public static async Awaitable <Material> CreateAsync(glTF gltf, int i, GetTextureAsyncFunc getTexture, bool hasVertexColor)
{
if (getTexture == null)
{
getTexture = (_x, _y) => Awaitable.FromResult <Texture2D>(default);
public static IEnumerable <(Mesh, glTFMesh, Dictionary <int, int>)> ExportMeshes(glTF gltf, int bufferIndex,
List <MeshWithRenderer> unityMeshes, List <Material> unityMaterials,
MeshExportSettings settings)
{
foreach (var unityMesh in unityMeshes)
{
var gltfMesh = ExportPrimitives(gltf, bufferIndex,
unityMesh, unityMaterials);
var targetNames = new List <string>();
var blendShapeIndexMap = new Dictionary <int, int>();
int exportBlendShapes = 0;
for (int j = 0; j < unityMesh.Mesh.blendShapeCount; ++j)
{
var morphTarget = ExportMorphTarget(gltf, bufferIndex,
unityMesh.Mesh, j,
settings.UseSparseAccessorForMorphTarget,
settings.ExportOnlyBlendShapePosition);
if (morphTarget.POSITION < 0 && morphTarget.NORMAL < 0 && morphTarget.TANGENT < 0)
{
continue;
}
// maybe skip
var blendShapeName = unityMesh.Mesh.GetBlendShapeName(j);
blendShapeIndexMap.Add(j, exportBlendShapes++);
targetNames.Add(blendShapeName);
//
// all primitive has same blendShape
//
for (int k = 0; k < gltfMesh.primitives.Count; ++k)
{
gltfMesh.primitives[k].targets.Add(morphTarget);
}
}
gltf_mesh_extras_targetNames.Serialize(gltfMesh, targetNames);
yield return(unityMesh.Mesh, gltfMesh, blendShapeIndexMap);
}
}
static glTFMesh ExportPrimitives(glTF gltf, int bufferIndex,
Mesh mesh, Material[] materials,
List <Material> unityMaterials)
{
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 uvAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseY()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var colorAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.colors, 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 (uvAccessorIndex != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex;
}
if (colorAccessorIndex != -1)
{
attributes.COLOR_0 = colorAccessorIndex;
}
if (weightAccessorIndex != -1)
{
attributes.WEIGHTS_0 = weightAccessorIndex;
}
if (jointsAccessorIndex != -1)
{
attributes.JOINTS_0 = jointsAccessorIndex;
}
var gltfMesh = 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);
gltfMesh.primitives.Add(new glTFPrimitives
{
attributes = attributes,
indices = indicesAccessorIndex,
mode = 4, // triangels ?
material = unityMaterials.IndexOf(materials[j])
});
}
return(gltfMesh);
}
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,
});
}
static gltfMorphTarget ExportMorphTarget(glTF gltf, int bufferIndex,
Mesh mesh, int j,
bool useSparseAccessorForMorphTarget,
bool exportOnlyBlendShapePosition)
{
var blendShapeVertices = mesh.vertices;
var usePosition = blendShapeVertices != null && blendShapeVertices.Length > 0;
var blendShapeNormals = mesh.normals;
var useNormal = usePosition && blendShapeNormals != null && blendShapeNormals.Length == blendShapeVertices.Length;
// var useNormal = usePosition && blendShapeNormals != null && blendShapeNormals.Length == blendShapeVertices.Length && !exportOnlyBlendShapePosition;
var blendShapeTangents = mesh.tangents.Select(y => (Vector3)y).ToArray();
//var useTangent = usePosition && blendShapeTangents != null && blendShapeTangents.Length == blendShapeVertices.Length;
var useTangent = false;
var frameCount = mesh.GetBlendShapeFrameCount(j);
mesh.GetBlendShapeFrameVertices(j, frameCount - 1, blendShapeVertices, blendShapeNormals, null);
var blendShapePositionAccessorIndex = -1;
var blendShapeNormalAccessorIndex = -1;
var blendShapeTangentAccessorIndex = -1;
if (useSparseAccessorForMorphTarget)
{
var accessorCount = blendShapeVertices.Length;
var sparseIndices = Enumerable.Range(0, blendShapeVertices.Length)
.Where(x => UseSparse(
usePosition, blendShapeVertices[x],
useNormal, blendShapeNormals[x],
useTangent, blendShapeTangents[x]))
.ToArray()
;
if (sparseIndices.Length == 0)
{
usePosition = false;
useNormal = false;
useTangent = false;
}
else
{
Debug.LogFormat("Sparse {0}/{1}", sparseIndices.Length, mesh.vertexCount);
}
/*
* var vertexSize = 12;
* if (useNormal) vertexSize += 12;
* if (useTangent) vertexSize += 24;
* var sparseBytes = (4 + vertexSize) * sparseIndices.Length;
* var fullBytes = (vertexSize) * blendShapeVertices.Length;
* Debug.LogFormat("Export sparse: {0}/{1}bytes({2}%)",
* sparseBytes, fullBytes, (int)((float)sparseBytes / fullBytes)
* );
*/
var sparseIndicesViewIndex = -1;
if (usePosition)
{
sparseIndicesViewIndex = gltf.ExtendBufferAndGetViewIndex(bufferIndex, sparseIndices);
blendShapeVertices = sparseIndices.Select(x => blendShapeVertices[x].ReverseZ()).ToArray();
blendShapePositionAccessorIndex = gltf.ExtendSparseBufferAndGetAccessorIndex(bufferIndex, accessorCount,
blendShapeVertices,
sparseIndices, sparseIndicesViewIndex,
glBufferTarget.NONE);
}
if (useNormal)
{
blendShapeNormals = sparseIndices.Select(x => blendShapeNormals[x].ReverseZ()).ToArray();
blendShapeNormalAccessorIndex = gltf.ExtendSparseBufferAndGetAccessorIndex(bufferIndex, accessorCount,
blendShapeNormals,
sparseIndices, sparseIndicesViewIndex,
glBufferTarget.NONE);
}
if (useTangent)
{
blendShapeTangents = sparseIndices.Select(x => blendShapeTangents[x].ReverseZ()).ToArray();
blendShapeTangentAccessorIndex = gltf.ExtendSparseBufferAndGetAccessorIndex(bufferIndex, accessorCount,
blendShapeTangents, sparseIndices, sparseIndicesViewIndex,
glBufferTarget.NONE);
}
}
else
{
for (int i = 0; i < blendShapeVertices.Length; ++i)
{
blendShapeVertices[i] = blendShapeVertices[i].ReverseZ();
}
if (usePosition)
{
blendShapePositionAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeVertices,
glBufferTarget.ARRAY_BUFFER);
}
if (useNormal)
{
for (int i = 0; i < blendShapeNormals.Length; ++i)
{
blendShapeNormals[i] = blendShapeNormals[i].ReverseZ();
}
blendShapeNormalAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeNormals,
glBufferTarget.ARRAY_BUFFER);
}
if (useTangent)
{
for (int i = 0; i < blendShapeTangents.Length; ++i)
{
blendShapeTangents[i] = blendShapeTangents[i].ReverseZ();
}
blendShapeTangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex,
blendShapeTangents,
glBufferTarget.ARRAY_BUFFER);
}
}
if (blendShapePositionAccessorIndex != -1)
{
gltf.accessors[blendShapePositionAccessorIndex].min = blendShapeVertices.Aggregate(blendShapeVertices[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[blendShapePositionAccessorIndex].max = blendShapeVertices.Aggregate(blendShapeVertices[0], (a, b) => new Vector3(Mathf.Max(a.x, b.x), Math.Max(a.y, b.y), Mathf.Max(a.z, b.z))).ToArray();
}
return(new gltfMorphTarget
{
POSITION = blendShapePositionAccessorIndex,
NORMAL = blendShapeNormalAccessorIndex,
TANGENT = blendShapeTangentAccessorIndex,
});
}
public void ProcessOnAnyThread(glTF gltf, IStorage storage)
{
var imageIndex = gltf.GetImageIndexFromTextureIndex(m_textureIndex);
m_segments = gltf.GetImageBytes(storage, imageIndex, out m_textureName);
}
public void GlTFToJsonTest()
{
var gltf = new glTF();
using (var exporter = new gltfExporter(gltf))
{
exporter.Prepare(CreateSimpleScene());
exporter.Export(MeshExportSettings.Default, AssetTextureUtil.IsTextureEditorAsset, AssetTextureUtil.GetTextureBytesWithMime);
}
var expected = gltf.ToJson().ParseAsJson();
expected.AddKey(Utf8String.From("meshes"));
expected.AddValue(default(ArraySegment <byte>), ValueNodeType.Array);
expected["meshes"].AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
var mesh = expected["meshes"][0];
mesh.AddKey(Utf8String.From("name"));
mesh.AddValue(Utf8String.From(JsonString.Quote("test")).Bytes, ValueNodeType.String);
mesh.AddKey(Utf8String.From("primitives"));
mesh.AddValue(default(ArraySegment <byte>), ValueNodeType.Array);
mesh["primitives"].AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
var primitive = mesh["primitives"][0];
primitive.AddKey(Utf8String.From("mode"));
primitive.AddValue(Utf8String.From("0").Bytes, ValueNodeType.Integer);
primitive.AddKey(Utf8String.From("indices"));
primitive.AddValue(Utf8String.From("0").Bytes, ValueNodeType.Integer);
primitive.AddKey(Utf8String.From("material"));
primitive.AddValue(Utf8String.From("0").Bytes, ValueNodeType.Integer);
primitive.AddKey(Utf8String.From("attributes"));
primitive.AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
primitive["attributes"].AddKey(Utf8String.From("POSITION"));
primitive["attributes"].AddValue(Utf8String.From("0").Bytes, ValueNodeType.Integer);
primitive.AddKey(Utf8String.From("targets"));
primitive.AddValue(default(ArraySegment <byte>), ValueNodeType.Array);
primitive["targets"].AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
primitive["targets"][0].AddKey(Utf8String.From("POSITION"));
primitive["targets"][0].AddValue(Utf8String.From("1").Bytes, ValueNodeType.Integer);
primitive["targets"].AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
primitive["targets"][1].AddKey(Utf8String.From("POSITION"));
primitive["targets"][1].AddValue(Utf8String.From("2").Bytes, ValueNodeType.Integer);
primitive["targets"][1].AddKey(Utf8String.From("TANGENT"));
primitive["targets"][1].AddValue(Utf8String.From("0").Bytes, ValueNodeType.Integer);
gltf.meshes.Add(new glTFMesh("test")
{
primitives = new List <glTFPrimitives>
{
new glTFPrimitives
{
indices = 0,
attributes = new glTFAttributes
{
POSITION = 0,
TANGENT = -1 // should be removed
},
targets = new List <gltfMorphTarget>
{
new gltfMorphTarget
{
POSITION = 1,
TANGENT = -1 // should be removed
},
new gltfMorphTarget
{
POSITION = 2,
TANGENT = 0
}
}
}
}
});
var actual = gltf.ToJson().ParseAsJson();
Assert.AreEqual(expected, actual);
}
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("empty root GameObject required");
}
var unityNodes = go.transform.Traverse()
.Skip(1) // exclude root object for the symmetry with the importer
.ToList();
#region Materials and Textures
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];
TextureIO.ExportTexture(gltf, bufferIndex, texture);
}
gltf.materials = unityMaterials.Select(x => MaterialIO.ExportMaterial(x, unityTextures)).ToList();
#endregion
#region Meshes
var unityMeshes = unityNodes
.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, 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;
}
}
#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 GetTextureParam BaseColorTexture(glTF gltf, glTFMaterial src)
{
return(GetTextureParam.CreateSRGB(gltf, src.pbrMetallicRoughness.baseColorTexture.index));
}
static glTFMesh ExportPrimitives(glTF gltf, int bufferIndex,
string rendererName,
Mesh mesh, Material[] materials,
List <Material> unityMaterials)
{
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.normalized.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#if GLTF_EXPORT_TANGENTS
var tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#endif
var uvAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var colorAccessorIndex = -1;
var vColorState = MeshExportInfo.DetectVertexColor(mesh, materials);
if (vColorState == MeshExportInfo.VertexColorState.ExistsAndIsUsed || // VColor使っている
vColorState == MeshExportInfo.VertexColorState.ExistsAndMixed // VColorを使っているところと使っていないところが混在(とりあえずExportする)
)
{
// UniUnlit で Multiply 設定になっている
colorAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.colors, 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 GLTF_EXPORT_TANGENTS
if (tangentAccessorIndex != -1)
{
attributes.TANGENT = tangentAccessorIndex;
}
#endif
if (uvAccessorIndex != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex;
}
if (colorAccessorIndex != -1)
{
attributes.COLOR_0 = colorAccessorIndex;
}
if (weightAccessorIndex != -1)
{
attributes.WEIGHTS_0 = weightAccessorIndex;
}
if (jointsAccessorIndex != -1)
{
attributes.JOINTS_0 = jointsAccessorIndex;
}
var gltfMesh = 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);
if (j >= materials.Length)
{
Debug.LogWarningFormat("{0}.materials is not enough", rendererName);
break;
}
gltfMesh.primitives.Add(new glTFPrimitives
{
attributes = attributes,
indices = indicesAccessorIndex,
mode = 4, // triangles ?
material = unityMaterials.IndexOf(materials[j])
});
}
return(gltfMesh);
}
public static IEnumerable <(Mesh, glTFMesh, Dictionary <int, int>)> ExportMeshes(glTF gltf, int bufferIndex,
List <MeshWithRenderer> unityMeshes, List <Material> unityMaterials,
MeshExportSettings settings)
{
for (int i = 0; i < unityMeshes.Count; ++i)
{
var x = unityMeshes[i];
var mesh = x.Mesh;
var materials = x.Renderer.sharedMaterials;
var gltfMesh = ExportPrimitives(gltf, bufferIndex,
x.Renderer.name,
mesh, materials, unityMaterials);
var blendShapeIndexMap = new Dictionary <int, int>();
int exportBlendShapes = 0;
for (int j = 0; j < mesh.blendShapeCount; ++j)
{
var morphTarget = ExportMorphTarget(gltf, bufferIndex,
mesh, j,
settings.UseSparseAccessorForMorphTarget,
settings.ExportOnlyBlendShapePosition);
if (morphTarget.POSITION < 0 && morphTarget.NORMAL < 0 && morphTarget.TANGENT < 0)
{
continue;
}
// maybe skip
blendShapeIndexMap.Add(j, exportBlendShapes++);
//
// all primitive has same blendShape
//
for (int k = 0; k < gltfMesh.primitives.Count; ++k)
{
gltfMesh.primitives[k].targets.Add(morphTarget);
gltfMesh.primitives[k].extras.targetNames.Add(mesh.GetBlendShapeName(j));
}
}
yield return(mesh, gltfMesh, blendShapeIndexMap);
}
}
public static glTFMesh Export(glTF gltf, int bufferIndex,
MeshWithRenderer unityMesh, List<Material> unityMaterials,
IAxisInverter axisInverter, MeshExportSettings settings)
{
var mesh = unityMesh.Mesh;
var gltfMesh = new glTFMesh(mesh.name);
if (settings.ExportTangents)
{
// support しない
throw new NotImplementedException();
}
var positions = mesh.vertices;
var normals = mesh.normals;
var uv = mesh.uv;
var boneWeights = mesh.boneWeights;
Func<int, int> getJointIndex = null;
if (boneWeights != null && boneWeights.Length == positions.Length)
{
getJointIndex = unityMesh.GetJointIndex;
}
Vector3[] blendShapePositions = new Vector3[mesh.vertexCount];
Vector3[] blendShapeNormals = new Vector3[mesh.vertexCount];
var usedIndices = new List<int>();
for (int i = 0; i < mesh.subMeshCount; ++i)
{
var indices = mesh.GetIndices(i);
// mesh
// index の順に attributes を蓄える
var buffer = new MeshExportUtil.VertexBuffer(indices.Length, getJointIndex);
usedIndices.Clear();
for (int k = 0; k < positions.Length; ++k)
{
if (indices.Contains(k))
{
// indices から参照される頂点だけを蓄える
usedIndices.Add(k);
buffer.Push(k, axisInverter.InvertVector3(positions[k]), axisInverter.InvertVector3(normals[k]), uv[k].ReverseUV());
if (getJointIndex != null)
{
buffer.Push(boneWeights[k]);
}
}
}
var material = unityMesh.Renderer.sharedMaterials[i];
var materialIndex = -1;
if (material != null)
{
materialIndex = unityMaterials.IndexOf(material);
}
var flipped = new List<int>();
for (int j = 0; j < indices.Length; j += 3)
{
var t0 = indices[j];
var t1 = indices[j + 1];
var t2 = indices[j + 2];
flipped.Add(t2);
flipped.Add(t1);
flipped.Add(t0);
}
var gltfPrimitive = buffer.ToGltfPrimitive(gltf, bufferIndex, materialIndex, flipped);
// blendShape
for (int j = 0; j < mesh.blendShapeCount; ++j)
{
var blendShape = new MeshExportUtil.BlendShapeBuffer(indices.Length);
// index の順に attributes を蓄える
mesh.GetBlendShapeFrameVertices(j, 0, blendShapePositions, blendShapeNormals, null);
foreach (var k in usedIndices)
{
blendShape.Push(
axisInverter.InvertVector3(blendShapePositions[k]),
axisInverter.InvertVector3(blendShapeNormals[k]));
}
gltfPrimitive.targets.Add(blendShape.ToGltf(gltf, bufferIndex, !settings.ExportOnlyBlendShapePosition));
}
gltfMesh.primitives.Add(gltfPrimitive);
}
var targetNames = Enumerable.Range(0, mesh.blendShapeCount).Select(x => mesh.GetBlendShapeName(x)).ToArray();
gltf_mesh_extras_targetNames.Serialize(gltfMesh, targetNames);
return gltfMesh;
}
public static (glTFMesh gltfMesh, Dictionary <int, int> blendShapeIndexMap) ExportMesh(glTF gltf, int bufferIndex, Mesh mesh, Renderer renderer, List <Material> exportedMaterials, MeshExportSettings meshExportSettings, IAxisInverter axisInverter)
{
var meshMaterials = default(Material[]);
if (renderer != null)
{
meshMaterials = renderer.sharedMaterials;
}
var boneWeights = default(BoneWeight[]);
var jointIndexMap = default(int[]);
if (renderer is SkinnedMeshRenderer skin)
{
var bones = skin.bones;
var uniqueBones = bones.Distinct().ToArray();
jointIndexMap = new int[bones.Length];
for (var i = 0; i < bones.Length; i++)
{
jointIndexMap[i] = Array.IndexOf(uniqueBones, bones[i]);
}
boneWeights = mesh.boneWeights;
}
var gltfMesh = ExportPrimitives(gltf, bufferIndex, mesh, meshMaterials, boneWeights, jointIndexMap, exportedMaterials);
var targetNames = new List <string>();
var blendShapeIndexMap = new Dictionary <int, int>();
int exportBlendShapes = 0;
for (int j = 0; j < mesh.blendShapeCount; ++j)
{
var morphTarget = ExportMorphTarget(gltf, bufferIndex,
mesh, j,
meshExportSettings.UseSparseAccessorForMorphTarget,
meshExportSettings.ExportOnlyBlendShapePosition, axisInverter);
if (morphTarget.POSITION < 0 && morphTarget.NORMAL < 0 && morphTarget.TANGENT < 0)
{
continue;
}
// maybe skip
var blendShapeName = mesh.GetBlendShapeName(j);
blendShapeIndexMap.Add(j, exportBlendShapes++);
targetNames.Add(blendShapeName);
//
// all primitive has same blendShape
//
for (int k = 0; k < gltfMesh.primitives.Count; ++k)
{
gltfMesh.primitives[k].targets.Add(morphTarget);
}
}
gltf_mesh_extras_targetNames.Serialize(gltfMesh, targetNames);
return(gltfMesh, blendShapeIndexMap);
}
public static AnimationClip ConvertAnimationClip(glTF gltf, glTFAnimation animation, AxisInverter inverter, glTFNode root = null)
{
var clip = new AnimationClip();
clip.ClearCurves();
clip.legacy = true;
clip.name = animation.name;
clip.wrapMode = WrapMode.Loop;
foreach (var channel in animation.channels)
{
var relativePath = RelativePathFrom(gltf.nodes, root, gltf.nodes[channel.target.node]);
switch (channel.target.path)
{
case glTFAnimationTarget.PATH_TRANSLATION:
{
var sampler = animation.samplers[channel.sampler];
var input = gltf.GetArrayFromAccessor <float>(sampler.input);
var output = gltf.FlatternFloatArrayFromAccessor(sampler.output);
AnimationImporterUtil.SetAnimationCurve(
clip,
relativePath,
new string[] { "localPosition.x", "localPosition.y", "localPosition.z" },
input,
output,
sampler.interpolation,
typeof(Transform),
(values, last) =>
{
Vector3 temp = new Vector3(values[0], values[1], values[2]);
return(inverter.InvertVector3(temp).ToArray());
}
);
}
break;
case glTFAnimationTarget.PATH_ROTATION:
{
var sampler = animation.samplers[channel.sampler];
var input = gltf.GetArrayFromAccessor <float>(sampler.input);
var output = gltf.FlatternFloatArrayFromAccessor(sampler.output);
AnimationImporterUtil.SetAnimationCurve(
clip,
relativePath,
new string[] { "localRotation.x", "localRotation.y", "localRotation.z", "localRotation.w" },
input,
output,
sampler.interpolation,
typeof(Transform),
(values, last) =>
{
Quaternion currentQuaternion = new Quaternion(values[0], values[1], values[2], values[3]);
Quaternion lastQuaternion = new Quaternion(last[0], last[1], last[2], last[3]);
return(AnimationImporterUtil.GetShortest(lastQuaternion, inverter.InvertQuaternion(currentQuaternion)).ToArray());
}
);
clip.EnsureQuaternionContinuity();
}
break;
case glTFAnimationTarget.PATH_SCALE:
{
var sampler = animation.samplers[channel.sampler];
var input = gltf.GetArrayFromAccessor <float>(sampler.input);
var output = gltf.FlatternFloatArrayFromAccessor(sampler.output);
AnimationImporterUtil.SetAnimationCurve(
clip,
relativePath,
new string[] { "localScale.x", "localScale.y", "localScale.z" },
input,
output,
sampler.interpolation,
typeof(Transform),
(values, last) => values);
}
break;
case glTFAnimationTarget.PATH_WEIGHT:
{
var node = gltf.nodes[channel.target.node];
var mesh = gltf.meshes[node.mesh];
var primitive = mesh.primitives.FirstOrDefault();
var targets = primitive.targets;
if (!gltf_mesh_extras_targetNames.TryGet(mesh, out List <string> targetNames))
{
throw new Exception("glTF BlendShape Animation. targetNames invalid.");
}
var keyNames = targetNames
.Where(x => !string.IsNullOrEmpty(x))
.Select(x => "blendShape." + x)
.ToArray();
var sampler = animation.samplers[channel.sampler];
var input = gltf.GetArrayFromAccessor <float>(sampler.input);
var output = gltf.GetArrayFromAccessor <float>(sampler.output);
AnimationImporterUtil.SetAnimationCurve(
clip,
relativePath,
keyNames,
input,
output,
sampler.interpolation,
typeof(SkinnedMeshRenderer),
(values, last) =>
{
for (int j = 0; j < values.Length; j++)
{
values[j] *= 100.0f;
}
return(values);
});
}
break;
default:
Debug.LogWarningFormat("unknown path: {0}", channel.target.path);
break;
}
}
return(clip);
}
public static int ExtendBufferAndGetViewIndex <T>(this glTF gltf, int bufferIndex,
T[] array,
glBufferTarget target = glBufferTarget.NONE) where T : struct
{
return(ExtendBufferAndGetViewIndex(gltf, bufferIndex, new ArraySegment <T>(array), target));
}
public static GetTextureParam NormalTexture(glTF gltf, glTFMaterial src)
{
return(GetTextureParam.CreateNormal(gltf, src.normalTexture.index));
}
public static void Serialize(JsonFormatter f, glTF value)
{
f.BeginMap();
if (value.asset != null)
{
f.Key("asset");
Serialize_gltf_asset(f, value.asset);
}
if (value.buffers != null && value.buffers.Count >= 1)
{
f.Key("buffers");
Serialize_gltf_buffers(f, value.buffers);
}
if (value.bufferViews != null && value.bufferViews.Count >= 1)
{
f.Key("bufferViews");
Serialize_gltf_bufferViews(f, value.bufferViews);
}
if (value.accessors != null && value.accessors.Count >= 1)
{
f.Key("accessors");
Serialize_gltf_accessors(f, value.accessors);
}
if (value.textures != null && value.textures.Count >= 1)
{
f.Key("textures");
Serialize_gltf_textures(f, value.textures);
}
if (value.samplers != null && value.samplers.Count >= 1)
{
f.Key("samplers");
Serialize_gltf_samplers(f, value.samplers);
}
if (value.images != null && value.images.Count >= 1)
{
f.Key("images");
Serialize_gltf_images(f, value.images);
}
if (value.materials != null && value.materials.Count >= 1)
{
f.Key("materials");
Serialize_gltf_materials(f, value.materials);
}
if (value.meshes != null && value.meshes.Count >= 1)
{
f.Key("meshes");
Serialize_gltf_meshes(f, value.meshes);
}
if (value.nodes != null && value.nodes.Count >= 1)
{
f.Key("nodes");
Serialize_gltf_nodes(f, value.nodes);
}
if (value.skins != null && value.skins.Count >= 1)
{
f.Key("skins");
Serialize_gltf_skins(f, value.skins);
}
if (value.scene >= 0)
{
f.Key("scene");
f.Value(value.scene);
}
if (value.scenes != null && value.scenes.Count >= 1)
{
f.Key("scenes");
Serialize_gltf_scenes(f, value.scenes);
}
if (value.animations != null && value.animations.Count >= 1)
{
f.Key("animations");
Serialize_gltf_animations(f, value.animations);
}
if (value.cameras != null && value.cameras.Count >= 1)
{
f.Key("cameras");
Serialize_gltf_cameras(f, value.cameras);
}
if (value.extensionsUsed != null && value.extensionsUsed.Count >= 1)
{
f.Key("extensionsUsed");
Serialize_gltf_extensionsUsed(f, value.extensionsUsed);
}
if (value.extensionsRequired != null && value.extensionsRequired.Count >= 1)
{
f.Key("extensionsRequired");
Serialize_gltf_extensionsRequired(f, value.extensionsRequired);
}
if (value.extensions != null)
{
f.Key("extensions");
value.extensions.Serialize(f);
}
if (value.extras != null)
{
f.Key("extras");
value.extras.Serialize(f);
}
f.EndMap();
}
public static async Task <Material> CreateAsync(IAwaitCaller awaitCaller, glTF gltf, int i, GetTextureAsyncFunc getTexture)
{
if (getTexture == null)
{
getTexture = (IAwaitCaller _awaitCaller, glTF _gltf, GetTextureParam _param) => Task.FromResult <Texture2D>(null);
}
if (i < 0 || i >= gltf.materials.Count)
{
return(MaterialFactory.CreateMaterial(i, null, ShaderName));
}
var src = gltf.materials[i];
var material = MaterialFactory.CreateMaterial(i, src, ShaderName);
var standardParam = default(GetTextureParam);
if (src.pbrMetallicRoughness != null || src.occlusionTexture != null)
{
if (src.pbrMetallicRoughness.metallicRoughnessTexture != null || src.occlusionTexture != null)
{
standardParam = StandardTexture(gltf, src);
}
if (src.pbrMetallicRoughness.baseColorFactor != null && src.pbrMetallicRoughness.baseColorFactor.Length == 4)
{
var color = src.pbrMetallicRoughness.baseColorFactor;
material.color = (new Color(color[0], color[1], color[2], color[3])).gamma;
}
if (src.pbrMetallicRoughness.baseColorTexture != null && src.pbrMetallicRoughness.baseColorTexture.index != -1)
{
material.mainTexture = await getTexture(awaitCaller, gltf, BaseColorTexture(gltf, src));
// Texture Offset and Scale
MaterialFactory.SetTextureOffsetAndScale(material, src.pbrMetallicRoughness.baseColorTexture, "_MainTex");
}
if (src.pbrMetallicRoughness.metallicRoughnessTexture != null && src.pbrMetallicRoughness.metallicRoughnessTexture.index != -1)
{
material.EnableKeyword("_METALLICGLOSSMAP");
var texture = await getTexture(awaitCaller, gltf, standardParam);
if (texture != null)
{
material.SetTexture(GetTextureParam.METALLIC_GLOSS_PROP, texture);
}
material.SetFloat("_Metallic", 1.0f);
// Set 1.0f as hard-coded. See: https://github.com/dwango/UniVRM/issues/212.
material.SetFloat("_GlossMapScale", 1.0f);
// Texture Offset and Scale
MaterialFactory.SetTextureOffsetAndScale(material, src.pbrMetallicRoughness.metallicRoughnessTexture, "_MetallicGlossMap");
}
else
{
material.SetFloat("_Metallic", src.pbrMetallicRoughness.metallicFactor);
material.SetFloat("_Glossiness", 1.0f - src.pbrMetallicRoughness.roughnessFactor);
}
}
if (src.normalTexture != null && src.normalTexture.index != -1)
{
material.EnableKeyword("_NORMALMAP");
var texture = await getTexture(awaitCaller, gltf, NormalTexture(gltf, src));
if (texture != null)
{
material.SetTexture(GetTextureParam.NORMAL_PROP, texture);
material.SetFloat("_BumpScale", src.normalTexture.scale);
}
// Texture Offset and Scale
MaterialFactory.SetTextureOffsetAndScale(material, src.normalTexture, "_BumpMap");
}
if (src.occlusionTexture != null && src.occlusionTexture.index != -1)
{
var texture = await getTexture(awaitCaller, gltf, standardParam);
if (texture != null)
{
material.SetTexture(GetTextureParam.OCCLUSION_PROP, texture);
material.SetFloat("_OcclusionStrength", src.occlusionTexture.strength);
}
// Texture Offset and Scale
MaterialFactory.SetTextureOffsetAndScale(material, src.occlusionTexture, "_OcclusionMap");
}
if (src.emissiveFactor != null ||
(src.emissiveTexture != null && src.emissiveTexture.index != -1))
{
material.EnableKeyword("_EMISSION");
material.globalIlluminationFlags &= ~MaterialGlobalIlluminationFlags.EmissiveIsBlack;
if (src.emissiveFactor != null && src.emissiveFactor.Length == 3)
{
material.SetColor("_EmissionColor", new Color(src.emissiveFactor[0], src.emissiveFactor[1], src.emissiveFactor[2]));
}
if (src.emissiveTexture != null && src.emissiveTexture.index != -1)
{
var texture = await getTexture(awaitCaller, gltf, GetTextureParam.CreateSRGB(gltf, src.emissiveTexture.index));
if (texture != null)
{
material.SetTexture("_EmissionMap", texture);
}
// Texture Offset and Scale
MaterialFactory.SetTextureOffsetAndScale(material, src.emissiveTexture, "_EmissionMap");
}
}
BlendMode blendMode = BlendMode.Opaque;
// https://forum.unity.com/threads/standard-material-shader-ignoring-setfloat-property-_mode.344557/#post-2229980
switch (src.alphaMode)
{
case "BLEND":
blendMode = BlendMode.Fade;
material.SetOverrideTag("RenderType", "Transparent");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
material.SetInt("_ZWrite", 0);
material.DisableKeyword("_ALPHATEST_ON");
material.EnableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = 3000;
break;
case "MASK":
blendMode = BlendMode.Cutout;
material.SetOverrideTag("RenderType", "TransparentCutout");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.SetFloat("_Cutoff", src.alphaCutoff);
material.EnableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = 2450;
break;
default: // OPAQUE
blendMode = BlendMode.Opaque;
material.SetOverrideTag("RenderType", "");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.DisableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = -1;
break;
}
material.SetFloat("_Mode", (float)blendMode);
return(material);
}
public void ProcessOnAnyThread(glTF gltf, IStorage storage)
{
}
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();
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 = Nodes
.Select(x => new MeshWithRenderer
{
Mesh = x.GetSharedMesh(),
Renderer = x.GetComponent <Renderer>(),
})
.Where(x =>
{
if (x.Mesh == null)
{
return(false);
}
if (x.Renderer.sharedMaterials == null ||
x.Renderer.sharedMaterials.Length == 0)
{
return(false);
}
return(true);
})
.ToList();
MeshExporter.ExportMeshes(gltf, bufferIndex, unityMeshes, Materials, useSparseAccessorForMorphTarget);
Meshes = unityMeshes.Select(x => x.Mesh).ToList();
#endregion
#region Nodes and 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.Renderer).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 = ;
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);
}
}
}
}
public void SameMeshButDifferentMaterialExport()
{
var go = new GameObject("same_mesh");
try
{
var shader = Shader.Find("Unlit/Color");
var cubeA = GameObject.CreatePrimitive(PrimitiveType.Cube);
{
cubeA.transform.SetParent(go.transform);
var material = new Material(shader);
material.name = "red";
material.color = Color.red;
cubeA.GetComponent <Renderer>().sharedMaterial = material;
}
{
var cubeB = GameObject.Instantiate(cubeA);
cubeB.transform.SetParent(go.transform);
var material = new Material(shader);
material.color = Color.blue;
material.name = "blue";
cubeB.GetComponent <Renderer>().sharedMaterial = material;
Assert.AreEqual(cubeB.GetComponent <MeshFilter>().sharedMesh, cubeA.GetComponent <MeshFilter>().sharedMesh);
}
// export
var gltf = new glTF();
var json = default(string);
using (var exporter = new gltfExporter(gltf))
{
exporter.Prepare(go);
exporter.Export(UniGLTF.MeshExportSettings.Default, AssetTextureUtil.IsTextureEditorAsset, AssetTextureUtil.GetTextureBytesWithMime);
json = gltf.ToJson();
}
Assert.AreEqual(2, gltf.meshes.Count);
var red = gltf.materials[gltf.meshes[0].primitives[0].material];
Assert.AreEqual(new float[] { 1, 0, 0, 1 }, red.pbrMetallicRoughness.baseColorFactor);
var blue = gltf.materials[gltf.meshes[1].primitives[0].material];
Assert.AreEqual(new float[] { 0, 0, 1, 1 }, blue.pbrMetallicRoughness.baseColorFactor);
Assert.AreEqual(2, gltf.nodes.Count);
Assert.AreNotEqual(gltf.nodes[0].mesh, gltf.nodes[1].mesh);
// import
{
var parser = new GltfParser();
parser.ParseJson(json, new SimpleStorage(new ArraySegment <byte>(new byte[1024 * 1024])));
using (var context = new ImporterContext(parser))
{
//Debug.LogFormat("{0}", context.Json);
context.Load();
var importedRed = context.Root.transform.GetChild(0);
var importedRedMaterial = importedRed.GetComponent <Renderer>().sharedMaterial;
Assert.AreEqual("red", importedRedMaterial.name);
Assert.AreEqual(Color.red, importedRedMaterial.color);
var importedBlue = context.Root.transform.GetChild(1);
var importedBlueMaterial = importedBlue.GetComponent <Renderer>().sharedMaterial;
Assert.AreEqual("blue", importedBlueMaterial.name);
Assert.AreEqual(Color.blue, importedBlueMaterial.color);
}
}
// import new version
{
var parser = new GltfParser();
parser.ParseJson(json, new SimpleStorage(new ArraySegment <byte>(new byte[1024 * 1024])));
//Debug.LogFormat("{0}", context.Json);
using (var context = new ImporterContext(parser))
{
context.Load();
var importedRed = context.Root.transform.GetChild(0);
var importedRedMaterial = importedRed.GetComponent <Renderer>().sharedMaterial;
Assert.AreEqual("red", importedRedMaterial.name);
Assert.AreEqual(Color.red, importedRedMaterial.color);
var importedBlue = context.Root.transform.GetChild(1);
var importedBlueMaterial = importedBlue.GetComponent <Renderer>().sharedMaterial;
Assert.AreEqual("blue", importedBlueMaterial.name);
Assert.AreEqual(Color.blue, importedBlueMaterial.color);
}
}
}
finally
{
GameObject.DestroyImmediate(go);
}
}
static T[] GetAttrib <T>(this glTF self, glTFAccessor accessor, glTFBufferView view) where T : struct
{
return(self.GetAttrib <T>(accessor.count, accessor.byteOffset, view));
}
public static async Task <Material> CreateAsync(IAwaitCaller awaitCaller, glTF gltf, int i, GetTextureAsyncFunc getTexture, bool hasVertexColor)
{
if (getTexture == null)
{
getTexture = (_x, _y, _z) => Task.FromResult <Texture2D>(default);
public void SetSampler(glTF gltf)
{
SetSampler(Texture, gltf.GetSamplerFromTextureIndex(m_textureIndex));
}
static glTFMesh ExportPrimitives(glTF gltf, int bufferIndex,
MeshWithRenderer unityMesh, List <Material> unityMaterials)
{
var mesh = unityMesh.Mesh;
var materials = unityMesh.Renderer.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.normalized.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#if GLTF_EXPORT_TANGENTS
var tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#endif
var uvAccessorIndex0 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var uvAccessorIndex1 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv2.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var colorAccessorIndex = -1;
var vColorState = MeshExportInfo.DetectVertexColor(mesh, materials);
if (vColorState == MeshExportInfo.VertexColorState.ExistsAndIsUsed || // VColor使っている
vColorState == MeshExportInfo.VertexColorState.ExistsAndMixed // VColorを使っているところと使っていないところが混在(とりあえずExportする)
)
{
// UniUnlit で Multiply 設定になっている
colorAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.colors, 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)unityMesh.GetJointIndex(y.boneIndex0),
(ushort)unityMesh.GetJointIndex(y.boneIndex1),
(ushort)unityMesh.GetJointIndex(y.boneIndex2),
(ushort)unityMesh.GetJointIndex(y.boneIndex3))
).ToArray(), glBufferTarget.ARRAY_BUFFER);
var attributes = new glTFAttributes
{
POSITION = positionAccessorIndex,
};
if (normalAccessorIndex != -1)
{
attributes.NORMAL = normalAccessorIndex;
}
#if GLTF_EXPORT_TANGENTS
if (tangentAccessorIndex != -1)
{
attributes.TANGENT = tangentAccessorIndex;
}
#endif
if (uvAccessorIndex0 != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex0;
}
if (uvAccessorIndex1 != -1)
{
attributes.TEXCOORD_1 = uvAccessorIndex1;
}
if (colorAccessorIndex != -1)
{
attributes.COLOR_0 = colorAccessorIndex;
}
if (weightAccessorIndex != -1)
{
attributes.WEIGHTS_0 = weightAccessorIndex;
}
if (jointsAccessorIndex != -1)
{
attributes.JOINTS_0 = jointsAccessorIndex;
}
var gltfMesh = new glTFMesh(mesh.name);
var indices = new List <uint>();
for (int j = 0; j < mesh.subMeshCount; ++j)
{
indices.Clear();
var triangles = mesh.GetIndices(j);
if (triangles.Length == 0)
{
// https://github.com/vrm-c/UniVRM/issues/664
continue;
}
for (int i = 0; i < triangles.Length; i += 3)
{
var i0 = triangles[i];
var i1 = triangles[i + 1];
var i2 = triangles[i + 2];
// flip triangle
indices.Add((uint)i2);
indices.Add((uint)i1);
indices.Add((uint)i0);
}
var indicesAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, indices.ToArray(), glBufferTarget.ELEMENT_ARRAY_BUFFER);
if (indicesAccessorIndex < 0)
{
// https://github.com/vrm-c/UniVRM/issues/664
throw new Exception();
}
if (j >= materials.Length)
{
Debug.LogWarningFormat("{0}.materials is not enough", unityMesh.Renderer.name);
break;
}
gltfMesh.primitives.Add(new glTFPrimitives
{
attributes = attributes,
indices = indicesAccessorIndex,
mode = 4, // triangles ?
material = unityMaterials.IndexOf(materials[j])
});
}
return(gltfMesh);
}
public void Process(glTF gltf, IStorage storage)
{
ProcessOnAnyThread(gltf, storage);
ProcessOnMainThread(gltf);
}
public static int ExportTexture(glTF gltf, int bufferIndex, Texture texture)
{
var bytesWithPath = new BytesWithPath(texture);;
// add view
var view = gltf.buffers[bufferIndex].Append(bytesWithPath.Bytes, glBufferTarget.NONE);
var viewIndex = gltf.AddBufferView(view);
// add image
var imageIndex = gltf.images.Count;
gltf.images.Add(new glTFImage
{
name = texture.name,
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,
});
return(imageIndex);
}
public void ProcessOnMainThread(glTF gltf)
{
GetOrCreateTexture();
SetSampler(gltf);
}
void OnExported(UniGLTF.glTF vrm)
{
Debug.LogFormat("exported");
}
public MaterialFactory(glTF gltf, IStorage storage,
IEnumerable <(string, UnityEngine.Object)> externalMap)