diff --git a/src/gltf-structure/gltf-structure/Accessor.ts b/src/gltf-structure/gltf-structure/Accessor.ts
new file mode 100644
index 00000000..f370f312
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Accessor.ts
@@ -0,0 +1,55 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+import { AccessorSparse } from "./AccessorSparse";
+
+/**
+ * A typed view into a buffer view that contains raw binary data.
+ * @internal
+ */
+export interface Accessor extends GlTFChildOfRootProperty {
+  /**
+   * The index of the bufferView.
+   */
+  bufferView?: GlTFid;
+
+  /**
+   * The offset relative to the start of the buffer view in bytes.
+   */
+  byteOffset?: number;
+
+  /**
+   * The datatype of the accessor's components.
+   */
+  componentType: number;
+
+  /**
+   * Specifies whether integer data values are normalized before usage.
+   */
+  normalized?: boolean;
+
+  /**
+   * The number of elements referenced by this accessor.
+   */
+  count: number;
+
+  /**
+   * Specifies if the accessor's elements are scalars vectors or matrices.
+   */
+  type: string;
+
+  /**
+   * Maximum value of each component in this accessor.
+   */
+  max?: number[];
+
+  /**
+   * Minimum value of each component in this accessor.
+   */
+  min?: number[];
+
+  /**
+   * Sparse storage of elements that deviate from their initialization
+   * value.
+   */
+  sparse?: AccessorSparse;
+}
diff --git a/src/gltf-structure/gltf-structure/AccessorSparse.ts b/src/gltf-structure/gltf-structure/AccessorSparse.ts
new file mode 100644
index 00000000..25349a5e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AccessorSparse.ts
@@ -0,0 +1,28 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { AccessorSparseIndices } from "./AccessorSparseIndices";
+import { AccessorSparseValues } from "./AccessorSparseValues";
+
+/**
+ * Sparse storage of accessor values that deviate from their
+ * initialization value.
+ * @internal
+ */
+export interface AccessorSparse extends GlTFProperty {
+  /**
+   * Number of deviating accessor values stored in the sparse array.
+   */
+  count: number;
+
+  /**
+   * An object pointing to a buffer view containing the indices of
+   * deviating accessor values. The number of indices is equal to `count`.
+   * Indices **MUST** strictly increase.
+   */
+  indices: AccessorSparseIndices;
+
+  /**
+   * An object pointing to a buffer view containing the deviating accessor
+   * values.
+   */
+  values: AccessorSparseValues;
+}
diff --git a/src/gltf-structure/gltf-structure/AccessorSparseIndices.ts b/src/gltf-structure/gltf-structure/AccessorSparseIndices.ts
new file mode 100644
index 00000000..6c541d6d
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AccessorSparseIndices.ts
@@ -0,0 +1,28 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * An object pointing to a buffer view containing the indices of
+ * deviating accessor values. The number of indices is equal to
+ * `accessor.sparse.count`. Indices **MUST** strictly increase.
+ * @internal
+ */
+export interface AccessorSparseIndices extends GlTFProperty {
+  /**
+   * The index of the buffer view with sparse indices. The referenced
+   * buffer view **MUST NOT** have its `target` or `byteStride` properties
+   * defined. The buffer view and the optional `byteOffset` **MUST** be
+   * aligned to the `componentType` byte length.
+   */
+  bufferView: GlTFid;
+
+  /**
+   * The offset relative to the start of the buffer view in bytes.
+   */
+  byteOffset?: number;
+
+  /**
+   * The indices data type.
+   */
+  componentType: number;
+}
diff --git a/src/gltf-structure/gltf-structure/AccessorSparseValues.ts b/src/gltf-structure/gltf-structure/AccessorSparseValues.ts
new file mode 100644
index 00000000..7e79174d
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AccessorSparseValues.ts
@@ -0,0 +1,24 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * An object pointing to a buffer view containing the deviating accessor
+ * values. The number of elements is equal to `accessor.sparse.count`
+ * times number of components. The elements have the same component type
+ * as the base accessor. The elements are tightly packed. Data **MUST**
+ * be aligned following the same rules as the base accessor.
+ * @internal
+ */
+export interface AccessorSparseValues extends GlTFProperty {
+  /**
+   * The index of the bufferView with sparse values. The referenced buffer
+   * view **MUST NOT** have its `target` or `byteStride` properties
+   * defined.
+   */
+  bufferView: GlTFid;
+
+  /**
+   * The offset relative to the start of the bufferView in bytes.
+   */
+  byteOffset?: number;
+}
diff --git a/src/gltf-structure/gltf-structure/Animation.ts b/src/gltf-structure/gltf-structure/Animation.ts
new file mode 100644
index 00000000..4584145e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Animation.ts
@@ -0,0 +1,23 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { AnimationChannel } from "./AnimationChannel";
+import { AnimationSampler } from "./AnimationSampler";
+
+/**
+ * A keyframe animation.
+ * @internal
+ */
+export interface Animation extends GlTFChildOfRootProperty {
+  /**
+   * An array of animation channels. An animation channel combines an
+   * animation sampler with a target property being animated. Different
+   * channels of the same animation **MUST NOT** have the same targets.
+   */
+  channels: AnimationChannel[];
+
+  /**
+   * An array of animation samplers. An animation sampler combines
+   * timestamps with a sequence of output values and defines an
+   * interpolation algorithm.
+   */
+  samplers: AnimationSampler[];
+}
diff --git a/src/gltf-structure/gltf-structure/AnimationChannel.ts b/src/gltf-structure/gltf-structure/AnimationChannel.ts
new file mode 100644
index 00000000..01f83aad
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AnimationChannel.ts
@@ -0,0 +1,21 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+import { AnimationChannelTarget } from "./AnimationChannelTarget";
+
+/**
+ * An animation channel combines an animation sampler with a target
+ * property being animated.
+ * @internal
+ */
+export interface AnimationChannel extends GlTFProperty {
+  /**
+   * The index of a sampler in this animation used to compute the value for
+   * the target.
+   */
+  sampler: GlTFid;
+
+  /**
+   * The descriptor of the animated property.
+   */
+  target: AnimationChannelTarget;
+}
diff --git a/src/gltf-structure/gltf-structure/AnimationChannelTarget.ts b/src/gltf-structure/gltf-structure/AnimationChannelTarget.ts
new file mode 100644
index 00000000..18d104b3
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AnimationChannelTarget.ts
@@ -0,0 +1,25 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * The descriptor of the animated property.
+ * @internal
+ */
+export interface AnimationChannelTarget extends GlTFProperty {
+  /**
+   * The index of the node to animate. When undefined the animated object
+   * **MAY** be defined by an extension.
+   */
+  node?: GlTFid;
+
+  /**
+   * The name of the node's TRS property to animate or the `"weights"` of
+   * the Morph Targets it instantiates. For the `"translation"` property
+   * the values that are provided by the sampler are the translation along
+   * the X Y and Z axes. For the `"rotation"` property the values are a
+   * quaternion in the order (x y z w) where w is the scalar. For the
+   * `"scale"` property the values are the scaling factors along the X Y
+   * and Z axes.
+   */
+  path: string;
+}
diff --git a/src/gltf-structure/gltf-structure/AnimationSampler.ts b/src/gltf-structure/gltf-structure/AnimationSampler.ts
new file mode 100644
index 00000000..d7b9657c
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/AnimationSampler.ts
@@ -0,0 +1,24 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * An animation sampler combines timestamps with a sequence of output
+ * values and defines an interpolation algorithm.
+ * @internal
+ */
+export interface AnimationSampler extends GlTFProperty {
+  /**
+   * The index of an accessor containing keyframe timestamps.
+   */
+  input: GlTFid;
+
+  /**
+   * Interpolation algorithm.
+   */
+  interpolation?: string;
+
+  /**
+   * The index of an accessor containing keyframe output values.
+   */
+  output: GlTFid;
+}
diff --git a/src/gltf-structure/gltf-structure/Asset.ts b/src/gltf-structure/gltf-structure/Asset.ts
new file mode 100644
index 00000000..1b784d40
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Asset.ts
@@ -0,0 +1,31 @@
+import { GlTFProperty } from "./GlTFProperty";
+
+/**
+ * Metadata about the glTF asset.
+ * @internal
+ */
+export interface Asset extends GlTFProperty {
+  /**
+   * A copyright message suitable for display to credit the content
+   * creator.
+   */
+  copyright?: string;
+
+  /**
+   * Tool that generated this glTF model. Useful for debugging.
+   */
+  generator?: string;
+
+  /**
+   * The glTF version in the form of `<major>.<minor>` that this asset
+   * targets.
+   */
+  version: string;
+
+  /**
+   * The minimum glTF version in the form of `<major>.<minor>` that this
+   * asset targets. This property **MUST NOT** be greater than the asset
+   * version.
+   */
+  minVersion?: string;
+}
diff --git a/src/gltf-structure/gltf-structure/BufferObject.ts b/src/gltf-structure/gltf-structure/BufferObject.ts
new file mode 100644
index 00000000..11413036
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/BufferObject.ts
@@ -0,0 +1,17 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+
+/**
+ * A buffer points to binary geometry animation or skins.
+ * @internal
+ */
+export interface BufferObject extends GlTFChildOfRootProperty {
+  /**
+   * The URI (or IRI) of the buffer.
+   */
+  uri?: string;
+
+  /**
+   * The length of the buffer in bytes.
+   */
+  byteLength: number;
+}
diff --git a/src/gltf-structure/gltf-structure/BufferView.ts b/src/gltf-structure/gltf-structure/BufferView.ts
new file mode 100644
index 00000000..bf9b3e3e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/BufferView.ts
@@ -0,0 +1,34 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * A view into a buffer generally representing a subset of the buffer.
+ * @internal
+ */
+export interface BufferView extends GlTFChildOfRootProperty {
+  /**
+   * The index of the buffer.
+   */
+  buffer: GlTFid;
+
+  /**
+   * The offset into the buffer in bytes.
+   */
+  byteOffset?: number;
+
+  /**
+   * The length of the bufferView in bytes.
+   */
+  byteLength: number;
+
+  /**
+   * The stride in bytes.
+   */
+  byteStride?: number;
+
+  /**
+   * The hint representing the intended GPU buffer type to use with this
+   * buffer view.
+   */
+  target?: number;
+}
diff --git a/src/gltf-structure/gltf-structure/Camera.ts b/src/gltf-structure/gltf-structure/Camera.ts
new file mode 100644
index 00000000..f41a606d
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Camera.ts
@@ -0,0 +1,29 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { CameraOrthographic } from "./CameraOrthographic";
+import { CameraPerspective } from "./CameraPerspective";
+
+/**
+ * A camera's projection. A node **MAY** reference a camera to apply a
+ * transform to place the camera in the scene.
+ * @internal
+ */
+export interface Camera extends GlTFChildOfRootProperty {
+  /**
+   * An orthographic camera containing properties to create an orthographic
+   * projection matrix. This property **MUST NOT** be defined when
+   * `perspective` is defined.
+   */
+  orthographic?: CameraOrthographic;
+
+  /**
+   * A perspective camera containing properties to create a perspective
+   * projection matrix. This property **MUST NOT** be defined when
+   * `orthographic` is defined.
+   */
+  perspective?: CameraPerspective;
+
+  /**
+   * Specifies if the camera uses a perspective or orthographic projection.
+   */
+  type: string;
+}
diff --git a/src/gltf-structure/gltf-structure/CameraOrthographic.ts b/src/gltf-structure/gltf-structure/CameraOrthographic.ts
new file mode 100644
index 00000000..46fc4235
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/CameraOrthographic.ts
@@ -0,0 +1,32 @@
+import { GlTFProperty } from "./GlTFProperty";
+
+/**
+ * An orthographic camera containing properties to create an orthographic
+ * projection matrix.
+ * @internal
+ */
+export interface CameraOrthographic extends GlTFProperty {
+  /**
+   * The floating-point horizontal magnification of the view. This value
+   * **MUST NOT** be equal to zero. This value **SHOULD NOT** be negative.
+   */
+  xmag: number;
+
+  /**
+   * The floating-point vertical magnification of the view. This value
+   * **MUST NOT** be equal to zero. This value **SHOULD NOT** be negative.
+   */
+  ymag: number;
+
+  /**
+   * The floating-point distance to the far clipping plane. This value
+   * **MUST NOT** be equal to zero. `zfar` **MUST** be greater than
+   * `znear`.
+   */
+  zfar: number;
+
+  /**
+   * The floating-point distance to the near clipping plane.
+   */
+  znear: number;
+}
diff --git a/src/gltf-structure/gltf-structure/CameraPerspective.ts b/src/gltf-structure/gltf-structure/CameraPerspective.ts
new file mode 100644
index 00000000..699e3fd7
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/CameraPerspective.ts
@@ -0,0 +1,29 @@
+import { GlTFProperty } from "./GlTFProperty";
+
+/**
+ * A perspective camera containing properties to create a perspective
+ * projection matrix.
+ * @internal
+ */
+export interface CameraPerspective extends GlTFProperty {
+  /**
+   * The floating-point aspect ratio of the field of view.
+   */
+  aspectRatio?: number;
+
+  /**
+   * The floating-point vertical field of view in radians. This value
+   * **SHOULD** be less than π.
+   */
+  yfov: number;
+
+  /**
+   * The floating-point distance to the far clipping plane.
+   */
+  zfar?: number;
+
+  /**
+   * The floating-point distance to the near clipping plane.
+   */
+  znear: number;
+}
diff --git a/src/gltf-structure/gltf-structure/GlTF.ts b/src/gltf-structure/gltf-structure/GlTF.ts
new file mode 100644
index 00000000..7ebe49b0
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/GlTF.ts
@@ -0,0 +1,107 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { Accessor } from "./Accessor";
+import { Animation } from "./Animation";
+import { Asset } from "./Asset";
+import { BufferObject } from "./BufferObject";
+import { BufferView } from "./BufferView";
+import { Camera } from "./Camera";
+import { Image } from "./Image";
+import { Material } from "./Material";
+import { Mesh } from "./Mesh";
+import { Node } from "./Node";
+import { Sampler } from "./Sampler";
+import { GlTFid } from "./GlTFid";
+import { Scene } from "./Scene";
+import { Skin } from "./Skin";
+import { Texture } from "./Texture";
+
+/**
+ * The root object for a glTF asset.
+ * @internal
+ */
+export interface GlTF extends GlTFProperty {
+  /**
+   * Names of glTF extensions used in this asset.
+   */
+  extensionsUsed?: string[];
+
+  /**
+   * Names of glTF extensions required to properly load this asset.
+   */
+  extensionsRequired?: string[];
+
+  /**
+   * An array of accessors.
+   */
+  accessors?: Accessor[];
+
+  /**
+   * An array of keyframe animations.
+   */
+  animations?: Animation[];
+
+  /**
+   * Metadata about the glTF asset.
+   */
+  asset: Asset;
+
+  /**
+   * An array of buffers.
+   */
+  buffers?: BufferObject[];
+
+  /**
+   * An array of bufferViews.
+   */
+  bufferViews?: BufferView[];
+
+  /**
+   * An array of cameras.
+   */
+  cameras?: Camera[];
+
+  /**
+   * An array of images.
+   */
+  images?: Image[];
+
+  /**
+   * An array of materials.
+   */
+  materials?: Material[];
+
+  /**
+   * An array of meshes.
+   */
+  meshes?: Mesh[];
+
+  /**
+   * An array of nodes.
+   */
+  nodes?: Node[];
+
+  /**
+   * An array of samplers.
+   */
+  samplers?: Sampler[];
+
+  /**
+   * The index of the default scene.
+   */
+  scene?: GlTFid;
+
+  /**
+   * An array of scenes.
+   */
+  scenes?: Scene[];
+
+  /**
+   * An array of skins.
+   */
+  skins?: Skin[];
+
+  /**
+   * An array of textures.
+   */
+  textures?: Texture[];
+}
diff --git a/src/gltf-structure/gltf-structure/GlTFChildOfRootProperty.ts b/src/gltf-structure/gltf-structure/GlTFChildOfRootProperty.ts
new file mode 100644
index 00000000..68fe2320
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/GlTFChildOfRootProperty.ts
@@ -0,0 +1,13 @@
+import { GlTFProperty } from "./GlTFProperty";
+
+/**
+ * glTF Child of Root Property
+ *
+ * @internal
+ */
+export interface GlTFChildOfRootProperty extends GlTFProperty {
+  /**
+   * The user-defined name of this object.
+   */
+  name?: string;
+}
diff --git a/src/gltf-structure/gltf-structure/GlTFProperty.ts b/src/gltf-structure/gltf-structure/GlTFProperty.ts
new file mode 100644
index 00000000..a696e6ad
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/GlTFProperty.ts
@@ -0,0 +1,16 @@
+/**
+ * glTF Property
+ *
+ * @internal
+ */
+export interface GlTFProperty {
+  /**
+   * The extensions of this property
+   */
+  extensions?: { [key: string]: { [key: string]: any } };
+
+  /**
+   * The extras of this property
+   */
+  extras?: { [key: string]: any };
+}
diff --git a/src/gltf-structure/gltf-structure/GlTFid.ts b/src/gltf-structure/gltf-structure/GlTFid.ts
new file mode 100644
index 00000000..9c12ea81
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/GlTFid.ts
@@ -0,0 +1,4 @@
+/**
+ * @internal
+ */
+export type GlTFid = number;
diff --git a/src/gltf-structure/gltf-structure/Image.ts b/src/gltf-structure/gltf-structure/Image.ts
new file mode 100644
index 00000000..f0cd89f8
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Image.ts
@@ -0,0 +1,26 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * Image data used to create a texture. Image **MAY** be referenced by an
+ * URI (or IRI) or a buffer view index.
+ * @internal
+ */
+export interface Image extends GlTFChildOfRootProperty {
+  /**
+   * The URI (or IRI) of the image.
+   */
+  uri?: string;
+
+  /**
+   * The image's media type. This field **MUST** be defined when
+   * `bufferView` is defined.
+   */
+  mimeType?: string;
+
+  /**
+   * The index of the bufferView that contains the image. This field **MUST
+   * NOT** be defined when `uri` is defined.
+   */
+  bufferView?: GlTFid;
+}
diff --git a/src/gltf-structure/gltf-structure/Material.ts b/src/gltf-structure/gltf-structure/Material.ts
new file mode 100644
index 00000000..ef69abdf
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Material.ts
@@ -0,0 +1,54 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { MaterialPbrMetallicRoughness } from "./MaterialPbrMetallicRoughness";
+import { MaterialNormalTextureInfo } from "./MaterialNormalTextureInfo";
+import { MaterialOcclusionTextureInfo } from "./MaterialOcclusionTextureInfo";
+import { TextureInfo } from "./TextureInfo";
+
+/**
+ * The material appearance of a primitive.
+ * @internal
+ */
+export interface Material extends GlTFChildOfRootProperty {
+  /**
+   * A set of parameter values that are used to define the
+   * metallic-roughness material model from Physically Based Rendering
+   * (PBR) methodology. When undefined all the default values of
+   * `pbrMetallicRoughness` **MUST** apply.
+   */
+  pbrMetallicRoughness?: MaterialPbrMetallicRoughness;
+
+  /**
+   * The tangent space normal texture.
+   */
+  normalTexture?: MaterialNormalTextureInfo;
+
+  /**
+   * The occlusion texture.
+   */
+  occlusionTexture?: MaterialOcclusionTextureInfo;
+
+  /**
+   * The emissive texture.
+   */
+  emissiveTexture?: TextureInfo;
+
+  /**
+   * The factors for the emissive color of the material.
+   */
+  emissiveFactor?: number[];
+
+  /**
+   * The alpha rendering mode of the material.
+   */
+  alphaMode?: string;
+
+  /**
+   * The alpha cutoff value of the material.
+   */
+  alphaCutoff?: number;
+
+  /**
+   * Specifies whether the material is double sided.
+   */
+  doubleSided?: boolean;
+}
diff --git a/src/gltf-structure/gltf-structure/MaterialNormalTextureInfo.ts b/src/gltf-structure/gltf-structure/MaterialNormalTextureInfo.ts
new file mode 100644
index 00000000..a70b009e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/MaterialNormalTextureInfo.ts
@@ -0,0 +1,12 @@
+import { TextureInfo } from "./TextureInfo";
+
+/**
+ * @internal
+ */
+export interface MaterialNormalTextureInfo extends TextureInfo {
+  /**
+   * The scalar parameter applied to each normal vector of the normal
+   * texture.
+   */
+  scale?: number;
+}
diff --git a/src/gltf-structure/gltf-structure/MaterialOcclusionTextureInfo.ts b/src/gltf-structure/gltf-structure/MaterialOcclusionTextureInfo.ts
new file mode 100644
index 00000000..752653ea
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/MaterialOcclusionTextureInfo.ts
@@ -0,0 +1,11 @@
+import { TextureInfo } from "./TextureInfo";
+
+/**
+ * @internal
+ */
+export interface MaterialOcclusionTextureInfo extends TextureInfo {
+  /**
+   * A scalar multiplier controlling the amount of occlusion applied.
+   */
+  strength?: number;
+}
diff --git a/src/gltf-structure/gltf-structure/MaterialPbrMetallicRoughness.ts b/src/gltf-structure/gltf-structure/MaterialPbrMetallicRoughness.ts
new file mode 100644
index 00000000..bc98e044
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/MaterialPbrMetallicRoughness.ts
@@ -0,0 +1,35 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { TextureInfo } from "./TextureInfo";
+
+/**
+ * A set of parameter values that are used to define the
+ * metallic-roughness material model from Physically-Based Rendering
+ * (PBR) methodology.
+ * @internal
+ */
+export interface MaterialPbrMetallicRoughness extends GlTFProperty {
+  /**
+   * The factors for the base color of the material.
+   */
+  baseColorFactor?: number[];
+
+  /**
+   * The base color texture.
+   */
+  baseColorTexture?: TextureInfo;
+
+  /**
+   * The factor for the metalness of the material.
+   */
+  metallicFactor?: number;
+
+  /**
+   * The factor for the roughness of the material.
+   */
+  roughnessFactor?: number;
+
+  /**
+   * The metallic-roughness texture.
+   */
+  metallicRoughnessTexture?: TextureInfo;
+}
diff --git a/src/gltf-structure/gltf-structure/Mesh.ts b/src/gltf-structure/gltf-structure/Mesh.ts
new file mode 100644
index 00000000..e8b8b3d1
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Mesh.ts
@@ -0,0 +1,20 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { MeshPrimitive } from "./MeshPrimitive";
+
+/**
+ * A set of primitives to be rendered. Its global transform is defined by
+ * a node that references it.
+ * @internal
+ */
+export interface Mesh extends GlTFChildOfRootProperty {
+  /**
+   * An array of primitives each defining geometry to be rendered.
+   */
+  primitives: MeshPrimitive[];
+
+  /**
+   * Array of weights to be applied to the morph targets. The number of
+   * array elements **MUST** match the number of morph targets.
+   */
+  weights?: number[];
+}
diff --git a/src/gltf-structure/gltf-structure/MeshPrimitive.ts b/src/gltf-structure/gltf-structure/MeshPrimitive.ts
new file mode 100644
index 00000000..b7a59c29
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/MeshPrimitive.ts
@@ -0,0 +1,35 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * Geometry to be rendered with the given material.
+ * @internal
+ */
+export interface MeshPrimitive extends GlTFProperty {
+  /**
+   * A plain JSON object where each key corresponds to a mesh attribute
+   * semantic and each value is the index of the accessor containing
+   * attribute's data.
+   */
+  attributes: { [key: string]: GlTFid };
+
+  /**
+   * The index of the accessor that contains the vertex indices.
+   */
+  indices?: GlTFid;
+
+  /**
+   * The index of the material to apply to this primitive when rendering.
+   */
+  material?: GlTFid;
+
+  /**
+   * The topology type of primitives to render.
+   */
+  mode?: number;
+
+  /**
+   * An array of morph targets.
+   */
+  targets?: object[];
+}
diff --git a/src/gltf-structure/gltf-structure/Node.ts b/src/gltf-structure/gltf-structure/Node.ts
new file mode 100644
index 00000000..a490943c
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Node.ts
@@ -0,0 +1,67 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * A node in the node hierarchy. When the node contains `skin` all
+ * `mesh.primitives` **MUST** contain `JOINTS_0` and `WEIGHTS_0`
+ * attributes. A node **MAY** have either a `matrix` or any combination
+ * of `translation`/`rotation`/`scale` (TRS) properties. TRS properties
+ * are converted to matrices and postmultiplied in the `T * R * S` order
+ * to compose the transformation matrix; first the scale is applied to
+ * the vertices then the rotation and then the translation. If none are
+ * provided the transform is the identity. When a node is targeted for
+ * animation (referenced by an animation.channel.target) `matrix` **MUST
+ * NOT** be present.
+ * @internal
+ */
+export interface Node extends GlTFChildOfRootProperty {
+  /**
+   * The index of the camera referenced by this node.
+   */
+  camera?: GlTFid;
+
+  /**
+   * The indices of this node's children.
+   */
+  children?: GlTFid[];
+
+  /**
+   * The index of the skin referenced by this node.
+   */
+  skin?: GlTFid;
+
+  /**
+   * A floating-point 4x4 transformation matrix stored in column-major
+   * order.
+   */
+  matrix?: number[];
+
+  /**
+   * The index of the mesh in this node.
+   */
+  mesh?: GlTFid;
+
+  /**
+   * The node's unit quaternion rotation in the order (x y z w) where w is
+   * the scalar.
+   */
+  rotation?: number[];
+
+  /**
+   * The node's non-uniform scale given as the scaling factors along the x
+   * y and z axes.
+   */
+  scale?: number[];
+
+  /**
+   * The node's translation along the x y and z axes.
+   */
+  translation?: number[];
+
+  /**
+   * The weights of the instantiated morph target. The number of array
+   * elements **MUST** match the number of morph targets of the referenced
+   * mesh. When defined `mesh` **MUST** also be defined.
+   */
+  weights?: number[];
+}
diff --git a/src/gltf-structure/gltf-structure/Sampler.ts b/src/gltf-structure/gltf-structure/Sampler.ts
new file mode 100644
index 00000000..74c439aa
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Sampler.ts
@@ -0,0 +1,27 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+
+/**
+ * Texture sampler properties for filtering and wrapping modes.
+ * @internal
+ */
+export interface Sampler extends GlTFChildOfRootProperty {
+  /**
+   * Magnification filter.
+   */
+  magFilter?: number;
+
+  /**
+   * Minification filter.
+   */
+  minFilter?: number;
+
+  /**
+   * S (U) wrapping mode.
+   */
+  wrapS?: number;
+
+  /**
+   * T (V) wrapping mode.
+   */
+  wrapT?: number;
+}
diff --git a/src/gltf-structure/gltf-structure/Scene.ts b/src/gltf-structure/gltf-structure/Scene.ts
new file mode 100644
index 00000000..9068a53e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Scene.ts
@@ -0,0 +1,13 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * The root nodes of a scene.
+ * @internal
+ */
+export interface Scene extends GlTFChildOfRootProperty {
+  /**
+   * The indices of each root node.
+   */
+  nodes?: GlTFid[];
+}
diff --git a/src/gltf-structure/gltf-structure/Skin.ts b/src/gltf-structure/gltf-structure/Skin.ts
new file mode 100644
index 00000000..7750dcfc
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Skin.ts
@@ -0,0 +1,24 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * Joints and matrices defining a skin.
+ * @internal
+ */
+export interface Skin extends GlTFChildOfRootProperty {
+  /**
+   * The index of the accessor containing the floating-point 4x4
+   * inverse-bind matrices.
+   */
+  inverseBindMatrices?: GlTFid;
+
+  /**
+   * The index of the node used as a skeleton root.
+   */
+  skeleton?: GlTFid;
+
+  /**
+   * Indices of skeleton nodes used as joints in this skin.
+   */
+  joints: GlTFid[];
+}
diff --git a/src/gltf-structure/gltf-structure/Texture.ts b/src/gltf-structure/gltf-structure/Texture.ts
new file mode 100644
index 00000000..2463dc14
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/Texture.ts
@@ -0,0 +1,21 @@
+import { GlTFChildOfRootProperty } from "./GlTFChildOfRootProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * A texture and its sampler.
+ * @internal
+ */
+export interface Texture extends GlTFChildOfRootProperty {
+  /**
+   * The index of the sampler used by this texture. When undefined a
+   * sampler with repeat wrapping and auto filtering **SHOULD** be used.
+   */
+  sampler?: GlTFid;
+
+  /**
+   * The index of the image used by this texture. When undefined an
+   * extension or other mechanism **SHOULD** supply an alternate texture
+   * source otherwise behavior is undefined.
+   */
+  source?: GlTFid;
+}
diff --git a/src/gltf-structure/gltf-structure/TextureInfo.ts b/src/gltf-structure/gltf-structure/TextureInfo.ts
new file mode 100644
index 00000000..22bbf78e
--- /dev/null
+++ b/src/gltf-structure/gltf-structure/TextureInfo.ts
@@ -0,0 +1,19 @@
+import { GlTFProperty } from "./GlTFProperty";
+import { GlTFid } from "./GlTFid";
+
+/**
+ * Reference to a texture.
+ * @internal
+ */
+export interface TextureInfo extends GlTFProperty {
+  /**
+   * The index of the texture.
+   */
+  index: GlTFid;
+
+  /**
+   * The set index of texture's TEXCOORD attribute used for texture
+   * coordinate mapping.
+   */
+  texCoord?: number;
+}
diff --git a/src/gltf-structure/index.ts b/src/gltf-structure/index.ts
new file mode 100644
index 00000000..19285faf
--- /dev/null
+++ b/src/gltf-structure/index.ts
@@ -0,0 +1,31 @@
+export * from "./gltf-structure/Accessor";
+export * from "./gltf-structure/AccessorSparse";
+export * from "./gltf-structure/AccessorSparseIndices";
+export * from "./gltf-structure/AccessorSparseValues";
+export * from "./gltf-structure/Animation";
+export * from "./gltf-structure/AnimationChannel";
+export * from "./gltf-structure/AnimationChannelTarget";
+export * from "./gltf-structure/AnimationSampler";
+export * from "./gltf-structure/Asset";
+export * from "./gltf-structure/BufferObject";
+export * from "./gltf-structure/BufferView";
+export * from "./gltf-structure/Camera";
+export * from "./gltf-structure/CameraOrthographic";
+export * from "./gltf-structure/CameraPerspective";
+export * from "./gltf-structure/GlTF";
+export * from "./gltf-structure/GlTFChildOfRootProperty";
+export * from "./gltf-structure/GlTFid";
+export * from "./gltf-structure/GlTFProperty";
+export * from "./gltf-structure/Image";
+export * from "./gltf-structure/Material";
+export * from "./gltf-structure/MaterialNormalTextureInfo";
+export * from "./gltf-structure/MaterialOcclusionTextureInfo";
+export * from "./gltf-structure/MaterialPbrMetallicRoughness";
+export * from "./gltf-structure/Mesh";
+export * from "./gltf-structure/MeshPrimitive";
+export * from "./gltf-structure/Node";
+export * from "./gltf-structure/Sampler";
+export * from "./gltf-structure/Scene";
+export * from "./gltf-structure/Skin";
+export * from "./gltf-structure/Texture";
+export * from "./gltf-structure/TextureInfo";