public IEnumerable <Validation> Validate(GameObject ExportRoot)
{
foreach (var info in Meshes)
{
// invalid materials.len
if (info.Materials.Length < info.Mesh.subMeshCount)
{
// submesh より material の方が少ない
yield return(Validation.Error(Messages.MATERIALS_LESS_THAN_SUBMESH_COUNT.Msg()));
}
else
{
if (info.Materials.Length > info.Mesh.subMeshCount)
{
// submesh より material の方が多い
yield return(Validation.Warning(Messages.MATERIALS_GREATER_THAN_SUBMESH_COUNT.Msg()));
}
if (info.Materials.Take(info.Mesh.subMeshCount).Any(x => x == null))
{
// material に null が含まれる(unity で magenta になっているはず)
yield return(Validation.Error($"{info.Renderers}: {Messages.MATERIALS_CONTAINS_NULL.Msg()}"));
}
}
}
foreach (var m in Meshes.GetUniqueMaterials())
{
var gltfMaterial = MaterialValidator.GetGltfMaterialTypeFromUnityShaderName(m.shader.name);
if (string.IsNullOrEmpty(gltfMaterial))
{
yield return(Validation.Warning($"{m}: unknown shader: {m.shader.name} => export as gltf default"));
}
var used = new HashSet <Texture>();
foreach (var(propName, texture) in MaterialValidator.EnumerateTextureProperties(m))
{
if (texture == null)
{
continue;
}
var assetPath = AssetDatabase.GetAssetPath(texture);
if (!string.IsNullOrEmpty(assetPath))
{
if (AssetImporter.GetAtPath(assetPath) is TextureImporter textureImporter)
{
switch (textureImporter.textureType)
{
case TextureImporterType.Default:
case TextureImporterType.NormalMap:
break;
default:
// EditorTextureSerializer throw Exception
// エクスポート未実装
if (used.Add(texture))
{
yield return(Validation.Error($"{texture}: unknown texture type: {textureImporter.textureType}", ValidationContext.Create(texture)));
}
break;
}
}
}
}
yield break;
}
}
public virtual void Export(ITextureSerializer textureSerializer)
{
Nodes = Copy.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
var uniqueUnityMeshes = new MeshExportList();
uniqueUnityMeshes.GetInfo(Nodes, m_settings);
#region Materials and Textures
ReportProgress("Materials and Textures", 0.2f);
Materials = uniqueUnityMeshes.GetUniqueMaterials().ToList();
_textureExporter = new TextureExporter(textureSerializer);
var materialExporter = CreateMaterialExporter();
_gltf.materials = Materials.Select(x => materialExporter.ExportMaterial(x, TextureExporter, m_settings)).ToList();
#endregion
#region Meshes
ReportProgress("Meshes", 0.4f);
MeshBlendShapeIndexMap = new Dictionary <Mesh, Dictionary <int, int> >();
foreach (var unityMesh in uniqueUnityMeshes)
{
if (!unityMesh.CanExport)
{
continue;
}
var(gltfMesh, blendShapeIndexMap) = m_settings.DivideVertexBuffer
? MeshExporter_DividedVertexBuffer.Export(_data, unityMesh, Materials, m_settings.InverseAxis.Create(), m_settings)
: MeshExporter_SharedVertexBuffer.Export(_data, unityMesh, Materials, m_settings.InverseAxis.Create(), m_settings)
;
_gltf.meshes.Add(gltfMesh);
Meshes.Add(unityMesh.Mesh);
if (!MeshBlendShapeIndexMap.ContainsKey(unityMesh.Mesh))
{
// 重複防止
MeshBlendShapeIndexMap.Add(unityMesh.Mesh, blendShapeIndexMap);
}
}
#endregion
#region Nodes and Skins
ReportProgress("Nodes and Skins", 0.8f);
var skins = uniqueUnityMeshes
.SelectMany(x => x.Renderers)
.Where(x => x.Item1 is SkinnedMeshRenderer && x.UniqueBones != null)
.Select(x => x.Item1 as SkinnedMeshRenderer)
.ToList()
;
foreach (var node in Nodes)
{
var gltfNode = ExportNode(node, Nodes, uniqueUnityMeshes, skins);
_gltf.nodes.Add(gltfNode);
}
_gltf.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = Copy.transform.GetChildren().Select(x => Nodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in uniqueUnityMeshes)
{
foreach (var(renderer, uniqueBones) in x.Renderers)
{
if (uniqueBones != null && renderer is SkinnedMeshRenderer smr)
{
var matrices = x.GetBindPoses().Select(m_settings.InverseAxis.Create().InvertMat4).ToArray();
var accessor = _data.ExtendBufferAndGetAccessorIndex(matrices, glBufferTarget.NONE);
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = uniqueBones.Select(y => Nodes.IndexOf(y)).ToArray(),
skeleton = Nodes.IndexOf(smr.rootBone),
};
var skinIndex = _gltf.skins.Count;
_gltf.skins.Add(skin);
foreach (var z in Nodes.Where(y => y.Has(renderer)))
{
var nodeIndex = Nodes.IndexOf(z);
var node = _gltf.nodes[nodeIndex];
node.skin = skinIndex;
}
}
}
}
#endregion
#if UNITY_EDITOR
#region Animations
ReportProgress("Animations", 0.9f);
var clips = new List <AnimationClip>();
var animator = Copy.GetComponent <Animator>();
var animation = Copy.GetComponent <Animation>();
if (animator != null)
{
clips = AnimationExporter.GetAnimationClips(animator);
}
else if (animation != null)
{
clips = AnimationExporter.GetAnimationClips(animation);
}
if (clips.Any())
{
foreach (AnimationClip clip in clips)
{
var animationWithCurve = AnimationExporter.Export(clip, Copy.transform, Nodes);
foreach (var kv in animationWithCurve.SamplerMap)
{
var sampler = animationWithCurve.Animation.samplers[kv.Key];
var inputAccessorIndex = _data.ExtendBufferAndGetAccessorIndex(kv.Value.Input);
sampler.input = inputAccessorIndex;
var outputAccessorIndex = _data.ExtendBufferAndGetAccessorIndex(kv.Value.Output);
sampler.output = outputAccessorIndex;
// modify accessors
var outputAccessor = _gltf.accessors[outputAccessorIndex];
var channel = animationWithCurve.Animation.channels.First(x => x.sampler == kv.Key);
switch (glTFAnimationTarget.GetElementCount(channel.target.path))
{
case 1:
outputAccessor.type = "SCALAR";
//outputAccessor.count = ;
break;
case 3:
outputAccessor.type = "VEC3";
outputAccessor.count /= 3;
break;
case 4:
outputAccessor.type = "VEC4";
outputAccessor.count /= 4;
break;
default:
throw new NotImplementedException();
}
}
animationWithCurve.Animation.name = clip.name;
_gltf.animations.Add(animationWithCurve.Animation);
}
}
#endregion
#endif
ExportExtensions(textureSerializer);
// Extension で Texture が増える場合があるので最後に呼ぶ
var exported = _textureExporter.Export();
for (var exportedTextureIdx = 0; exportedTextureIdx < exported.Count; ++exportedTextureIdx)
{
var(unityTexture, colorSpace) = exported[exportedTextureIdx];
GltfTextureExporter.PushGltfTexture(_data, unityTexture, colorSpace, textureSerializer);
}
FixName(_gltf);
}
public virtual void Export(ITextureSerializer textureSerializer)
{
Nodes = Copy.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
var uniqueUnityMeshes = new MeshExportList();
uniqueUnityMeshes.GetInfo(Nodes, m_settings);
#region Materials and Textures
ReportProgress("Materials and Textures", 0.2f);
Materials = uniqueUnityMeshes.GetUniqueMaterials().ToList();
_textureExporter = new TextureExporter(textureSerializer);
var materialExporter = CreateMaterialExporter();
_gltf.materials = Materials.Select(x => materialExporter.ExportMaterial(x, TextureExporter, m_settings)).ToList();
#endregion
#region Meshes
ReportProgress("Meshes", 0.4f);
MeshBlendShapeIndexMap = new Dictionary <Mesh, Dictionary <int, int> >();
foreach (var unityMesh in uniqueUnityMeshes)
{
if (!unityMesh.CanExport)
{
continue;
}
var(gltfMesh, blendShapeIndexMap) = m_settings.DivideVertexBuffer
? MeshExporter_DividedVertexBuffer.Export(_data, unityMesh, Materials, m_settings.InverseAxis.Create(), m_settings)
: MeshExporter_SharedVertexBuffer.Export(_data, unityMesh, Materials, m_settings.InverseAxis.Create(), m_settings)
;
_gltf.meshes.Add(gltfMesh);
Meshes.Add(unityMesh.Mesh);
if (!MeshBlendShapeIndexMap.ContainsKey(unityMesh.Mesh))
{
// 重複防止
MeshBlendShapeIndexMap.Add(unityMesh.Mesh, blendShapeIndexMap);
}
}
#endregion
#region Nodes and Skins
ReportProgress("Nodes and Skins", 0.8f);
var skins = uniqueUnityMeshes
.SelectMany(x => x.Renderers)
.Where(x => x.Item1 is SkinnedMeshRenderer && x.UniqueBones != null)
.Select(x => x.Item1 as SkinnedMeshRenderer)
.ToList()
;
foreach (var node in Nodes)
{
var gltfNode = ExportNode(node, Nodes, uniqueUnityMeshes, skins);
_gltf.nodes.Add(gltfNode);
}
_gltf.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = Copy.transform.GetChildren().Select(x => Nodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in uniqueUnityMeshes)
{
foreach (var(renderer, uniqueBones) in x.Renderers)
{
if (uniqueBones != null && renderer is SkinnedMeshRenderer smr)
{
var matrices = x.GetBindPoses().Select(m_settings.InverseAxis.Create().InvertMat4).ToArray();
var accessor = _data.ExtendBufferAndGetAccessorIndex(matrices, glBufferTarget.NONE);
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = uniqueBones.Select(y => Nodes.IndexOf(y)).ToArray(),
skeleton = Nodes.IndexOf(smr.rootBone),
};
var skinIndex = _gltf.skins.Count;
_gltf.skins.Add(skin);
foreach (var z in Nodes.Where(y => y.Has(renderer)))
{
var nodeIndex = Nodes.IndexOf(z);
var node = _gltf.nodes[nodeIndex];
node.skin = skinIndex;
}
}
}
}
#endregion
if (m_animationExporter != null)
{
ReportProgress("Animations", 0.9f);
m_animationExporter.Export(_data, Copy, Nodes);
}
ExportExtensions(textureSerializer);
// Extension で Texture が増える場合があるので最後に呼ぶ
var exported = _textureExporter.Export();
for (var exportedTextureIdx = 0; exportedTextureIdx < exported.Count; ++exportedTextureIdx)
{
var(unityTexture, colorSpace) = exported[exportedTextureIdx];
GltfTextureExporter.PushGltfTexture(_data, unityTexture, colorSpace, textureSerializer);
}
FixName(_gltf);
}