526 lines
24 KiB
C#
526 lines
24 KiB
C#
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#if UNITY_EDITOR
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using UnityEngine;
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using UnityEditor;
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using System.Collections.Generic;
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using System.IO;
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using System;
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using Newtonsoft.Json.Linq;
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namespace Quixel
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{
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/// <summary>
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/// Completely rewritten importer with lots of commenting... Should be quite a bit faster than the previous one too.
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/// For those looking to customize, please be aware that some of the methods in here do not use built in Unity API calls.
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/// Ajwad Imran - Technical Artist @ Quixel.
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/// Lee Devonald - (Former) Technical Artist @ Quixel.
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/// </summary>
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public class MegascansImporter : Editor
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{
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private bool plant = false;
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private string assetName;
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private string type;
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private string mapName;
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private string folderNamingConvention;
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private string path;
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private string activeLOD;
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private int dispType;
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private int texPack;
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private int lodFadeMode;
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private int shaderType;
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private bool setupCollision = false;
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private bool applyToSelection;
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private bool addAssetToScene;
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private bool importAllTextures;
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private string texPath;
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private string matPath;
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private Material finalMat;
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private Material billboardMat;
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private bool highPoly = false;
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private bool isAlembic = false;
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private bool hasBillboardLOD = false;
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private bool hasBillboardLODOnly = false;
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/// <summary>
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/// Takes an imported JSON object, and breaks it into relevant components and data.
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/// Then calls relevant functions for actual import of asset.
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/// </summary>
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/// <param name="objectList"></param>
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public string ImportMegascansAssets(JObject objectList)
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{
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var startTime = System.DateTime.Now;
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activeLOD = (string)objectList["activeLOD"];
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string minLOD = (string)objectList["minLOD"];
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assetName = (string)objectList["name"];
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type = (string)objectList["type"];
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isAlembic = false;
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plant = false;
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highPoly = false;
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hasBillboardLOD = false;
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hasBillboardLODOnly = false;
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mapName = "";
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folderNamingConvention = (string)objectList["folderNamingConvention"];
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//get mesh components from the current object.
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JArray meshComps = (JArray)objectList["meshList"];
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//run a check to see if we're using Unity 5 or below, and then if we're trying to import a high poly mesh. if so, let the user know we are aborting the import.
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if (meshComps.Count > 0)
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{
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isAlembic = Path.GetExtension((string)meshComps[0]["path"]) == ".abc";
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}
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hasBillboardLOD = MegascansMeshUtils.ContainsLowestLOD((JArray)objectList["lodList"], minLOD, activeLOD);
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if (type.ToLower().Contains("3dplant"))
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{
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plant = true;
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if (minLOD == activeLOD)
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{
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hasBillboardLODOnly = true;
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}
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}
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try
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{
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LoadPreferences();
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shaderType = MegascansUtilities.GetShaderType();
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MegascansUtilities.CalculateNumberOfOperations(objectList, dispType, texPack, shaderType, hasBillboardLODOnly);
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path = ConstructPath(objectList);
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if (path == null || path == "")
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{
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Debug.Log("Asset: " + (string)objectList["name"] + " already exist in the Project. Please delete/rename the existing folder and re-import this asset.");
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AssetDatabase.Refresh();
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return null;
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}
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}
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catch (Exception ex)
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{
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Debug.Log("Error setting import path.");
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Debug.Log(ex.ToString());
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MegascansUtilities.HideProgressBar();
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}
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try
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{
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//process textures
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ProcessTextures(objectList);
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if (finalMat == null && !(plant && hasBillboardLODOnly))
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{
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Debug.Log("Could not import the textures and create the material.");
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return null;
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}
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else
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{
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if (type.ToLower().Contains("surface") && applyToSelection)
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{
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foreach (MeshRenderer render in MegascansUtilities.GetSelectedMeshRenderers())
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{
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render.material = finalMat;
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}
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}
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}
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}
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catch (Exception ex)
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{
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Debug.Log("Error importing textures.");
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Debug.Log(ex.ToString());
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MegascansUtilities.HideProgressBar();
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}
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//process meshes
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if (meshComps == null && !type.Contains("surface"))
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{
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Debug.LogError("No meshes found. Please double check your export settings.");
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Debug.Log("Import failed.");
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return null;
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}
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if (meshComps.Count > 0)
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{
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if (activeLOD == "high")
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{
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//detect if we're trying to import a high poly mesh...
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string msg = "You are about to import a high poly mesh. \nThese meshes are usually millions of polygons and can cause instability to your project. \nWould you like to proceed?";
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highPoly = EditorUtility.DisplayDialog("WARNING!", msg, "Yes", "No");
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}
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try
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{
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//process meshes and prefabs
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PrefabData prefData = new PrefabData(path, assetName, folderNamingConvention, lodFadeMode, highPoly, addAssetToScene, setupCollision, hasBillboardLOD, isAlembic, false, false, finalMat, billboardMat, new List<string>(), new List<List<string>>());
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MegascansMeshUtils.ProcessMeshes(objectList, path, highPoly, plant, prefData);
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}
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catch (Exception ex)
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{
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Debug.Log("Error importing meshes.");
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Debug.Log(ex.ToString());
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MegascansUtilities.HideProgressBar();
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}
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}
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var endTime = System.DateTime.Now;
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var totalTime = endTime - startTime;
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Debug.Log("Asset Import Time: " + totalTime);
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AssetDatabase.Refresh();
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MegascansUtilities.HideProgressBar();
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Resources.UnloadUnusedAssets();
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GC.Collect();
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return path;
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}
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#region Texture Processing Methods
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void ProcessTextures(JObject objectList)
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{
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texPath = MegascansUtilities.ValidateFolderCreate(path, "Textures");
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matPath = Path.Combine(MegascansUtilities.ValidateFolderCreate(path, "Materials"), folderNamingConvention);
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if (!(plant && hasBillboardLODOnly))
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{
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MegascansUtilities.UpdateProgressBar(1.0f, "Processing Asset " + assetName, "Creating material...");
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finalMat = MegascansMaterialUtils.CreateMaterial(shaderType, matPath, isAlembic, dispType, texPack);
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ImportAllTextures(finalMat, (JArray)objectList["components"]);
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ImportAllTextures(finalMat, (JArray)objectList["packedTextures"]);
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}
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if (plant && hasBillboardLOD)
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{
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texPath = MegascansUtilities.ValidateFolderCreate(texPath, "Billboard");
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matPath += "_Billboard";
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MegascansUtilities.UpdateProgressBar(1.0f, "Processing Asset " + assetName, "Creating material...");
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billboardMat = MegascansMaterialUtils.CreateMaterial(shaderType, matPath, isAlembic, dispType, texPack);
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ImportAllTextures(billboardMat, (JArray)objectList["components-billboard"]);
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ImportAllTextures(billboardMat, (JArray)objectList["packed-billboard"]);
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}
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}
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void ImportAllTextures(Material mat, JArray texturesList)
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{
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try
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{
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List<string> typesOfTexturesAvailable = new List<string>();
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for (int i = 0; i < texturesList.Count; i++)
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{
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typesOfTexturesAvailable.Add((string)texturesList[i]["type"]);
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}
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string destTexPath;
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Texture2D tex;
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for (int i = 0; i < texturesList.Count; i++)
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{
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mapName = (string)texturesList[i]["type"];
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MegascansUtilities.UpdateProgressBar(1.0f, "Processing Asset " + assetName, "Importing texture: " + mapName);
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if ((string)texturesList[i]["type"] == "albedo" || ((string)texturesList[i]["type"] == "diffuse" && !typesOfTexturesAvailable.Contains("albedo")))
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{
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destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
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MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath);
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tex = texPrcsr.ImportTexture();
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mat.SetTexture("_MainTex", tex);
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mat.SetTexture("_BaseColorMap", tex);
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if (shaderType == 1)
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{
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mat.SetTexture("_BaseMap", tex);
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mat.SetColor("_BaseColor", Color.white);
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}
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if (MegascansUtilities.AlbedoHasOpacity((JObject)texturesList[i]["channelsData"]))
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{
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float alphaCutoff = 0.33f;
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texPrcsr.AdjustAlphaCutoff();
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if (shaderType > 0)
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{
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mat.SetFloat("_AlphaClip", 1);
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mat.SetFloat("_Cutoff", 0.1f);
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mat.SetFloat("_Mode", 1);
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mat.SetFloat("_Cull", 0);
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mat.EnableKeyword("_ALPHATEST_ON");
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}
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else
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{
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mat.SetInt("_AlphaCutoffEnable", 1);
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mat.SetFloat("_AlphaCutoff", alphaCutoff);
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mat.SetInt("_DoubleSidedEnable", 1);
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mat.SetOverrideTag("RenderType", "TransparentCutout");
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mat.SetInt("_ZTestGBuffer", (int)UnityEngine.Rendering.CompareFunction.Equal);
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mat.SetInt("_CullMode", (int)UnityEngine.Rendering.CullMode.Off);
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mat.SetInt("_CullModeForward", (int)UnityEngine.Rendering.CullMode.Back);
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mat.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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mat.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
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mat.SetInt("_ZWrite", 1);
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mat.renderQueue = 2450;
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mat.SetInt("_ZTestGBuffer", (int)UnityEngine.Rendering.CompareFunction.Equal);
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mat.EnableKeyword("_ALPHATEST_ON");
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mat.EnableKeyword("_DOUBLESIDED_ON");
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mat.DisableKeyword("_BLENDMODE_ALPHA");
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}
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}
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}
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else if ((string)texturesList[i]["type"] == "specular")
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{
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if (texPack > 0)
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{
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destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
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MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath);
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tex = texPrcsr.ImportTexture();
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mat.SetTexture("_SpecGlossMap", tex);
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mat.SetTexture("_SpecularColorMap", tex);
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mat.SetColor("_SpecColor", new UnityEngine.Color(1.0f, 1.0f, 1.0f));
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mat.SetColor("_SpecularColor", new UnityEngine.Color(1.0f, 1.0f, 1.0f));
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mat.SetFloat("_WorkflowMode", 0);
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mat.SetFloat("_MaterialID", 4);
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mat.EnableKeyword("_METALLICSPECGLOSSMAP");
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mat.EnableKeyword("_SPECGLOSSMAP");
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mat.EnableKeyword("_SPECULAR_SETUP");
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mat.EnableKeyword("_SPECULARCOLORMAP");
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mat.EnableKeyword("_MATERIAL_FEATURE_SPECULAR_COLOR");
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}
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}
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else if ((string)texturesList[i]["type"] == "masks")
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{
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if (texPack < 1 || shaderType < 1)
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{
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destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
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MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath, false, false);
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tex = texPrcsr.ImportTexture();
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mat.SetTexture("_MaskMap", tex);
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mat.SetTexture("_MetallicGlossMap", tex);
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mat.EnableKeyword("_MASKMAP");
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mat.SetFloat("_MaterialID", 1);
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mat.EnableKeyword("_METALLICSPECGLOSSMAP");
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mat.EnableKeyword("_METALLICGLOSSMAP");
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bool hasMetalness;
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bool hasAO;
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bool hasGloss;
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MegascansUtilities.MaskMapComponents((JObject)texturesList[i]["channelsData"], out hasMetalness, out hasAO, out hasGloss);
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if (!hasMetalness)
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{
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mat.SetFloat("_Metallic", 1.0f);
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}
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if (hasAO)
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{
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mat.SetTexture("_OcclusionMap", tex);
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mat.EnableKeyword("_OCCLUSIONMAP");
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}
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}
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}
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else if ((string)texturesList[i]["type"] == "normal")
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{
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string normalMapPath = (string)texturesList[i]["path"];
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if (activeLOD == "high" && !normalMapPath.Contains("NormalBump"))
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{
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for (int x = 0; x < 10; x++)
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{
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string n = normalMapPath.Replace("_LOD" + x.ToString(), "Bump");
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if (File.Exists(n))
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{
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normalMapPath = n;
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break;
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}
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}
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if (normalMapPath.Contains("NormalBump"))
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continue;
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}
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destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor(normalMapPath, destTexPath, true, false);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
mat.SetTexture("_BumpMap", tex);
|
|||
|
|
mat.SetTexture("_NormalMap", tex);
|
|||
|
|
mat.EnableKeyword("_NORMALMAP_TANGENT_SPACE");
|
|||
|
|
mat.EnableKeyword("_NORMALMAP");
|
|||
|
|
}
|
|||
|
|
else if ((string)texturesList[i]["type"] == "ao" && texPack > 0)
|
|||
|
|
{
|
|||
|
|
destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath, false, false);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
mat.SetTexture("_OcclusionMap", tex);
|
|||
|
|
mat.EnableKeyword("_OCCLUSIONMAP");
|
|||
|
|
}
|
|||
|
|
else if ((string)texturesList[i]["type"] == "displacement")
|
|||
|
|
{
|
|||
|
|
if (dispType > 0)
|
|||
|
|
{
|
|||
|
|
destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath, false, false);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
mat.SetTexture("_HeightMap", tex);
|
|||
|
|
mat.SetTexture("_ParallaxMap", tex);
|
|||
|
|
mat.EnableKeyword("_DISPLACEMENT_LOCK_TILING_SCALE");
|
|||
|
|
if (shaderType == 0)
|
|||
|
|
mat.EnableKeyword("_HEIGHTMAP");
|
|||
|
|
if (dispType == 1)
|
|||
|
|
{
|
|||
|
|
mat.EnableKeyword("_VERTEX_DISPLACEMENT");
|
|||
|
|
mat.EnableKeyword("_VERTEX_DISPLACEMENT_LOCK_OBJECT_SCALE");
|
|||
|
|
}
|
|||
|
|
else if (dispType == 2)
|
|||
|
|
{
|
|||
|
|
mat.EnableKeyword("_PARALLAXMAP");
|
|||
|
|
mat.EnableKeyword("_PIXEL_DISPLACEMENT");
|
|||
|
|
mat.EnableKeyword("_PIXEL_DISPLACEMENT_LOCK_OBJECT_SCALE");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if ((string)texturesList[i]["type"] == "translucency")
|
|||
|
|
{
|
|||
|
|
destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
|
|||
|
|
mat.SetTexture("_SubsurfaceMaskMap", tex);
|
|||
|
|
mat.EnableKeyword("_SUBSURFACE_MASK_MAP");
|
|||
|
|
mat.SetInt("_DiffusionProfile", 1);
|
|||
|
|
mat.SetFloat("_EnableSubsurfaceScattering", 1);
|
|||
|
|
if (!typesOfTexturesAvailable.Contains("transmission"))
|
|||
|
|
{
|
|||
|
|
mat.SetTexture("_ThicknessMap", tex);
|
|||
|
|
mat.EnableKeyword("_THICKNESSMAP");
|
|||
|
|
}
|
|||
|
|
if (plant)
|
|||
|
|
{
|
|||
|
|
mat.SetInt("_DiffusionProfile", 2);
|
|||
|
|
mat.SetFloat("_CoatMask", 0.0f);
|
|||
|
|
mat.SetInt("_EnableWind", 1);
|
|||
|
|
mat.EnableKeyword("_VERTEX_WIND");
|
|||
|
|
}
|
|||
|
|
MegascansMaterialUtils.AddSSSSettings(mat, shaderType);
|
|||
|
|
}
|
|||
|
|
else if ((string)texturesList[i]["type"] == "transmission")
|
|||
|
|
{
|
|||
|
|
destTexPath = Path.Combine(texPath, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor((string)texturesList[i]["path"], destTexPath, false, false);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
|
|||
|
|
mat.SetTexture("_ThicknessMap", tex);
|
|||
|
|
mat.EnableKeyword("_THICKNESSMAP");
|
|||
|
|
mat.SetInt("_DiffusionProfile", 2);
|
|||
|
|
MegascansMaterialUtils.AddSSSSettings(mat, shaderType);
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
else if (importAllTextures)
|
|||
|
|
{
|
|||
|
|
mapName = (string)texturesList[i]["type"];
|
|||
|
|
string mapPath = (string)texturesList[i]["path"];
|
|||
|
|
string otherTexFolder = MegascansUtilities.ValidateFolderCreate(texPath, "Others");
|
|||
|
|
destTexPath = Path.Combine(otherTexFolder, (string)texturesList[i]["nameOverride"]);
|
|||
|
|
MegascansTextureProcessor texPrcsr = new MegascansTextureProcessor(mapPath, destTexPath);
|
|||
|
|
tex = texPrcsr.ImportTexture();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
catch (Exception ex)
|
|||
|
|
{
|
|||
|
|
Debug.Log("Exception::MegascansImporter::ImportAllTextures:: " + ex.ToString());
|
|||
|
|
MegascansUtilities.HideProgressBar();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
#region Formatting Utilities
|
|||
|
|
|
|||
|
|
void LoadPreferences()
|
|||
|
|
{
|
|||
|
|
path = MegascansUtilities.FixPath(EditorPrefs.GetString("QuixelDefaultPath", "Quixel/Megascans/"));
|
|||
|
|
dispType = EditorPrefs.GetInt("QuixelDefaultDisplacement");
|
|||
|
|
texPack = EditorPrefs.GetInt("QuixelDefaultTexPacking");
|
|||
|
|
shaderType = EditorPrefs.GetInt("QuixelDefaultShader");
|
|||
|
|
lodFadeMode = EditorPrefs.GetInt("QuixelDefaultLodFadeMode", 1);
|
|||
|
|
setupCollision = EditorPrefs.GetBool("QuixelDefaultSetupCollision", true);
|
|||
|
|
applyToSelection = EditorPrefs.GetBool("QuixelDefaultApplyToSelection", false);
|
|||
|
|
addAssetToScene = EditorPrefs.GetBool("QuixelDefaultAddAssetToScene", false);
|
|||
|
|
importAllTextures = EditorPrefs.GetBool("QuixelDefaultImportAllTextures", false);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Returns the final directory for our asset, creating subfolders where necessary in the 'Assets' directory.
|
|||
|
|
/// </summary>
|
|||
|
|
string ConstructPath(JObject objectList)
|
|||
|
|
{
|
|||
|
|
/// Make sure path is "Assets/...." not "D:/Unity Projects/My Project/Assets/...." otherwise the AssetDatabase cannot write files to it.
|
|||
|
|
/// Lastly I also match the path with the Application DataPath in order to make sure this is the right path selected from the Bridge.
|
|||
|
|
|
|||
|
|
AssetDatabase.Refresh();
|
|||
|
|
|
|||
|
|
string defPath = "";
|
|||
|
|
bool addNextPathPart = false;
|
|||
|
|
|
|||
|
|
if ((string)objectList["exportPath"] != "")
|
|||
|
|
{
|
|||
|
|
path = (string)objectList["exportPath"];
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defPath = "Assets";
|
|||
|
|
addNextPathPart = true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
string[] pathParts = MegascansUtilities.FixSlashes(path).Split('/');
|
|||
|
|
|
|||
|
|
List<string> finalPathParts = new List<string>();
|
|||
|
|
|
|||
|
|
foreach (string part in pathParts)
|
|||
|
|
{
|
|||
|
|
if (part == "Assets" && !addNextPathPart)
|
|||
|
|
{
|
|||
|
|
addNextPathPart = true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (addNextPathPart)
|
|||
|
|
{
|
|||
|
|
finalPathParts.Add(part);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!addNextPathPart)
|
|||
|
|
{
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//First, create the user specified path from the importer settings.
|
|||
|
|
|
|||
|
|
if (finalPathParts.Count > 0)
|
|||
|
|
{
|
|||
|
|
for (int i = 0; i < finalPathParts.Count; i++)
|
|||
|
|
{
|
|||
|
|
defPath = MegascansUtilities.ValidateFolderCreate(defPath, finalPathParts[i]); //FixSlashes(Path.Combine(defPath, finalPathParts[i]));//ValidateFolderCreate(defPath, finalPathParts[i]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!AssetDatabase.IsValidFolder(defPath))
|
|||
|
|
{
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//then create check to see if the asset type subfolder exists, create it if it doesn't.
|
|||
|
|
defPath = MegascansUtilities.ValidateFolderCreate(defPath, MegascansUtilities.GetAssetType((string)objectList["path"]));
|
|||
|
|
defPath = MegascansUtilities.ValidateFolderCreate(defPath, folderNamingConvention);
|
|||
|
|
return defPath;
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
#endif
|