public ExportingGltfData(int reserved = default)
{
if (reserved == 0)
{
reserved = 50 * 1024 * 1024;
}
// buffers[0] is export target
Gltf.buffers.Add(new glTFBuffer());
_buffer = new ArrayByteBuffer(new byte[reserved]);
}
public void DividedVertexBufferTest()
{
var glTF = new glTF();
var bytesBuffer = new ArrayByteBuffer(new byte[50 * 1024 * 1024]);
var bufferIndex = glTF.AddBuffer(bytesBuffer);
var Materials = new List <Material> {
new Material(Shader.Find("Standard")), // A
new Material(Shader.Find("Standard")), // B
};
var(go, mesh) = CreateMesh(Materials.ToArray());
var meshExportSettings = new GltfExportSettings
{
DivideVertexBuffer = true
};
var axisInverter = Axes.X.Create();
var unityMesh = MeshExportList.Create(go);
var(gltfMesh, blendShapeIndexMap) = meshExportSettings.DivideVertexBuffer
? MeshExporter_DividedVertexBuffer.Export(glTF, bufferIndex, unityMesh, Materials, axisInverter, meshExportSettings)
: MeshExporter_SharedVertexBuffer.Export(glTF, bufferIndex, unityMesh, Materials, axisInverter, meshExportSettings)
;
{
var indices = glTF.GetIndices(gltfMesh.primitives[0].indices);
Assert.AreEqual(0, indices[0]);
Assert.AreEqual(1, indices[1]);
Assert.AreEqual(3, indices[2]);
Assert.AreEqual(3, indices[3]);
Assert.AreEqual(1, indices[4]);
Assert.AreEqual(2, indices[5]);
}
{
var positions = glTF.GetArrayFromAccessor <Vector3>(gltfMesh.primitives[0].attributes.POSITION);
Assert.AreEqual(4, positions.Length);
}
{
var indices = glTF.GetIndices(gltfMesh.primitives[1].indices);
Assert.AreEqual(0, indices[0]);
Assert.AreEqual(1, indices[1]);
Assert.AreEqual(3, indices[2]);
Assert.AreEqual(3, indices[3]);
Assert.AreEqual(1, indices[4]);
Assert.AreEqual(2, indices[5]);
}
{
var positions = glTF.GetArrayFromAccessor <Vector3>(gltfMesh.primitives[1].attributes.POSITION);
Assert.AreEqual(4, positions.Length);
}
}
void BufferTest(int init, params int[] size)
{
var initBytes = init == 0 ? null : new byte[init];
var storage = new ArrayByteBuffer(initBytes);
var buffer = new glTFBuffer(storage);
var values = new List <byte>();
int offset = 0;
foreach (var x in size)
{
var nums = Enumerable.Range(offset, x).Select(y => (Byte)y).ToArray();
values.AddRange(nums);
var bytes = new ArraySegment <Byte>(nums);
offset += x;
buffer.Append(bytes, glBufferTarget.NONE);
}
Assert.AreEqual(values.Count, buffer.byteLength);
Assert.True(Enumerable.SequenceEqual(values, buffer.GetBytes().ToArray()));
}
void BufferTest(int init, params int[] size)
{
var initBytes = init == 0 ? null : new byte[init];
var storage = new ArrayByteBuffer(initBytes);
var data = new ExportingGltfData();
// var buffer = new glTFBuffer(storage);
var values = new List <byte>();
int offset = 0;
foreach (var x in size)
{
var nums = Enumerable.Range(offset, x).Select(y => (Byte)y).ToArray();
values.AddRange(nums);
var bytes = new ArraySegment <Byte>(nums);
offset += x;
data.ExtendBufferAndGetView(bytes, glBufferTarget.NONE);
}
Assert.AreEqual(values.Count, data.GLTF.buffers[0].byteLength);
Assert.True(Enumerable.SequenceEqual(values, data.BinBytes.ToArray()));
}
public void FromGameObject(glTF gltf, GameObject go, bool useSparseAccessorForMorphTarget = false)
{
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
{
Nodes = go.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
#region Materials and Textures
Materials = Nodes.SelectMany(x => x.GetSharedMaterials()).Where(x => x != null).Distinct().ToList();
var unityTextures = Materials.SelectMany(x => TextureIO.GetTextures(x)).Where(x => x.Texture != null).Distinct().ToList();
List <Texture> exportTextures = null;
Textures = unityTextures.Select(y => y.Texture).ToList();
var materialExporter = CreateMaterialExporter();
gltf.materials = Materials.Select(x => materialExporter.ExportMaterial(x, Textures, out exportTextures)).ToList();
for (int i = 0; i < unityTextures.Count; ++i)
{
var unityTexture = unityTextures[i];
TextureIO.ExportTexture(gltf, bufferIndex, exportTextures[i], unityTexture.TextureType);
}
#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();
ExportMeshes(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, glBufferTarget.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.Has(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())
{
foreach (AnimationClip clip in clips)
{
var animationWithCurve = AnimationExporter.Export(clip, go.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 = 1;
break;
case 3:
outputAccessor.type = "VEC3";
outputAccessor.count /= 3;
break;
case 4:
outputAccessor.type = "VEC4";
outputAccessor.count /= 4;
break;
default:
throw new NotImplementedException();
}
}
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);
}
}
}
}
public static Exported FromGameObject(glTF gltf, GameObject go, bool useSparseAccessorForMorphTarget = false)
{
var bytesBuffer = new ArrayByteBuffer(new byte[50 * 1024 * 1024]);
var bufferIndex = gltf.AddBuffer(bytesBuffer);
if (go.transform.childCount == 0)
{
throw new UniGLTFException("root node required");
}
var unityNodes = go.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
#region Material
var unityMaterials = unityNodes.SelectMany(x => x.GetSharedMaterials()).Where(x => x != null).Distinct().ToList();
var unityTextures = unityMaterials.SelectMany(x => x.GetTextures()).Where(x => x != null).Distinct().ToList();
for (int i = 0; i < unityTextures.Count; ++i)
{
var texture = unityTextures[i];
ExportTexture(gltf, bufferIndex, texture);
}
gltf.materials = unityMaterials.Select(x => ExportMaterial(x, unityTextures)).ToList();
#endregion
#region Meshes
var unityMeshes = unityNodes
.Select(x => new MeshWithRenderer
{
Mesh = x.GetSharedMesh(),
Rendererer = x.GetComponent <Renderer>(),
})
.Where(x => x.Mesh != null)
.ToList();
ExportMeshes(gltf, bufferIndex, unityMeshes, unityMaterials, useSparseAccessorForMorphTarget);
#endregion
#region Skins
var unitySkins = unityNodes
.Select(x => x.GetComponent <SkinnedMeshRenderer>()).Where(x => x != null)
.ToList();
gltf.nodes = unityNodes.Select(x => ExportNode(x, unityNodes, unityMeshes.Select(y => y.Mesh).ToList(), unitySkins)).ToList();
gltf.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = go.transform.GetChildren().Select(x => unityNodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in unitySkins)
{
var matrices = x.sharedMesh.bindposes.Select(y => y.ReverseZ()).ToArray();
var accessor = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, matrices, glBufferTarget.NONE);
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = x.bones.Select(y => unityNodes.IndexOf(y)).ToArray(),
skeleton = unityNodes.IndexOf(x.rootBone),
};
var skinIndex = gltf.skins.Count;
gltf.skins.Add(skin);
foreach (var z in unityNodes.Where(y => y.Has(x)))
{
var nodeIndex = unityNodes.IndexOf(z);
var node = gltf.nodes[nodeIndex];
node.skin = skinIndex;
node.extras.skinRootBone = unityNodes.IndexOf(x.rootBone);
}
}
#endregion
#if UNITY_EDITOR
#region Animations
var animation = go.GetComponent <Animation>();
if (animation != null)
{
foreach (AnimationState state in animation)
{
var animationWithCurve = ExportAnimation(state.clip, go.transform, unityNodes);
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 3:
outputAccessor.type = "VEC3";
outputAccessor.count /= 3;
break;
case 4:
outputAccessor.type = "VEC4";
outputAccessor.count /= 4;
break;
default:
throw new NotImplementedException();
}
}
gltf.animations.Add(animationWithCurve.Animation);
}
}
#endregion
#endif
return(new Exported
{
Meshes = unityMeshes,
Nodes = unityNodes.Select(x => x.transform).ToList(),
Materials = unityMaterials,
Textures = unityTextures,
});
}
public static Exported FromGameObject(glTF gltf, GameObject go)
{
var bytesBuffer = new ArrayByteBuffer();
var bufferIndex = gltf.AddBuffer(bytesBuffer);
var unityNodes = go.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
#region Material
var unityMaterials = unityNodes.SelectMany(x => x.GetSharedMaterials()).Where(x => x != null).Distinct().ToList();
var unityTextures = unityMaterials.SelectMany(x => x.GetTextures()).Where(x => x != null).Distinct().ToList();
for (int i = 0; i < unityTextures.Count; ++i)
{
var texture = unityTextures[i];
var bytesWithPath = new BytesWithPath(texture);;
// add view
var view = gltf.buffers[bufferIndex].Storage.Extend(bytesWithPath.Bytes, glBufferTarget.NONE);
var viewIndex = gltf.AddBufferView(view);
// add image
var imageIndex = gltf.images.Count;
gltf.images.Add(new glTFImage
{
bufferView = viewIndex,
mimeType = bytesWithPath.Mime,
});
// add sampler
var filter = default(glFilter);
switch (texture.filterMode)
{
case FilterMode.Point:
filter = glFilter.NEAREST;
break;
default:
filter = glFilter.LINEAR;
break;
}
var wrap = default(glWrap);
switch (texture.wrapMode)
{
case TextureWrapMode.Clamp:
wrap = glWrap.CLAMP_TO_EDGE;
break;
case TextureWrapMode.Repeat:
wrap = glWrap.REPEAT;
break;
#if UNITY_2017_OR_NEWER
case TextureWrapMode.Mirror:
wrap = glWrap.MIRRORED_REPEAT;
break;
#endif
default:
throw new NotImplementedException();
}
var samplerIndex = gltf.samplers.Count;
gltf.samplers.Add(new glTFTextureSampler
{
magFilter = filter,
minFilter = filter,
wrapS = wrap,
wrapT = wrap,
});
// add texture
gltf.textures.Add(new glTFTexture
{
sampler = samplerIndex,
source = imageIndex,
});
}
gltf.materials = unityMaterials.Select(x => ExportMaterial(x, unityTextures)).ToList();
#endregion
#region Meshes
var unityMeshes = unityNodes
.Select(x => new MeshWithRenderer
{
Mesh = x.GetSharedMesh(),
Rendererer = x.GetComponent <Renderer>(),
})
.Where(x => x.Mesh != null)
.ToList();
for (int i = 0; i < unityMeshes.Count; ++i)
{
var x = unityMeshes[i];
var mesh = x.Mesh;
var materials = x.Rendererer.sharedMaterials;
var positions = mesh.vertices.Select(y => y.ReverseZ()).ToArray();
var positionAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, positions, glBufferTarget.ARRAY_BUFFER);
gltf.accessors[positionAccessorIndex].min = positions.Aggregate(positions[0], (a, b) => new Vector3(Mathf.Min(a.x, b.x), Math.Min(a.y, b.y), Mathf.Min(a.z, b.z))).ToArray();
gltf.accessors[positionAccessorIndex].max = positions.Aggregate(positions[0], (a, b) => new Vector3(Mathf.Max(a.x, b.x), Math.Max(a.y, b.y), Mathf.Max(a.z, b.z))).ToArray();
var normalAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.normals.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var colorAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.colors.Select(y => (Vector4)y).ToArray(), glBufferTarget.ARRAY_BUFFER);
var uvAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseY()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var boneweights = mesh.boneWeights;
var weightAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, boneweights.Select(y => new Vector4(y.weight0, y.weight1, y.weight2, y.weight3)).ToArray(), glBufferTarget.ARRAY_BUFFER);
var jointsAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, boneweights.Select(y => new UShort4((ushort)y.boneIndex0, (ushort)y.boneIndex1, (ushort)y.boneIndex2, (ushort)y.boneIndex3)).ToArray(), glBufferTarget.ARRAY_BUFFER);
var attributes = new glTFAttributes
{
POSITION = positionAccessorIndex,
};
if (normalAccessorIndex != -1)
{
attributes.NORMAL = normalAccessorIndex;
}
if (tangentAccessorIndex != -1)
{
attributes.TANGENT = tangentAccessorIndex;
}
if (colorAccessorIndex != -1)
{
attributes.COLOR_0 = colorAccessorIndex;
}
if (uvAccessorIndex != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex;
}
if (weightAccessorIndex != -1)
{
attributes.WEIGHTS_0 = weightAccessorIndex;
}
if (jointsAccessorIndex != -1)
{
attributes.JOINTS_0 = jointsAccessorIndex;
}
gltf.meshes.Add(new glTFMesh(mesh.name));
for (int j = 0; j < mesh.subMeshCount; ++j)
{
var indices = TriangleUtil.FlipTriangle(mesh.GetIndices(j)).Select(y => (uint)y).ToArray();
var indicesAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, indices, glBufferTarget.ELEMENT_ARRAY_BUFFER);
gltf.meshes.Last().primitives.Add(new glTFPrimitives
{
attributes = attributes,
indices = indicesAccessorIndex,
mode = 4, // triangels ?
//material = unityMaterials.IndexOf(materials[j])
material = unityMaterials.IndexOf(materials[0]) // JIA change for Maquette image entity
});
}
if (mesh.blendShapeCount > 0)
{
for (int j = 0; j < mesh.blendShapeCount; ++j)
{
var blendShapeVertices = mesh.vertices;
var blendShpaeNormals = mesh.normals;
var blendShapeTangents = mesh.tangents.Select(y => (Vector3)y).ToArray();
var blendShapeColors = mesh.colors.Select(y => (Vector4)y).ToArray();
var k = mesh.GetBlendShapeFrameCount(j);
mesh.GetBlendShapeFrameVertices(j, k - 1, blendShapeVertices, blendShpaeNormals, null);
var blendShapePositionAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeVertices.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var blendShapeNormalAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShpaeNormals.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var blendShapeTangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeTangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var blendShapeColorAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeColors.ToArray(), glBufferTarget.ARRAY_BUFFER);
//
// first primitive has whole blendShape
//
gltf.meshes.Last().primitives[0].targets.Add(new glTFAttributes
{
POSITION = blendShapePositionAccessorIndex,
NORMAL = blendShapeNormalAccessorIndex,
TANGENT = blendShapeTangentAccessorIndex,
COLOR_0 = blendShapeColorAccessorIndex,
});
}
}
}
#endregion
#region Skins
var unitySkins = unityNodes
.Select(x => x.GetComponent <SkinnedMeshRenderer>()).Where(x => x != null)
.ToList();
gltf.nodes = unityNodes.Select(x => ExportNode(x, unityNodes, unityMeshes.Select(y => y.Mesh).ToList(), unitySkins)).ToList();
gltf.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = go.transform.GetChildren().Select(x => unityNodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in unitySkins)
{
var matrices = x.sharedMesh.bindposes.Select(y => y.ReverseZ()).ToArray();
var accessor = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, matrices, glBufferTarget.NONE);
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = x.bones.Select(y => unityNodes.IndexOf(y)).ToArray(),
skeleton = unityNodes.IndexOf(x.rootBone),
};
var skinIndex = gltf.skins.Count;
gltf.skins.Add(skin);
foreach (var z in unityNodes.Where(y => y.Has(x)))
{
var nodeIndex = unityNodes.IndexOf(z);
gltf.nodes[nodeIndex].skin = skinIndex;
}
}
#endregion
#if UNITY_EDITOR
#region Animations
var animation = go.GetComponent <Animation>();
if (animation != null)
{
foreach (AnimationState state in animation)
{
var animationWithCurve = ExportAnimation(state.clip, go.transform, unityNodes);
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 3:
outputAccessor.type = "VEC3";
outputAccessor.count /= 3;
break;
case 4:
outputAccessor.type = "VEC4";
outputAccessor.count /= 4;
break;
default:
throw new NotImplementedException();
}
}
gltf.animations.Add(animationWithCurve.Animation);
}
}
#endregion
#endif
// glb buffer
gltf.buffers[bufferIndex].UpdateByteLength();
return(new Exported
{
Meshes = unityMeshes,
Nodes = unityNodes.Select(x => x.transform).ToList(),
Materials = unityMaterials,
Textures = unityTextures,
});
}
public virtual void Export(MeshExportSettings 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 unityMeshes = MeshWithRenderer.FromNodes(Nodes).Where(x => x.Mesh.vertices.Any()).ToList();
var uniqueUnityMeshes = new List <MeshWithRenderer>();
foreach (var um in unityMeshes)
{
if (!uniqueUnityMeshes.Any(x => x.IsSameMeshAndMaterials(um)))
{
uniqueUnityMeshes.Add(um);
}
}
#region Materials and Textures
Materials = uniqueUnityMeshes.SelectMany(x => x.Renderer.sharedMaterials).Where(x => x != null).Distinct().ToList();
TextureExporter = new TextureExporter(textureSerializer);
var materialExporter = CreateMaterialExporter();
glTF.materials = Materials.Select(x => materialExporter.ExportMaterial(x, TextureExporter)).ToList();
#endregion
#region Meshes
MeshBlendShapeIndexMap = new Dictionary <Mesh, Dictionary <int, int> >();
foreach (var unityMesh in uniqueUnityMeshes)
{
var(gltfMesh, blendShapeIndexMap) = MeshExporter.ExportMesh(glTF, bufferIndex, unityMesh, Materials, meshExportSettings, m_axisInverter);
glTF.meshes.Add(gltfMesh);
Meshes.Add(unityMesh.Mesh);
if (!MeshBlendShapeIndexMap.ContainsKey(unityMesh.Mesh))
{
// 同じmeshが複数回現れた
MeshBlendShapeIndexMap.Add(unityMesh.Mesh, blendShapeIndexMap);
}
}
#endregion
#region Nodes and Skins
var unitySkins = uniqueUnityMeshes
.Where(x => x.UniqueBones != null)
.ToList();
glTF.nodes = Nodes.Select(x => ExportNode(x, Nodes, uniqueUnityMeshes, unitySkins.Select(y => y.Renderer as SkinnedMeshRenderer).ToList())).ToList();
glTF.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = Copy.transform.GetChildren().Select(x => Nodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in unitySkins)
{
var matrices = x.GetBindPoses().Select(m_axisInverter.InvertMat4).ToArray();
var accessor = glTF.ExtendBufferAndGetAccessorIndex(bufferIndex, matrices, glBufferTarget.NONE);
var renderer = x.Renderer as SkinnedMeshRenderer;
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = x.UniqueBones.Select(y => Nodes.IndexOf(y)).ToArray(),
skeleton = Nodes.IndexOf(renderer.rootBone),
};
var skinIndex = glTF.skins.Count;
glTF.skins.Add(skin);
foreach (var z in Nodes.Where(y => y.Has(x.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
for (int i = 0; i < TextureExporter.Exported.Count; ++i)
{
var(unityTexture, colorSpace) = TextureExporter.Exported[i];
glTF.PushGltfTexture(bufferIndex, unityTexture, colorSpace, textureSerializer);
}
}
public virtual void Export(MeshExportSettings meshExportSettings)
{
var bytesBuffer = new ArrayByteBuffer(new byte[50 * 1024 * 1024]);
var bufferIndex = glTF.AddBuffer(bytesBuffer);
GameObject tmpParent = null;
if (Copy.transform.childCount == 0)
{
tmpParent = new GameObject("tmpParent");
Copy.transform.SetParent(tmpParent.transform, true);
Copy = tmpParent;
}
try
{
Nodes = Copy.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
#region Materials and Textures
Materials = Nodes.SelectMany(x => x.GetSharedMaterials()).Where(x => x != null).Distinct().ToList();
var unityTextures = Materials.SelectMany(x => TextureIO.GetTextures(x)).Where(x => x.Texture != null).Distinct().ToList();
TextureManager = new TextureExportManager(unityTextures.Select(x => x.Texture));
var materialExporter = CreateMaterialExporter();
glTF.materials = Materials.Select(x => materialExporter.ExportMaterial(x, TextureManager)).ToList();
for (int i = 0; i < unityTextures.Count; ++i)
{
var unityTexture = unityTextures[i];
TextureIO.ExportTexture(glTF, bufferIndex, TextureManager.GetExportTexture(i), unityTexture.TextureType);
}
#endregion
#region Meshes
var unityMeshes = MeshWithRenderer.FromNodes(Nodes).ToList();
MeshBlendShapeIndexMap = new Dictionary <Mesh, Dictionary <int, int> >();
foreach (var(mesh, gltfMesh, blendShapeIndexMap) in MeshExporter.ExportMeshes(
glTF, bufferIndex, unityMeshes, Materials, meshExportSettings))
{
glTF.meshes.Add(gltfMesh);
if (!MeshBlendShapeIndexMap.ContainsKey(mesh))
{
// 同じmeshが複数回現れた
MeshBlendShapeIndexMap.Add(mesh, blendShapeIndexMap);
}
}
Meshes = unityMeshes.Select(x => x.Mesh).ToList();
#endregion
#region Nodes and Skins
var unitySkins = unityMeshes
.Where(x => x.UniqueBones != null)
.ToList();
glTF.nodes = Nodes.Select(x => ExportNode(x, Nodes, unityMeshes.Select(y => y.Renderer).ToList(), unitySkins.Select(y => y.Renderer as SkinnedMeshRenderer).ToList())).ToList();
glTF.scenes = new List <gltfScene>
{
new gltfScene
{
nodes = Copy.transform.GetChildren().Select(x => Nodes.IndexOf(x)).ToArray(),
}
};
foreach (var x in unitySkins)
{
var matrices = x.GetBindPoses().Select(y => y.ReverseZ()).ToArray();
var accessor = glTF.ExtendBufferAndGetAccessorIndex(bufferIndex, matrices, glBufferTarget.NONE);
var renderer = x.Renderer as SkinnedMeshRenderer;
var skin = new glTFSkin
{
inverseBindMatrices = accessor,
joints = x.UniqueBones.Select(y => Nodes.IndexOf(y)).ToArray(),
skeleton = Nodes.IndexOf(renderer.rootBone),
};
var skinIndex = glTF.skins.Count;
glTF.skins.Add(skin);
foreach (var z in Nodes.Where(y => y.Has(x.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
}
finally
{
if (tmpParent != null)
{
tmpParent.transform.GetChild(0).SetParent(null);
if (Application.isPlaying)
{
GameObject.Destroy(tmpParent);
}
else
{
GameObject.DestroyImmediate(tmpParent);
}
}
}
}
