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);
}
void FromGameObject(GLTFRoot gltf, GameObject go, bool useSparseAccessorForMorphTarget = false, int textureFormat = 0)
{
var bytesBuffer = new ArrayByteBuffer(new byte[50 * 1024 * 1024]);
var bufferIndex = gltf.AddBuffer(bytesBuffer);
GameObject tmpParent = null;
if (go.transform.childCount == 0)
{
tmpParent = new GameObject("tmpParent");
go.transform.SetParent(tmpParent.transform, true);
go = tmpParent;
}
try
{
// exclude root object for the symmetry with the importer
nodes = go.transform.Traverse().Skip(1).ToList();
#region Materials and Textures
materials = nodes.SelectMany(x => x.GetSharedMaterials()).Where(x => x != null).Distinct().ToList();
var unityTextures = materials.SelectMany(x => x.GetTextures()).Where(x => x.Texture != null).Distinct().ToList();
textureManager = new TextureExportManager(unityTextures);
gltf.materials = materials.Select(x => _materialExporter.ExportMaterial(x, textureManager)).ToList();
Debug.Log("image count = " + unityTextures.Count);
for (int i = 0; i < unityTextures.Count; ++i)
{
gltf.ExportTexture(bufferIndex, textureManager.GetExportTexture(i), unityTextures[i].TextureType, textureFormat);
}
#endregion
#region Meshes
var unityMeshes = nodes
.Select(x => new MeshWithRenderer
{
mesh = x.GetSharedMesh(),
rendererer = x.GetComponent <Renderer>(),
})
.Where(x =>
{
if (x.mesh == null)
{
return(false);
}
if (x.rendererer.sharedMaterials == null ||
x.rendererer.sharedMaterials.Length == 0)
{
return(false);
}
return(true);
})
.ToList();
Debug.Log("unityMesher...." + unityMeshes.Count);
_meshExporter.Export(gltf, bufferIndex, unityMeshes, materials, useSparseAccessorForMorphTarget);
meshes = unityMeshes.Select(x => x.mesh).ToList();
#endregion
#region Skins
var unitySkins = nodes
.Select(x => x.GetComponent <SkinnedMeshRenderer>()).Where(x =>
x != null &&
x.bones != null &&
x.bones.Length > 0)
.ToList();
gltf.nodes = nodes.Select(x => ExportNode(x, nodes, unityMeshes.Select(y => y.mesh).ToList(), unitySkins)).ToList();
gltf.scenes = new List <GLTFScene>
{
new GLTFScene
{
nodes = go.transform.GetChildren().Select(x => nodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in unitySkins)
{
var matrices = x.sharedMesh.bindposes.Select(y => y.ReverseZ()).ToArray();
var accessor = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, matrices, GLTFBufferTarget.NONE);
var skin = new GLTFSkin
{
inverseBindMatrices = accessor,
joints = x.bones.Select(y => nodes.IndexOf(y)).ToArray(),
skeleton = nodes.IndexOf(x.rootBone),
};
var skinIndex = gltf.skins.Count;
gltf.skins.Add(skin);
foreach (var z in nodes.Where(y => y.HasComponent(x)))
{
var nodeIndex = nodes.IndexOf(z);
var node = gltf.nodes[nodeIndex];
node.skin = skinIndex;
}
}
#endregion
#if UNITY_EDITOR
#region Animations
var clips = new List <AnimationClip>();
var animator = go.GetComponent <Animator>();
var animation = go.GetComponent <Animation>();
if (animator != null)
{
clips = _animationExporter.GetAnimationClips(animator);
}
else if (animation != null)
{
clips = _animationExporter.GetAnimationClips(animation);
}
if (clips.Any())
{
Debug.Log("export clips.." + clips.Count);
foreach (AnimationClip clip in clips)
{
var animationWithCurve = _animationExporter.Export(clip, go.transform, nodes);
foreach (var kv in animationWithCurve.samplers)
{
var sampler = animationWithCurve.animation.samplers[kv.Key];
var inputAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, kv.Value.input);
sampler.input = inputAccessorIndex;
var outputAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, kv.Value.output);
sampler.output = outputAccessorIndex;
Debug.Log(sampler.interpolation + ">>" + string.Join(",", kv.Value.output));
// 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
}
finally
{
if (tmpParent != null)
{
tmpParent.transform.GetChild(0).SetParent(null);
if (Application.isPlaying)
{
GameObject.Destroy(tmpParent);
}
else
{
GameObject.DestroyImmediate(tmpParent);
}
}
}
}
