public static AnimationSampler Deserialize(GLTFRoot root, JsonReader reader)
{
var animationSampler = new AnimationSampler();
while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
{
var curProp = reader.Value.ToString();
switch (curProp)
{
case "input":
animationSampler.Input = AccessorId.Deserialize(root, reader);
break;
case "interpolation":
animationSampler.Interpolation = reader.ReadStringEnum <InterpolationType>();
break;
case "output":
animationSampler.Output = AccessorId.Deserialize(root, reader);
break;
default:
animationSampler.DefaultPropertyDeserializer(root, reader);
break;
}
}
return(animationSampler);
}
public static Skin Deserialize(GLTFRoot root, JsonReader reader)
{
var skin = new Skin();
while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
{
var curProp = reader.Value.ToString();
switch (curProp)
{
case "inverseBindMatrices":
skin.InverseBindMatrices = AccessorId.Deserialize(root, reader);
break;
case "skeleton":
skin.Skeleton = NodeId.Deserialize(root, reader);
break;
case "joints":
skin.Joints = reader.ReadList(() => NodeId.Deserialize(root, reader));
break;
default:
skin.DefaultPropertyDeserializer(root, reader);
break;
}
}
return(skin);
}
private static void MergeMeshes(GLTFRoot mergeToRoot, GLTFRoot mergeFromRoot, PreviousGLTFSizes previousGLTFSizes)
{
if (mergeFromRoot.Meshes == null)
{
return;
}
if (mergeToRoot.Meshes == null)
{
mergeToRoot.Meshes = new List <Mesh>(mergeFromRoot.Meshes.Count);
}
mergeToRoot.Meshes.AddRange(mergeFromRoot.Meshes);
for (int i = previousGLTFSizes.PreviousMeshCount; i < mergeToRoot.Meshes.Count; ++i)
{
Mesh mesh = mergeToRoot.Meshes[i];
if (mesh.Primitives != null)
{
foreach (MeshPrimitive primitive in mesh.Primitives)
{
foreach (var attributeAccessorPair in primitive.Attributes)
{
AccessorId accessorId = attributeAccessorPair.Value;
accessorId.Id += previousGLTFSizes.PreviousAccessorCount;
accessorId.Root = mergeToRoot;
}
if (primitive.Indices != null)
{
AccessorId accessorId = primitive.Indices;
accessorId.Id += previousGLTFSizes.PreviousAccessorCount;
accessorId.Root = mergeToRoot;
}
if (primitive.Material != null)
{
MaterialId materialId = primitive.Material;
materialId.Id += previousGLTFSizes.PreviousMaterialCount;
materialId.Root = mergeToRoot;
}
if (primitive.Targets != null)
{
foreach (Dictionary <string, AccessorId> targetsDictionary in primitive.Targets)
{
foreach (var targetsPair in targetsDictionary)
{
AccessorId accessorId = targetsPair.Value;
accessorId.Id += previousGLTFSizes.PreviousAccessorCount;
accessorId.Root = mergeToRoot;
}
}
}
}
}
}
}
public static MeshPrimitive Deserialize(GLTFRoot root, JsonReader reader)
{
var primitive = new MeshPrimitive();
while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
{
var curProp = reader.Value.ToString();
switch (curProp)
{
case "attributes":
primitive.Attributes = reader.ReadAsDictionary(() => new AccessorId
{
Id = reader.ReadAsInt32().Value,
Root = root
});
break;
case "indices":
primitive.Indices = AccessorId.Deserialize(root, reader);
break;
case "material":
primitive.Material = MaterialId.Deserialize(root, reader);
break;
case "mode":
primitive.Mode = (DrawMode)reader.ReadAsInt32().Value;
break;
case "targets":
primitive.Targets = reader.ReadList(() =>
{
return(reader.ReadAsDictionary(() => new AccessorId
{
Id = reader.ReadAsInt32().Value,
Root = root
}));
});
break;
default:
primitive.DefaultPropertyDeserializer(root, reader);
break;
}
}
return(primitive);
}
private static void MergeAnimationsAndSkins(GLTFRoot mergeToRoot, GLTFRoot mergeFromRoot, PreviousGLTFSizes previousGLTFSizes)
{
if (mergeFromRoot.Skins != null)
{
if (mergeToRoot.Skins == null)
{
mergeToRoot.Skins = new List <Skin>(mergeFromRoot.Skins.Count);
}
mergeToRoot.Skins.AddRange(mergeFromRoot.Skins);
for (int i = previousGLTFSizes.PreviousSkinCount; i < mergeToRoot.Skins.Count; ++i)
{
Skin skin = mergeToRoot.Skins[i];
if (skin.InverseBindMatrices != null)
{
skin.InverseBindMatrices.Id += previousGLTFSizes.PreviousAccessorCount;
}
if (skin.Skeleton != null)
{
skin.Skeleton.Id += previousGLTFSizes.PreviousNodeCount;
}
if (skin.Joints != null)
{
foreach (NodeId joint in skin.Joints)
{
joint.Id += previousGLTFSizes.PreviousNodeCount;
}
}
}
}
if (mergeFromRoot.Animations != null)
{
if (mergeToRoot.Animations == null)
{
mergeToRoot.Animations = new List <Animation>(mergeFromRoot.Animations.Count);
}
mergeToRoot.Animations.AddRange(mergeFromRoot.Animations);
for (int i = previousGLTFSizes.PreviousAnimationCount; i < mergeToRoot.Animations.Count; ++i)
{
Animation animation = mergeToRoot.Animations[i];
foreach (AnimationSampler sampler in animation.Samplers)
{
AccessorId inputId = sampler.Input;
inputId.Id += previousGLTFSizes.PreviousAccessorCount;
inputId.Root = mergeToRoot;
AccessorId outputId = sampler.Output;
outputId.Id += previousGLTFSizes.PreviousAccessorCount;
outputId.Root = mergeToRoot;
}
foreach (AnimationChannel channel in animation.Channels)
{
SamplerId samplerId = channel.Sampler;
samplerId.Id += previousGLTFSizes.PreviousSamplerCount;
samplerId.Root = mergeToRoot;
NodeId nodeId = channel.Target.Node;
nodeId.Id += previousGLTFSizes.PreviousNodeCount;
nodeId.Root = mergeToRoot;
}
}
}
}
private AccessorId ExportAccessor(Vector3[] arr)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC3;
float minX = arr[0].x;
float minY = arr[0].y;
float minZ = arr[0].z;
float maxX = arr[0].x;
float maxY = arr[0].y;
float maxZ = arr[0].z;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.x < minX)
{
minX = cur.x;
}
if (cur.y < minY)
{
minY = cur.y;
}
if (cur.z < minZ)
{
minZ = cur.z;
}
if (cur.x > maxX)
{
maxX = cur.x;
}
if (cur.y > maxY)
{
maxY = cur.y;
}
if (cur.z > maxZ)
{
maxZ = cur.z;
}
}
accessor.Min = new List <double> {
minX, minY, minZ
};
accessor.Max = new List <double> {
maxX, maxY, maxZ
};
var byteOffset = _bufferWriter.BaseStream.Position;
foreach (var vec in arr)
{
_bufferWriter.Write(vec.x);
_bufferWriter.Write(vec.y);
_bufferWriter.Write(vec.z);
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
var id = new AccessorId {
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
private AccessorId ExportAccessor(int[] arr)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.SCALAR;
int min = arr[0];
int max = arr[0];
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur < min)
{
min = cur;
}
if (cur > max)
{
max = cur;
}
}
var byteOffset = _bufferWriter.BaseStream.Position;
if (max < byte.MaxValue && min > byte.MinValue)
{
accessor.ComponentType = GLTFComponentType.UnsignedByte;
foreach (var v in arr)
{
_bufferWriter.Write((byte)v);
}
}
else if (max < sbyte.MaxValue && min > sbyte.MinValue)
{
accessor.ComponentType = GLTFComponentType.Byte;
foreach (var v in arr)
{
_bufferWriter.Write((sbyte)v);
}
}
else if (max < short.MaxValue && min > short.MinValue)
{
accessor.ComponentType = GLTFComponentType.Short;
foreach (var v in arr)
{
_bufferWriter.Write((short)v);
}
}
else if (max < ushort.MaxValue && min > ushort.MinValue)
{
accessor.ComponentType = GLTFComponentType.UnsignedShort;
foreach (var v in arr)
{
_bufferWriter.Write((ushort)v);
}
}
else if (min > uint.MinValue)
{
accessor.ComponentType = GLTFComponentType.UnsignedInt;
foreach (var v in arr)
{
_bufferWriter.Write((uint)v);
}
}
else
{
accessor.ComponentType = GLTFComponentType.Float;
foreach (var v in arr)
{
_bufferWriter.Write((float)v);
}
}
accessor.Min = new List <double> {
min
};
accessor.Max = new List <double> {
max
};
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
var id = new AccessorId {
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
// a mesh *might* decode to multiple prims if there are submeshes
private MeshPrimitive[] ExportPrimitive(GameObject gameObject)
{
var filter = gameObject.GetComponent <MeshFilter>();
var meshObj = filter.sharedMesh;
var renderer = gameObject.GetComponent <MeshRenderer>();
var materialsObj = renderer.sharedMaterials;
var prims = new MeshPrimitive[meshObj.subMeshCount];
// don't export any more accessors if this mesh is already exported
MeshPrimitive[] primVariations;
if (_meshToPrims.TryGetValue(meshObj, out primVariations) &&
meshObj.subMeshCount == primVariations.Length)
{
for (var i = 0; i < primVariations.Length; i++)
{
prims[i] = primVariations[i].Clone();
prims[i].Material = ExportMaterial(materialsObj[i]);
}
return(prims);
}
AccessorId aPosition = null, aNormal = null, aTangent = null,
aTexcoord0 = null, aTexcoord1 = null, aColor0 = null;
aPosition = ExportAccessor(InvertZ(meshObj.vertices));
if (meshObj.normals.Length != 0)
{
aNormal = ExportAccessor(InvertZ(meshObj.normals));
}
if (meshObj.tangents.Length != 0)
{
aTangent = ExportAccessor(InvertW(meshObj.tangents));
}
if (meshObj.uv.Length != 0)
{
aTexcoord0 = ExportAccessor(InvertY(meshObj.uv));
}
if (meshObj.uv2.Length != 0)
{
aTexcoord1 = ExportAccessor(InvertY(meshObj.uv2));
}
if (meshObj.colors.Length != 0)
{
aColor0 = ExportAccessor(meshObj.colors);
}
MaterialId lastMaterialId = null;
for (var submesh = 0; submesh < meshObj.subMeshCount; submesh++)
{
var primitive = new MeshPrimitive();
primitive.Contents = meshObj;
var triangles = meshObj.GetTriangles(submesh);
primitive.Indices = ExportAccessor(FlipFaces(triangles));
primitive.Attributes = new Dictionary <string, AccessorId>();
primitive.Attributes.Add(SemanticProperties.POSITION, aPosition);
if (aNormal != null)
{
primitive.Attributes.Add(SemanticProperties.NORMAL, aNormal);
}
if (aTangent != null)
{
primitive.Attributes.Add(SemanticProperties.TANGENT, aTangent);
}
if (aTexcoord0 != null)
{
primitive.Attributes.Add(SemanticProperties.TexCoord(0), aTexcoord0);
}
if (aTexcoord1 != null)
{
primitive.Attributes.Add(SemanticProperties.TexCoord(1), aTexcoord1);
}
if (aColor0 != null)
{
primitive.Attributes.Add(SemanticProperties.Color(0), aColor0);
}
if (submesh < materialsObj.Length)
{
primitive.Material = ExportMaterial(materialsObj[submesh]);
lastMaterialId = primitive.Material;
}
else
{
primitive.Material = lastMaterialId;
}
prims[submesh] = primitive;
}
_meshToPrims[meshObj] = prims;
return(prims);
}
private AccessorId ExportAccessor(Color[] arr)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC4;
float minR = arr[0].r;
float minG = arr[0].g;
float minB = arr[0].b;
float minA = arr[0].a;
float maxR = arr[0].r;
float maxG = arr[0].g;
float maxB = arr[0].b;
float maxA = arr[0].a;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.r < minR)
{
minR = cur.r;
}
if (cur.g < minG)
{
minG = cur.g;
}
if (cur.b < minB)
{
minB = cur.b;
}
if (cur.a < minA)
{
minA = cur.a;
}
if (cur.r > maxR)
{
maxR = cur.r;
}
if (cur.g > maxG)
{
maxG = cur.g;
}
if (cur.b > maxB)
{
maxB = cur.b;
}
if (cur.a > maxA)
{
maxA = cur.a;
}
}
accessor.Min = new List <double> {
minR, minG, minB, minA
};
accessor.Max = new List <double> {
maxR, maxG, maxB, maxA
};
var byteOffset = _bufferWriter.BaseStream.Position;
foreach (var color in arr)
{
_bufferWriter.Write(color.r);
_bufferWriter.Write(color.g);
_bufferWriter.Write(color.b);
_bufferWriter.Write(color.a);
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
var id = new AccessorId {
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}