyTarget.transform;
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DestroyComponentsExeptColliders(clone.transform);
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DestroyEmptyGameObjects(clone.transform);
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}
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}
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