/// <summary>
/// Called as a coroutine by ImportFile()
/// </summary>
/// <param name="absolutePath"></param>
/// <param name="parentObject"></param>
/// TODO: refactor this method, it is too long.
private IEnumerator ImportFileAsync(string absolutePath, Transform parentObject)
{
Loader loader = CreateLoader(absolutePath);
if (loader == null)
{
yield break;
}
loader.buildOptions = buildOptions;
Debug.Log("Loading: " + absolutePath);
float startTotTime = Time.realtimeSinceStartup;
float startTime = Time.realtimeSinceStartup;
importPhase = ImportPhase.TextureImport;
string dirName = Path.GetDirectoryName(absolutePath);
string sourceBasePath = string.IsNullOrEmpty(dirName) ? "" : dirName;
if (!sourceBasePath.EndsWith("/"))
{
sourceBasePath += "/";
}
string newName = Path.GetFileNameWithoutExtension(absolutePath);//fileInfo.Name.Substring(0, fileInfo.Name.Length - 4);
if (importAssets)
{
Debug.LogFormat("Importing assets from {0}...", absolutePath);
importMessage = "Creating folders...";
FileInfo fileInfo = new FileInfo(absolutePath);
string fileName = fileInfo.Name;
if (!string.IsNullOrEmpty(importAssetPath))
{
EditorUtil.CreateAssetFolder("Assets", importAssetPath);
EditorUtil.CreateAssetFolder("Assets/" + importAssetPath, fileName);
}
else
{
EditorUtil.CreateAssetFolder("Assets", fileName);
}
string prefabRelPath = (!string.IsNullOrEmpty(importAssetPath)) ? importAssetPath + "/" + fileName : fileName;
string prefabPath = "Assets/" + prefabRelPath;
string prefabName = prefabPath + "/" + fileName.Replace('.', '_') + ".prefab";
string[] texturePaths = loader.ParseTexturePaths(absolutePath);
EditorUtil.CreateAssetFolder(prefabPath, "Textures");
EditorUtil.CreateAssetFolder(prefabPath, "Materials");
string destBasePath = Application.dataPath + "/../" + prefabPath;
foreach (string texPath in texturePaths)
{
string source = texPath;
if (!Path.IsPathRooted(source))
{
source = sourceBasePath + texPath;
}
FileInfo texFileInfo = new FileInfo(source);
string dest = destBasePath + "/Textures/" + texFileInfo.Name;
importMessage = "Copying texture " + source + "...";
File.Copy(source, dest, true);
Debug.LogFormat("Texture {0} copied to {1}", source, dest);
}
AssetDatabase.Refresh();
AssetDatabase.StartAssetEditing();
foreach (string texPath in texturePaths)
{
FileInfo textFileInfo = new FileInfo(texPath);
string texAssetPath = prefabPath + "/Textures/" + textFileInfo.Name;
importMessage = "Importing texture " + texAssetPath + "...";
EditorUtil.SetTextureReadable(texAssetPath);
}
AssetDatabase.SaveAssets();
AssetDatabase.StopAssetEditing();
//File.Copy(basePath+mtlLibName, destBasePath+mtlLibName, true);
//File.Copy(absolutePath, destBasePath+fileName, true);
importMessage = "Updating assets...";
AssetDatabase.Refresh();
Debug.LogFormat("Texture files imported in {0} seconds", Time.realtimeSinceStartup - startTime);
startTime = Time.realtimeSinceStartup;
importMessage = "Loading OBJ file...";
importPhase = ImportPhase.ObjLoad;
loader.altTexPath = prefabPath + "/Textures/";
loader.buildOptions = buildOptions;
yield return(StartCoroutine(loader.Load(newName, absolutePath, parentObject)));
importMessage = "Saving assets...";
AssetDatabase.SaveAssets();
importMessage = "Refreshing assets...";
AssetDatabase.Refresh();
Debug.LogFormat("OBJ files loaded in {0} seconds", Time.realtimeSinceStartup - startTime);
startTime = Time.realtimeSinceStartup;
GameObject loadedObj = Loader.GetModelByPath(absolutePath);
importMessage = "Creating mesh assets...";
importPhase = ImportPhase.AssetBuild;
// TODO: check if the prefab already exists
MeshFilter[] meshFilters = loadedObj.GetComponentsInChildren <MeshFilter>();
foreach (var filter in meshFilters)
{
Mesh mesh = filter.sharedMesh;
if (!AssetDatabase.Contains(mesh))
{
EditorUtil.CreateAssetFolder(prefabPath, "Meshes");
AssetDatabase.CreateAsset(mesh, prefabPath + "/Meshes/" + mesh.name + ".asset");
}
}
importMessage = "Creating material assets...";
AssetDatabase.StartAssetEditing();
MeshRenderer[] meshRend = loadedObj.GetComponentsInChildren <MeshRenderer>();
foreach (var rend in meshRend)
{
Material mtl = rend.sharedMaterial;
if (!AssetDatabase.Contains(mtl))
{
string mtlAssetPath = prefabPath + "/Materials/" + mtl.name + ".mat";
AssetDatabase.CreateAsset(mtl, mtlAssetPath);
}
}
importMessage = "Saving assets...";
AssetDatabase.SaveAssets();
AssetDatabase.StopAssetEditing();
importMessage = "Updating assets...";
AssetDatabase.Refresh();
importMessage = "Creating prefab...";
#if UNITY_2018_3_OR_NEWER
PrefabUtility.SaveAsPrefabAssetAndConnect(loadedObj, prefabName, InteractionMode.AutomatedAction);
#else
PrefabUtility.CreatePrefab(prefabName, loadedObj, ReplacePrefabOptions.ConnectToPrefab);
#endif
//GameObject. objObject.GetComponent<OBJ>();
Debug.LogFormat("Assets created in {0} seconds", Time.realtimeSinceStartup - startTime);
importPhase = ImportPhase.Done;
}
else
{
importPhase = ImportPhase.ObjLoad;
yield return(StartCoroutine(loader.Load(newName, absolutePath, parentObject)));
}
Debug.LogFormat("OBJ files imported in {0} seconds", Time.realtimeSinceStartup - startTotTime);
}
private static void Screenshot()
{
EditorUtil.AutoCaptureScreenshot("AsImpL");
}
/// <summary>
/// Build a Unity Material from MaterialData
/// </summary>
/// <param name="md">material data</param>
/// <returns>Unity material</returns>
private Material BuildMaterial(MaterialData md)
{
string shaderName = "Standard"; // (md.illumType == 2) ? "Standard (Specular setup)" : "Standard";
bool specularMode = false; // (md.specularTex != null);
ModelUtil.MtlBlendMode mode = md.overallAlpha < 1.0f ? ModelUtil.MtlBlendMode.TRANSPARENT : ModelUtil.MtlBlendMode.OPAQUE;
bool useUnlit = buildOptions != null && buildOptions.litDiffuse &&
md.diffuseTex != null &&
md.bumpTex == null &&
md.opacityTex == null &&
md.specularTex == null &&
!md.hasReflectionTex;
bool?diffuseIsTransparent = null;
if (useUnlit)
{
// do not use unlit shader if the texture has transparent pixels
diffuseIsTransparent = ModelUtil.ScanTransparentPixels(md.diffuseTex, ref mode);
}
if (useUnlit && !diffuseIsTransparent.Value)
{
shaderName = "Unlit/Texture";
}
else if (specularMode)
{
shaderName = "Standard (Specular setup)";
}
Material newMaterial = new Material(Shader.Find(shaderName)); // "Standard (Specular setup)"
newMaterial.name = md.materialName;
float shinLog = Mathf.Log(md.shininess, 2);
// get the metallic value from the shininess
float metallic = Mathf.Clamp01(shinLog / 10.0f);
// get the smoothness from the shininess
float smoothness = Mathf.Clamp01(shinLog / 10.0f);
if (specularMode)
{
newMaterial.SetColor("_SpecColor", md.specularColor);
newMaterial.SetFloat("_Shininess", md.shininess / 1000.0f);
//m.color = new Color( md.diffuse.r, md.diffuse.g, md.diffuse.b, md.alpha);
}
else
{
newMaterial.SetFloat("_Metallic", metallic);
//m.SetFloat( "_Glossiness", md.shininess );
}
if (md.diffuseTex != null)
{
// diffuse
if (md.opacityTex != null)
{
// diffuse + opacity:
// update diffuse texture if an opacity map was found
int w = md.diffuseTex.width;
int h = md.diffuseTex.width;
Texture2D albedoTexture = new Texture2D(w, h, TextureFormat.ARGB32, false);
Color col = new Color();
for (int x = 0; x < albedoTexture.width; x++)
{
for (int y = 0; y < albedoTexture.height; y++)
{
col = md.diffuseTex.GetPixel(x, y);
col.a *= md.opacityTex.GetPixel(x, y).grayscale;
// blend diffuse and opacity textures
albedoTexture.SetPixel(x, y, col);
}
}
albedoTexture.name = md.diffuseTexPath;
albedoTexture.Apply();
// mode = ModelUtil.MtlBlendMode.TRANSPARENT;
// The map_d value is multiplied by the d value --> Fade mode
mode = ModelUtil.MtlBlendMode.FADE;
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(alternativeTexPath))
{
string texAssetPath = AssetDatabase.GetAssetPath(md.opacityTex);
if (!string.IsNullOrEmpty(texAssetPath))
{
EditorUtil.SaveAndReimportPngTexture(ref albedoTexture, texAssetPath, "_alpha");
}
}
#endif
newMaterial.SetTexture("_MainTex", albedoTexture);
}
else
{// md.opacityTex == null
// diffuse without opacity: if there are transparent pixels ==> transparent material
if (!diffuseIsTransparent.HasValue)
{
diffuseIsTransparent = ModelUtil.ScanTransparentPixels(md.diffuseTex, ref mode);
}
newMaterial.SetTexture("_MainTex", md.diffuseTex);
}
//Debug.LogFormat("Diffuse set for {0}",m.name);
}
else if (md.opacityTex != null)
{
// opacity without diffuse
//mode = ModelUtil.MtlBlendMode.TRANSPARENT;
mode = ModelUtil.MtlBlendMode.FADE;
int w = md.opacityTex.width;
int h = md.opacityTex.width;
Texture2D albedoTexture = new Texture2D(w, h, TextureFormat.ARGB32, false);
Color col = new Color();
bool detected = false;
for (int x = 0; x < albedoTexture.width; x++)
{
for (int y = 0; y < albedoTexture.height; y++)
{
col = md.diffuseColor;
col.a = md.overallAlpha * md.opacityTex.GetPixel(x, y).grayscale;
ModelUtil.DetectMtlBlendFadeOrCutout(col.a, ref mode, ref detected);
//if (md.alpha == 1.0f && col.a == 0.0f) mode = ModelUtil.MtlBlendMode.CUTOUT;
albedoTexture.SetPixel(x, y, col);
}
}
albedoTexture.name = md.diffuseTexPath;
albedoTexture.Apply();
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(alternativeTexPath))
{
string texAssetPath = AssetDatabase.GetAssetPath(md.opacityTex);
if (!string.IsNullOrEmpty(texAssetPath))
{
EditorUtil.SaveAndReimportPngTexture(ref albedoTexture, texAssetPath, "_op");
}
}
#endif
newMaterial.SetTexture("_MainTex", albedoTexture);
}
md.diffuseColor.a = md.overallAlpha;
newMaterial.SetColor("_Color", md.diffuseColor);
md.emissiveColor.a = md.overallAlpha;
newMaterial.SetColor("_EmissionColor", md.emissiveColor);
if (md.emissiveColor.r > 0 || md.emissiveColor.g > 0 || md.emissiveColor.b > 0)
{
newMaterial.EnableKeyword("_EMISSION");
}
if (md.bumpTex != null)
{
// bump map defined
// TODO: if importing assets do not create a nomal map, change importer settings
// let (improperly) assign a normal map to the bumb map
// if the file name contains a specific tag
// TODO: customize normal map tag
if (md.bumpTexPath.Contains("_normal_map"))
{
newMaterial.EnableKeyword("_NORMALMAP");
newMaterial.SetFloat("_BumpScale", 0.25f); // lower the bump effect with the normal map
newMaterial.SetTexture("_BumpMap", md.bumpTex);
}
else
{
// calculate normal map
Texture2D normalMap = ModelUtil.HeightToNormalMap(md.bumpTex);
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(alternativeTexPath))
{
string texAssetPath = AssetDatabase.GetAssetPath(md.bumpTex);
if (!string.IsNullOrEmpty(texAssetPath))
{
EditorUtil.SaveAndReimportPngTexture(ref normalMap, texAssetPath, "_nm", true);
}
}
else
#endif
{
newMaterial.SetTexture("_BumpMap", normalMap);
//newMaterial.SetTexture("_BumpMap", md.bumpTex);
newMaterial.EnableKeyword("_NORMALMAP");
newMaterial.SetFloat("_BumpScale", 1.0f); // adjust the bump effect with the normal map
}
}
}
if (md.specularTex != null)
{
Texture2D glossTexture = new Texture2D(md.specularTex.width, md.specularTex.height, TextureFormat.ARGB32, false);
Color col = new Color();
float pix = 0.0f;
for (int x = 0; x < glossTexture.width; x++)
{
for (int y = 0; y < glossTexture.height; y++)
{
pix = md.specularTex.GetPixel(x, y).grayscale;
// red = metallic
col.r = metallic * pix;// md.specular.grayscale*pix;
col.g = col.r;
col.b = col.r;
// alpha = smoothness
// if reflecting set maximum smoothness value, else use a precomputed value
if (md.hasReflectionTex)
{
col.a = pix;
}
else
{
col.a = pix * smoothness;
}
glossTexture.SetPixel(x, y, col);
}
}
glossTexture.Apply();
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(alternativeTexPath))
{
string texAssetPath = AssetDatabase.GetAssetPath(md.specularTex);
if (!string.IsNullOrEmpty(texAssetPath))
{
EditorUtil.SaveAndReimportPngTexture(ref glossTexture, texAssetPath, "_spec");
}
}
#endif
if (specularMode)
{
newMaterial.EnableKeyword("_SPECGLOSSMAP");
newMaterial.SetTexture("_SpecGlossMap", glossTexture);
}
else
{
newMaterial.EnableKeyword("_METALLICGLOSSMAP");
newMaterial.SetTexture("_MetallicGlossMap", glossTexture);
}
//m.SetTexture( "_MetallicGlossMap", md.specularLevelTex );
}
// replace the texture with Unity environment reflection
if (md.hasReflectionTex)
{
if (md.overallAlpha < 1.0f)
{
Color col = Color.white;
col.a = md.overallAlpha;
newMaterial.SetColor("_Color", col);
mode = ModelUtil.MtlBlendMode.FADE;
}
// the "amount of" info is missing, using a default value
if (md.specularTex != null)
{
newMaterial.SetFloat("_Metallic", metallic);// 1.0f);
}
// usually the reflection texture is not blurred
newMaterial.SetFloat("_Glossiness", 1.0f);
}
ModelUtil.SetupMaterialWithBlendMode(newMaterial, mode);
//#if UNITY_EDITOR
// if (!string.IsNullOrEmpty(alternateTexPath))
// {
// string path = alternateTexPath + "../Materials/" + m.name + ".mat";
// path = path.Replace("Textures/../", "");
// Debug.LogFormat("Creating material asset in {0}", path);
// AssetDatabase.CreateAsset(m, path);
// m = AssetDatabase.LoadAssetAtPath<Material>(path);
// }
//#endif
return(newMaterial);
}