public static List <ShaderUsage> GetShaderUsages(out int totalGameObjects)
{
totalGameObjects = 0;
List <ShaderUsage> usages = new List <ShaderUsage>();
string[] guids = AssetDatabase.FindAssets("t: GameObject");
for (int i = 0; i < guids.Length; i++)
{
string assetPath = AssetDatabase.GUIDToAssetPath(guids[i]);
var importer = AssetImporter.GetAtPath(assetPath);
if (importer == null || !(importer is ModelImporter))
{
continue;
}
ModelImporter modelImporter = importer as ModelImporter;
foreach (var kvp in modelImporter.GetExternalObjectMap())
{
if (kvp.Value is Material)
{
Material mat = (kvp.Value as Material);
string shaderName = mat.shader.name;
if (shaderName.Contains("Manual") && !shaderName.EndsWith("Baked") && !shaderName.Contains("ManualSmall"))
{
usages.Add(new ShaderUsage(assetPath, shaderName, mat.name));
}
}
}
totalGameObjects++;
}
return(usages);
}
public static void Remove()
{
ModKitHelper.ClearUnityConsole();
int count = 0;
int total = 0;
string[] guids = AssetDatabase.FindAssets("t: GameObject");
for (int i = 0; i < guids.Length; i++)
{
string assetPath = AssetDatabase.GUIDToAssetPath(guids[i]);
var importer = AssetImporter.GetAtPath(assetPath);
if (importer == null || !(importer is ModelImporter))
{
continue;
}
ModelImporter modelImporter = importer as ModelImporter;
List <AssetImporter.SourceAssetIdentifier> remapsToRemove = new List <AssetImporter.SourceAssetIdentifier>();
foreach (var kvp in modelImporter.GetExternalObjectMap())
{
if (kvp.Value is Material)
{
Material mat = (kvp.Value as Material);
string shaderName = mat.shader.name;
if (shaderName.Contains("Manual") && !shaderName.EndsWith("Baked") && !shaderName.Contains("ManualSmall"))
{
MonoBehaviour.print("Invalid Shader used by " + assetPath + ": " + shaderName + " for material " + mat.name);
remapsToRemove.Add(kvp.Key);
count++;
}
}
}
foreach (var remap in remapsToRemove)
{
modelImporter.RemoveRemap(remap);
AssetDatabase.WriteImportSettingsIfDirty(assetPath);
AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
}
total++;
}
MonoBehaviour.print(count + " out of " + total + " GameObjects used the manual shader.");
}
/// <summary>
/// Clear all externally remapped assets
/// </summary>
/// <remarks>
/// After extracting textures and materials the model importer may maintain a remapping.
/// The model will attempt to reference these assets during reimport, even if they
/// have been deleted.
/// ClearRemappedAssets will remove all map entries for assets that do not exist.
/// </remarks>
/// <param name="force">Remove remap even if external assets exist</param>
public static void ClearRemappedAssets(ModelImporter modelImporter, bool force = false)
{
var externalObjectMap = modelImporter.GetExternalObjectMap();
foreach (var map in externalObjectMap)
{
var identifier = map.Key;
var exists = false;
// PROBLEM: path & guid will be defined even if asset no longer exists.
// SOLUTION: Use filesystem to check asset exists.
var path = AssetDatabase.GetAssetPath(map.Value);
if (!force && path != null && path.StartsWith("Assets/"))
{
path = Application.dataPath + "/" + path.Substring("Assets/".Length);
exists = File.Exists(path);
}
if (!exists)
{
modelImporter.RemoveRemap(identifier);
}
}
}
public override void InvokeDeleteAction(string assetPath)
{
if (Path.GetExtension(assetPath) != ".mat")
{
return;
}
string materialName = Path.GetFileNameWithoutExtension(assetPath).ToLower();
foreach (string modelAssetGUID in AssetDatabase.FindAssets("t:model"))
{
string modelAssetPath = AssetDatabase.GUIDToAssetPath(modelAssetGUID);
ModelImporter modelImporter = (ModelImporter)AssetImporter.GetAtPath(modelAssetPath);
// Check for any meshes that were referencing this material.
Dictionary <AssetImporter.SourceAssetIdentifier, UnityEngine.Object> remappedMaterials = modelImporter.GetExternalObjectMap();
foreach (KeyValuePair <AssetImporter.SourceAssetIdentifier, UnityEngine.Object> entry in remappedMaterials)
{
if (entry.Key.name.ToLower() == materialName)
{
AssetDatabase.ImportAsset(modelAssetPath);
}
}
}
}