private static void ReplaceShaders(GameObject instance, string temporaryPrefabPath)
{
var alreadyDuplicatedMaterials = new Dictionary <Material, Material>();
foreach (var renderer in instance.GetComponentsInChildren <SkinnedMeshRenderer>())
{
renderer.sharedMaterials = renderer.sharedMaterials.Select(material =>
{
if (VRChatToVRMConverter.VRMSupportedShaderNames.Contains(material.shader.name))
{
return(material);
}
if (alreadyDuplicatedMaterials.ContainsKey(material))
{
return(alreadyDuplicatedMaterials[material]);
}
var newMaterial = Object.Instantiate(material);
newMaterial.name = material.name;
var shaderName = material.shader.name.ToLower();
if (shaderName.Contains("unlit"))
{
newMaterial.shader = Shader.Find("UniGLTF/UniUnlit");
}
else if (shaderName.Contains("toon"))
{
newMaterial.shader = Shader.Find("VRM/MToon");
}
newMaterial.renderQueue = material.renderQueue;
return(alreadyDuplicatedMaterials[material]
= Duplicator.CreateObjectToFolder(newMaterial, temporaryPrefabPath));
}).ToArray();
}
}
/// <summary>
/// VRChatアバターインスタンスからVRMインスタンスへ変換します。
/// </summary>
/// <param name="instance">ヒエラルキー上のGameObject。</param>
/// <param name="presetVRChatBindingPairs">各表情への割り当て。</param>
internal static void Convert(
string outputPath,
GameObject instance,
VRMMetaObject meta,
IDictionary <ExpressionPreset, VRChatExpressionBinding> presetVRChatBindingPairs
)
{
GameObject clone = null, normalized = null;
try
{
var rootObjectName = instance.name;
clone = Object.Instantiate(instance);
// 非表示のオブジェクト・コンポーネントを削除
// TODO: アクティブ・非アクティブの切り替えをシェイプキーに変換する
VRChatToVRMConverter.RemoveInactiveObjectsAndDisabledComponents(clone);
// 表情とシェイプキー名の組み合わせを取得
var presetShapeKeyNameWeightPairsPairs = presetVRChatBindingPairs.ToDictionary(
presetVRChatBindingPair => presetVRChatBindingPair.Key,
presetVRChatBindingPair => VRChatExpressionsReplacer.ExtractShapeKeyNames(presetVRChatBindingPair.Value)
);
// VRM設定1
var temporaryFolder = UnityPath.FromUnityPath(VRChatToVRMConverter.TemporaryFolderPath);
temporaryFolder.EnsureFolder();
var temporaryPrefabPath = temporaryFolder.Child(VRChatToVRMConverter.TemporaryPrefabFileName).Value;
VRMInitializer.Initialize(temporaryPrefabPath, clone);
VRChatToVRMConverter.SetFirstPersonOffset(clone);
VRChatToVRMConverter.SetLookAtBoneApplyer(clone);
var sourceAndDestination = clone.GetComponent <Animator>();
if (DynamicBones.IsImported())
{
DynamicBonesToVRMSpringBonesConverter.Convert(
source: sourceAndDestination,
destination: sourceAndDestination
);
VRChatToVRMConverter.RemoveUnusedColliderGroups(clone);
}
// 正規化
normalized = VRMBoneNormalizer.Execute(clone, forceTPose: true);
// 全メッシュ結合
var combinedRenderer = CombineMeshesAndSubMeshes.Combine(
normalized,
notCombineRendererObjectNames: new List <string>(),
destinationObjectName: "vrm-mesh",
savingAsAsset: false
);
// 使用していないシェイプキーの削除
SkinnedMeshUtility.CleanUpShapeKeys(combinedRenderer.sharedMesh, presetShapeKeyNameWeightPairsPairs
.SelectMany(presetShapeKeyNameWeightPairsPair => presetShapeKeyNameWeightPairsPair.Value.Keys)
.Distinct());
// シェイプキーの分離
Utilities.MeshUtility.SeparationProcessing(normalized);
// マテリアルの設定・アセットとして保存
VRChatToVRMConverter.ReplaceShaders(normalized, temporaryPrefabPath);
// GameObject・メッシュなどをアセットとして保存 (アセットとして存在しないと正常にエクスポートできない)
normalized.name = rootObjectName;
var animator = normalized.GetComponent <Animator>();
animator.avatar = Duplicator.CreateObjectToFolder(animator.avatar, temporaryPrefabPath);
meta.name = "Meta";
normalized.GetComponent <VRMMeta>().Meta = Duplicator.CreateObjectToFolder(meta, temporaryPrefabPath);
foreach (var renderer in normalized.GetComponentsInChildren <SkinnedMeshRenderer>())
{
renderer.sharedMesh.name = renderer.name;
renderer.sharedMesh = Duplicator.CreateObjectToFolder(renderer.sharedMesh, temporaryPrefabPath);
}
// VRM設定2
VRChatToVRMConverter.SetFirstPersonRenderers(normalized);
// 表情の設定
VRChatExpressionsReplacer.SetExpressions(normalized, presetShapeKeyNameWeightPairsPairs);
var prefab = PrefabUtility
.SaveAsPrefabAssetAndConnect(normalized, temporaryPrefabPath, InteractionMode.AutomatedAction);
// エクスポート
AssetDatabase.SaveAssets();
File.WriteAllBytes(
outputPath,
VRMEditorExporter.Export(prefab, meta: null, ScriptableObject.CreateInstance <VRMExportSettings>())
);
}
catch (Exception exception)
{
ErrorDialog.Open(exception);
throw;
}
finally
{
if (clone != null)
{
Object.DestroyImmediate(clone);
}
if (normalized != null)
{
Object.DestroyImmediate(normalized);
}
AssetDatabase.DeleteAsset("Assets/VRMConverterTemporary");
}
}