/// <summary>
/// Loads via a web call the gltf file and then constructs a scene
/// </summary>
/// <param name="sceneIndex">Index into scene to load. -1 means load default</param>
/// <param name="isMultithreaded">Whether to do loading operation on a thread</param>
/// <returns></returns>
public IEnumerator Load(int sceneIndex = -1, bool isMultithreaded = false)
{
if (_loadType == LoadType.Uri)
{
var www = UnityWebRequest.Get(_gltfUrl);
yield return(www.Send());
if (www.responseCode >= 400 || www.responseCode == 0)
{
throw new WebRequestException(www);
}
_gltfData = www.downloadHandler.data;
}
else if (_loadType == LoadType.Stream)
{
// todo optimization: add stream support to parsing layer
int streamLength = (int)_gltfStream.Length;
_gltfData = new byte[streamLength];
_gltfStream.Read(_gltfData, 0, streamLength);
}
else
{
throw new Exception("Invalid load type specified: " + _loadType);
}
_root = GLTFParser.ParseJson(_gltfData);
yield return(ImportScene(sceneIndex, isMultithreaded));
}
public IExtension Clone(GLTFRoot gltfRoot)
{
return(new MSFT_LODExtension(MeshIds));
}
public static GLTFRoot Deserialize(TextReader textReader)
{
var jsonReader = new JsonTextReader(textReader);
var root = new GLTFRoot();
if (jsonReader.Read() && jsonReader.TokenType != JsonToken.StartObject)
{
throw new Exception("gltf json must be an object");
}
while (jsonReader.Read() && jsonReader.TokenType == JsonToken.PropertyName)
{
var curProp = jsonReader.Value.ToString();
switch (curProp)
{
case "extensionsUsed":
root.ExtensionsUsed = jsonReader.ReadStringList();
break;
case "extensionsRequired":
root.ExtensionsRequired = jsonReader.ReadStringList();
break;
case "accessors":
root.Accessors = jsonReader.ReadList(() => Accessor.Deserialize(root, jsonReader));
break;
case "animations":
root.Animations = jsonReader.ReadList(() => GLTFAnimation.Deserialize(root, jsonReader));
break;
case "asset":
root.Asset = Asset.Deserialize(root, jsonReader);
break;
case "buffers":
root.Buffers = jsonReader.ReadList(() => GLTFBuffer.Deserialize(root, jsonReader));
break;
case "bufferViews":
root.BufferViews = jsonReader.ReadList(() => BufferView.Deserialize(root, jsonReader));
break;
case "cameras":
root.Cameras = jsonReader.ReadList(() => GLTFCamera.Deserialize(root, jsonReader));
break;
case "images":
root.Images = jsonReader.ReadList(() => GLTFImage.Deserialize(root, jsonReader));
break;
case "materials":
root.Materials = jsonReader.ReadList(() => GLTFMaterial.Deserialize(root, jsonReader));
break;
case "meshes":
root.Meshes = jsonReader.ReadList(() => GLTFMesh.Deserialize(root, jsonReader));
break;
case "nodes":
root.Nodes = jsonReader.ReadList(() => Node.Deserialize(root, jsonReader));
break;
case "samplers":
root.Samplers = jsonReader.ReadList(() => Sampler.Deserialize(root, jsonReader));
break;
case "scene":
root.Scene = SceneId.Deserialize(root, jsonReader);
break;
case "scenes":
root.Scenes = jsonReader.ReadList(() => GLTF.Schema.GLTFScene.Deserialize(root, jsonReader));
break;
case "skins":
root.Skins = jsonReader.ReadList(() => Skin.Deserialize(root, jsonReader));
break;
case "textures":
root.Textures = jsonReader.ReadList(() => GLTFTexture.Deserialize(root, jsonReader));
break;
default:
root.DefaultPropertyDeserializer(root, jsonReader);
break;
}
}
return(root);
}
public IExtension Clone(GLTFRoot root)
{
return(new ExtTextureTransformExtension(Offset, Scale, TexCoord));
}
public OcclusionTextureInfo(OcclusionTextureInfo occulisionTextureInfo, GLTFRoot gltfRoot) : base(occulisionTextureInfo, gltfRoot)
{
Strength = occulisionTextureInfo.Strength;
}
public AccessorId(AccessorId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public SkinId(SkinId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public SamplerId(SamplerId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public LightId(LightId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public AnimationSamplerId(AnimationSamplerId sampler, GLTFRoot root)
{
Id = sampler.Id;
GLTFAnimation = sampler.GLTFAnimation;
Root = root;
}
public IExtension Clone(GLTFRoot gltfRoot)
{
return(new UnityMobileDiffuseExtension(new TextureInfo(MainTex, gltfRoot)));
}
public IExtension Clone(GLTFRoot gltfRoot)
{
return(new KHR_MaterialsUnlitExtension(this, gltfRoot));
}
public KHR_MaterialsUnlitExtension(KHR_MaterialsUnlitExtension ext, GLTFRoot root) : base(ext, root)
{
}
public override IExtension Deserialize(GLTFRoot root, JProperty extensionToken)
{
List <HT_node_colliderExtension.Collider> Colliders = new List <HT_node_colliderExtension.Collider>();
if (!extensionToken.HasValues)
{
return(new HT_node_colliderExtension(Colliders));
}
foreach (JToken value in extensionToken.Values())
{
HT_node_colliderExtension.ColliderType type = HT_node_colliderExtension.COLLIDERTYPE_DEFAULT;
bool isTrigger = HT_node_colliderExtension.ISTRIGGER_DEFAULT;
Vector3 center = HT_node_colliderExtension.CENTER_DEFAULT;
Vector3 size = HT_node_colliderExtension.SIZE_DEFAULT;
float radius = HT_node_colliderExtension.RADIUS_DEFAULT;
float height = HT_node_colliderExtension.HEIGHT_DEFAULT;
HT_node_colliderExtension.CapsuleDirection direction = HT_node_colliderExtension.DIRECTION_DEFAULT;
JToken typeToken = value[TYPE];
type = typeToken != null ? (HT_node_colliderExtension.ColliderType)typeToken.DeserializeAsInt() : type;
JToken isTriggerToken = value[ISTRIGGER];
isTrigger = isTriggerToken != null?isTriggerToken.DeserializeAsBool() : isTrigger;
JToken centerToken = value[CENTER];
center = centerToken != null?centerToken.DeserializeAsVector3() : center;
if (type == HT_node_colliderExtension.ColliderType.Box)
{
JToken sizeToken = value[SIZE];
size = sizeToken != null?sizeToken.DeserializeAsVector3() : size;
Colliders.Add(new HT_node_colliderExtension.BoxCollider(isTrigger, center, size));
}
if (type == HT_node_colliderExtension.ColliderType.Sphere)
{
JToken radiusToken = value[RADIUS];
radius = radiusToken != null?radiusToken.DeserializeAsFloat() : radius;
Colliders.Add(new HT_node_colliderExtension.SphereCollider(isTrigger, center, radius));
}
if (type == HT_node_colliderExtension.ColliderType.Capsule)
{
JToken radiusToken = value[RADIUS];
radius = radiusToken != null?radiusToken.DeserializeAsFloat() : radius;
JToken heightToken = value[HEIGHT];
height = heightToken != null?heightToken.DeserializeAsFloat() : height;
JToken directionToken = value[DIRECTION];
direction = directionToken != null ? (HT_node_colliderExtension.CapsuleDirection)directionToken.DeserializeAsInt() : direction;
Colliders.Add(new HT_node_colliderExtension.CapsuleCollider(isTrigger, center, radius, height, direction));
}
}
return(new HT_node_colliderExtension(Colliders));
}
public IExtension Clone(GLTFRoot gltfRoot)
{
return(new KHR_mesh_quantizationExtension(Translation, Scale));
}
public GLTFId(GLTFId <T> gltfId, GLTFRoot newRoot)
{
Id = gltfId.Id;
Root = newRoot;
}
public NodeId(NodeId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public abstract Extension Deserialize(GLTFRoot root, JProperty extensionToken);
public SceneId(SceneId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
// Taken from: http://answers.unity3d.com/comments/190515/view.html
// Official support for Mesh.RecalculateTangents should be coming in 5.6
// https://feedback.unity3d.com/suggestions/recalculatetangents
/*private MeshPrimitiveAttributes CalculateAndSetTangents(MeshPrimitiveAttributes attributes)
* {
* var triangleCount = attributes.Triangles.Length;
* var vertexCount = attributes.Vertices.Length;
*
* var tan1 = new Vector3[vertexCount];
* var tan2 = new Vector3[vertexCount];
*
* attributes.Tangents = new Vector4[vertexCount];
*
* for (long a = 0; a < triangleCount; a += 3)
* {
* long i1 = attributes.Triangles[a + 0];
* long i2 = attributes.Triangles[a + 1];
* long i3 = attributes.Triangles[a + 2];
*
* var v1 = attributes.Vertices[i1];
* var v2 = attributes.Vertices[i2];
* var v3 = attributes.Vertices[i3];
*
* var w1 = attributes.Uv[i1];
* var w2 = attributes.Uv[i2];
* var w3 = attributes.Uv[i3];
*
* var x1 = v2.X - v1.X;
* var x2 = v3.X - v1.X;
* var y1 = v2.Y - v1.Y;
* var y2 = v3.Y - v1.Y;
* var z1 = v2.Z - v1.Z;
* var z2 = v3.Z - v1.Z;
*
* var s1 = w2.X - w1.X;
* var s2 = w3.X - w1.X;
* var t1 = w2.Y - w1.Y;
* var t2 = w3.Y - w1.Y;
*
* var r = 1.0f / (s1 * t2 - s2 * t1);
*
* var sdir = new Vector3((t2 * x1 - t1 * x2) * r, (t2 * y1 - t1 * y2) * r, (t2 * z1 - t1 * z2) * r);
* var tdir = new Vector3((s1 * x2 - s2 * x1) * r, (s1 * y2 - s2 * y1) * r, (s1 * z2 - s2 * z1) * r);
*
* tan1[i1] += sdir;
* tan1[i2] += sdir;
* tan1[i3] += sdir;
*
* tan2[i1] += tdir;
* tan2[i2] += tdir;
* tan2[i3] += tdir;
* }
*
*
* for (long a = 0; a < vertexCount; ++a)
* {
* var n = attributes.Normals[a];
* var t = tan1[a];
*
* Vector3.OrthoNormalize(ref n, ref t);
*
* attributes.Tangents[a].X = t.X;
* attributes.Tangents[a].Y = t.Y;
* attributes.Tangents[a].Z = t.Z;
*
* attributes.Tangents[a].W = (Vector3.Dot(Vector3.Cross(n, t), tan2[a]) < 0.0f) ? -1.0f : 1.0f;
* }
*
* return attributes;
* }*/
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
},
skipStartObjectRead: true));
});
break;
case "extras":
// GLTF does not support morph target names, serialize in extras for now
// https://github.com/KhronosGroup/glTF/issues/1036
if (reader.Read() && reader.TokenType == JsonToken.StartObject)
{
while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
{
var extraProperty = reader.Value.ToString();
switch (extraProperty)
{
case "targetNames":
primitive.TargetNames = reader.ReadStringList();
break;
}
}
}
break;
default:
primitive.DefaultPropertyDeserializer(root, reader);
break;
}
}
return(primitive);
}
public TextureId(TextureId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public CameraId(CameraId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public BufferViewId(BufferViewId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public ImageId(ImageId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public IExtension Clone(GLTFRoot root)
{
return(new HT_node_colliderExtension(Colliders));
}
public MaterialId(MaterialId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public GLTFRoot(GLTFRoot gltfRoot) : base(gltfRoot)
{
if (gltfRoot.ExtensionsUsed != null)
{
ExtensionsUsed = gltfRoot.ExtensionsUsed.ToList();
}
if (gltfRoot.ExtensionsRequired != null)
{
ExtensionsRequired = gltfRoot.ExtensionsRequired.ToList();
}
if (gltfRoot.Accessors != null)
{
Accessors = new List <Accessor>(gltfRoot.Accessors.Count);
foreach (Accessor accessor in gltfRoot.Accessors)
{
Accessors.Add(new Accessor(accessor, this));
}
}
if (gltfRoot.Animations != null)
{
Animations = new List <GLTFAnimation>(gltfRoot.Animations.Count);
foreach (GLTFAnimation animation in gltfRoot.Animations)
{
Animations.Add(new GLTFAnimation(animation, this));
}
}
if (gltfRoot.Asset != null)
{
Asset = new Asset(gltfRoot.Asset);
}
if (gltfRoot.Buffers != null)
{
Buffers = new List <GLTFBuffer>(gltfRoot.Buffers.Count);
foreach (GLTFBuffer buffer in gltfRoot.Buffers)
{
Buffers.Add(new GLTFBuffer(buffer, this));
}
}
if (gltfRoot.BufferViews != null)
{
BufferViews = new List <BufferView>(gltfRoot.BufferViews.Count);
foreach (BufferView bufferView in gltfRoot.BufferViews)
{
BufferViews.Add(new BufferView(bufferView, this));
}
}
if (gltfRoot.Cameras != null)
{
Cameras = new List <GLTFCamera>(gltfRoot.Cameras.Count);
foreach (GLTFCamera camera in gltfRoot.Cameras)
{
Cameras.Add(new GLTFCamera(camera, this));
}
}
if (gltfRoot.Images != null)
{
Images = new List <GLTFImage>(gltfRoot.Images.Count);
foreach (GLTFImage image in gltfRoot.Images)
{
Images.Add(new GLTFImage(image, this));
}
}
if (gltfRoot.Materials != null)
{
Materials = new List <GLTFMaterial>(gltfRoot.Materials.Count);
foreach (GLTFMaterial material in gltfRoot.Materials)
{
Materials.Add(new GLTFMaterial(material, this));
}
}
if (gltfRoot.Meshes != null)
{
Meshes = new List <GLTFMesh>(gltfRoot.Meshes.Count);
foreach (GLTFMesh mesh in gltfRoot.Meshes)
{
Meshes.Add(new GLTFMesh(mesh, this));
}
}
if (gltfRoot.Nodes != null)
{
Nodes = new List <Node>(gltfRoot.Nodes.Count);
foreach (Node node in gltfRoot.Nodes)
{
Nodes.Add(new Node(node, this));
}
}
if (gltfRoot.Samplers != null)
{
Samplers = new List <Sampler>(gltfRoot.Samplers.Count);
foreach (Sampler sampler in gltfRoot.Samplers)
{
Samplers.Add(new Sampler(sampler, this));
}
}
if (gltfRoot.Scene != null)
{
Scene = new SceneId(gltfRoot.Scene, this);
}
if (gltfRoot.Scenes != null)
{
Scenes = new List <GLTFScene>(gltfRoot.Scenes.Count);
foreach (GLTFScene scene in gltfRoot.Scenes)
{
Scenes.Add(new GLTFScene(scene, this));
}
}
if (gltfRoot.Skins != null)
{
Skins = new List <Skin>(gltfRoot.Skins.Count);
foreach (Skin skin in gltfRoot.Skins)
{
Skins.Add(new Skin(skin, this));
}
}
if (gltfRoot.Textures != null)
{
Textures = new List <GLTFTexture>(gltfRoot.Textures.Count);
foreach (GLTFTexture texture in gltfRoot.Textures)
{
Textures.Add(new GLTFTexture(texture, this));
}
}
}
public MeshId(MeshId id, GLTFRoot newRoot) : base(id, newRoot)
{
}
public static Node Deserialize(GLTFRoot root, JsonReader reader)
{
var node = new Node();
while (reader.Read() && reader.TokenType == JsonToken.PropertyName)
{
var curProp = reader.Value.ToString();
switch (curProp)
{
case "camera":
node.Camera = CameraId.Deserialize(root, reader);
break;
case "children":
node.Children = NodeId.ReadList(root, reader);
break;
case "skin":
node.Skin = SkinId.Deserialize(root, reader);
break;
case "matrix":
var list = reader.ReadDoubleList();
// gltf has column ordered matricies
UnityEngine.Vector4 c1 = new UnityEngine.Vector4((float)list[0], (float)list[1], (float)list[2], (float)list[3]);
UnityEngine.Vector4 c2 = new UnityEngine.Vector4((float)list[4], (float)list[5], (float)list[6], (float)list[7]);
UnityEngine.Vector4 c3 = new UnityEngine.Vector4((float)list[8], (float)list[9], (float)list[10], (float)list[11]);
UnityEngine.Vector4 c4 = new UnityEngine.Vector4((float)list[12], (float)list[13], (float)list[14], (float)list[15]);
var mat = new Matrix4x4(c1, c2, c3, c4);
node.Matrix = mat;
break;
case "mesh":
node.Mesh = MeshId.Deserialize(root, reader);
break;
case "rotation":
node.UseTRS = true;
node.Rotation = reader.ReadAsQuaternion();
break;
case "scale":
node.UseTRS = true;
node.Scale = reader.ReadAsVector3();
break;
case "translation":
node.UseTRS = true;
node.Translation = reader.ReadAsVector3();
break;
case "weights":
node.Weights = reader.ReadDoubleList();
break;
default:
node.DefaultPropertyDeserializer(root, reader);
break;
}
}
return(node);
}
public AnimationId(AnimationId id, GLTFRoot newRoot) : base(id, newRoot)
{
}