public void SetRoot(GameObject ExportRoot, GltfExportSettings settings, IBlendShapeExportFilter blendShapeFilter)
{
if (ExportRoot == null)
{
return;
}
MeshExportInfo.GetInfo(ExportRoot.transform.Traverse().Skip(1), Meshes, settings);
foreach (var info in Meshes)
{
info.CalcMeshSize(ExportRoot, info.Renderers[0].Item1, settings, blendShapeFilter);
}
}
public virtual void Export(GltfExportSettings meshExportSettings, ITextureSerializer textureSerializer)
{
var bytesBuffer = new ArrayByteBuffer(new byte[50 * 1024 * 1024]);
var bufferIndex = glTF.AddBuffer(bytesBuffer);
Nodes = Copy.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
var uniqueUnityMeshes = new List <MeshExportInfo>();
MeshExportInfo.GetInfo(Nodes, uniqueUnityMeshes, meshExportSettings);
#region Materials and Textures
Materials = uniqueUnityMeshes.SelectMany(x => x.Materials).Where(x => x != null).Distinct().ToList();
m_textureExporter = new TextureExporter(textureSerializer);
var materialExporter = CreateMaterialExporter();
glTF.materials = Materials.Select(x => materialExporter.ExportMaterial(x, TextureExporter, m_settings)).ToList();
#endregion
#region Meshes
MeshBlendShapeIndexMap = new Dictionary <Mesh, Dictionary <int, int> >();
foreach (var unityMesh in uniqueUnityMeshes)
{
var(gltfMesh, blendShapeIndexMap) = meshExportSettings.DivideVertexBuffer
? MeshExporter_DividedVertexBuffer.Export(glTF, bufferIndex, unityMesh, Materials, m_settings.InverseAxis.Create(), meshExportSettings)
: MeshExporter_SharedVertexBuffer.Export(glTF, bufferIndex, unityMesh, Materials, m_settings.InverseAxis.Create(), meshExportSettings)
;
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
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 = glTF.ExtendBufferAndGetAccessorIndex(bufferIndex, 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
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 = glTF.ExtendBufferAndGetAccessorIndex(bufferIndex, kv.Value.Input);
sampler.input = inputAccessorIndex;
var outputAccessorIndex = glTF.ExtendBufferAndGetAccessorIndex(bufferIndex, 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 = m_textureExporter.Export();
for (var exportedTextureIdx = 0; exportedTextureIdx < exported.Count; ++exportedTextureIdx)
{
var(unityTexture, colorSpace) = exported[exportedTextureIdx];
glTF.PushGltfTexture(bufferIndex, unityTexture, colorSpace, textureSerializer);
}
FixName(glTF);
}
