import Cartesian3 from "../Core/Cartesian3.js";
|
import Cartesian4 from "../Core/Cartesian4.js";
|
import Matrix3 from "../Core/Matrix3.js";
|
import AlphaMode from "./AlphaMode.js";
|
|
/**
|
* Components for building models.
|
*
|
* @namespace ModelComponents
|
*
|
* @private
|
*/
|
var ModelComponents = {};
|
|
/**
|
* Information about the quantized attribute.
|
*
|
* @alias ModelComponents.Quantization
|
* @constructor
|
*
|
* @private
|
*/
|
function Quantization() {
|
/**
|
* Whether the quantized attribute is oct-encoded.
|
*
|
* @type {Boolean}
|
* @private
|
*/
|
this.octEncoded = false;
|
|
/**
|
* Whether the oct-encoded values are stored as ZXY instead of XYZ. This is true when decoding from Draco.
|
*
|
* @type {Boolean}
|
*/
|
this.octEncodedZXY = false;
|
|
/**
|
* The range used to convert buffer values to normalized values [0.0, 1.0]
|
* This is typically computed as (1 << quantizationBits) - 1.
|
* For oct-encoded values this value is a single Number.
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.normalizationRange = undefined;
|
|
/**
|
* The bottom-left corner of the quantization volume. Not applicable for oct encoded attributes.
|
* The type should match the attribute type - e.g. if the attribute type
|
* is AttributeType.VEC4 the offset should be a Cartesian4.
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.quantizedVolumeOffset = undefined;
|
|
/**
|
* The dimensions of the quantization volume. Not applicable for oct encoded attributes.
|
* The type should match the attribute type - e.g. if the attribute type
|
* is AttributeType.VEC4 the dimensions should be a Cartesian4.
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.quantizedVolumeDimensions = undefined;
|
|
/**
|
* The step size of the quantization volume, equal to
|
* quantizedVolumeDimensions / quantizedVolumeOffset (component-wise).
|
* Not applicable for oct encoded attributes.
|
* The type should match the attribute type - e.g. if the attribute type
|
* is AttributeType.VEC4 the dimensions should be a Cartesian4.
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.quantizedVolumeStepSize = undefined;
|
|
/**
|
* The component data type of the quantized attribute, e.g. ComponentDatatype.UNSIGNED_SHORT.
|
*
|
* <p>
|
* The following component datatypes are not supported:
|
* <ul>
|
* <li>ComponentDatatype.INT</li>
|
* <li>ComponentDatatype.UNSIGNED_INT</li>
|
* <li>ComponentDatatype.DOUBLE</li>
|
* </ul>
|
* </p>
|
*
|
* @type {ComponentDatatype}
|
* @private
|
*/
|
this.componentDatatype = undefined;
|
|
/**
|
* The type of the quantized attribute, e.g. AttributeType.VEC2 for oct-encoded normals.
|
*
|
* @type {AttributeType}
|
* @private
|
*/
|
this.type = undefined;
|
}
|
|
/**
|
* A per-vertex or per-instance attribute.
|
*
|
* @alias ModelComponents.Attribute
|
* @constructor
|
*
|
* @private
|
*/
|
function Attribute() {
|
/**
|
* The attribute name. Must be unique within the attributes array.
|
*
|
* @type {String}
|
* @private
|
*/
|
this.name = undefined;
|
|
/**
|
* The attribute semantic. The combination of semantic and setIndex must be
|
* unique within the attributes array.
|
*
|
* @type {VertexAttributeSemantic|InstanceAttributeSemantic}
|
* @private
|
*/
|
this.semantic = undefined;
|
|
/**
|
* The set index of the attribute. Only applicable when the attribute has one
|
* of the following semantics:
|
*
|
* <ul>
|
* <li>{@link VertexAttributeSemantic.TEXCOORD}</li>
|
* <li>{@link VertexAttributeSemantic.COLOR}</li>
|
* <li>{@link VertexAttributeSemantic.JOINTS}</li>
|
* <li>{@link VertexAttributeSemantic.WEIGHTS}</li>
|
* <li>{@link VertexAttributeSemantic.FEATURE_ID}</li>
|
* <li>{@link InstanceAttributeSemantic.FEATURE_ID}</li>
|
* </ul>
|
*/
|
this.setIndex = undefined;
|
|
/**
|
* The component data type of the attribute.
|
* <p>
|
* When the data is quantized the componentDatatype should match the
|
* dequantized data, which is typically ComponentDatatype.FLOAT.
|
* </p>
|
* <p>
|
* The following component datatypes are not supported:
|
* <ul>
|
* <li>ComponentDatatype.INT</li>
|
* <li>ComponentDatatype.UNSIGNED_INT</li>
|
* <li>ComponentDatatype.DOUBLE</li>
|
* </ul>
|
* </p>
|
*
|
* @type {ComponentDatatype}
|
* @private
|
*/
|
this.componentDatatype = undefined;
|
|
/**
|
* The type of the attribute.
|
* <p>
|
* When the data is oct-encoded the type should match the decoded data, which
|
* is typically AttributeType.VEC3.
|
* </p>
|
*
|
* @type {AttributeType}
|
* @private
|
*/
|
this.type = undefined;
|
|
/**
|
* Whether the attribute is normalized.
|
*
|
* @type {Boolean}
|
* @default false
|
* @private
|
*/
|
this.normalized = false;
|
|
/**
|
* The number of elements.
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.count = undefined;
|
|
/**
|
* Minimum value of each component in the attribute.
|
* <p>
|
* When the data is quantized the min should match the dequantized data.
|
* The normalized property has no effect on these values.
|
* </p>
|
* <p>
|
* Must be defined for POSITION attributes.
|
* </p>
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.min = undefined;
|
|
/**
|
* Maximum value of each component in the attribute.
|
* <p>
|
* When the data is quantized the max should match the dequantized data.
|
* The normalized property has no effect on these values.
|
* </p>
|
* <p>
|
* Must be defined for POSITION attributes.
|
* </p>
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.max = undefined;
|
|
/**
|
* A constant value used for all elements when typed array and buffer are undefined.
|
*
|
* @type {Number|Cartesian2|Cartesian3|Cartesian4|Matrix2|Matrix3|Matrix4}
|
* @private
|
*/
|
this.constant = undefined;
|
|
/**
|
* Information about the quantized attribute.
|
*
|
* @type {ModelComponents.Quantization}
|
* @private
|
*/
|
this.quantization = undefined;
|
|
/**
|
* A typed array containing tightly-packed attribute values.
|
*
|
* @type {Uint8Array|Int8Array|Uint16Array|Int16Array|Uint32Array|Int32Array|Float32Array}
|
* @private
|
*/
|
this.packedTypedArray = undefined;
|
|
/**
|
* A vertex buffer. Attribute values are accessed using byteOffset and byteStride.
|
*
|
* @type {Buffer}
|
* @private
|
*/
|
this.buffer = undefined;
|
|
/**
|
* A typed array containing vertex buffer data. Attribute values are accessed using byteOffset and byteStride.
|
*
|
* @type {Uint8Array}
|
* @private
|
*/
|
this.typedArray = undefined;
|
|
/**
|
* The byte offset of elements in the buffer.
|
*
|
* @type {Number}
|
* @default 0
|
* @private
|
*/
|
this.byteOffset = 0;
|
|
/**
|
* The byte stride of elements in the buffer. When undefined the elements are tightly packed.
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.byteStride = undefined;
|
}
|
|
/**
|
* Indices used to select vertices for rendering.
|
*
|
* @alias ModelComponents.Indices
|
* @constructor
|
*
|
* @private
|
*/
|
function Indices() {
|
/**
|
* The index data type of the attribute, e.g. IndexDatatype.UNSIGNED_SHORT.
|
*
|
* @type {IndexDatatype}
|
* @private
|
*/
|
this.indexDatatype = undefined;
|
|
/**
|
* The number of indices.
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.count = undefined;
|
|
/**
|
* An index buffer containing indices.
|
*
|
* @type {Buffer}
|
* @private
|
*/
|
this.buffer = undefined;
|
|
/**
|
* A typed array containing indices.
|
*
|
* @type {Uint8Array|Uint16Array|Uint32Array}
|
* @private
|
*/
|
this.typedArray = undefined;
|
}
|
|
/**
|
* Maps per-vertex or per-instance feature IDs to a feature table. Feature IDs
|
* may be stored in an attribute or implicitly defined by a constant and stride.
|
*
|
* @alias ModelComponents.FeatureIdAttribute
|
* @constructor
|
*
|
* @private
|
*/
|
function FeatureIdAttribute() {
|
/**
|
* The ID of the feature table that feature IDs index into. If undefined,
|
* feature IDs are used for classification, but no metadata is associated.
|
*
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.propertyTableId = undefined;
|
|
/**
|
* The set index of feature ID attribute containing feature IDs.
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.setIndex = undefined;
|
|
/**
|
* The first feature ID to use when setIndex is undefined
|
*
|
* @type {Number}
|
* @default 0
|
* @private
|
*/
|
this.offset = 0;
|
|
/**
|
* Number of times each feature ID is repeated before being incremented.
|
*
|
* @type {Number}
|
* @private
|
*/
|
this.repeat = undefined;
|
}
|
|
/**
|
* A texture that contains per-texel feature IDs that index into a feature table.
|
*
|
* @alias ModelComponents.FeatureIdTexture
|
* @constructor
|
*
|
* @private
|
*/
|
function FeatureIdTexture() {
|
/**
|
* The ID of the feature table that feature IDs index into.
|
*
|
* @type {String}
|
* @private
|
*/
|
this.propertyTableId = undefined;
|
|
/**
|
* The texture reader containing feature IDs.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.textureReader = undefined;
|
}
|
|
/**
|
* A morph target where each attribute contains attribute displacement data.
|
*
|
* @alias ModelComponents.MorphTarget
|
* @constructor
|
*
|
* @private
|
*/
|
function MorphTarget() {
|
/**
|
* Attributes that are part of the morph target, e.g. positions, normals, and tangents.
|
*
|
* @type {ModelComponents.Attribute[]}
|
* @private
|
*/
|
this.attributes = [];
|
}
|
|
/**
|
* Geometry to be rendered with a material.
|
*
|
* @alias ModelComponents.Primitive
|
* @constructor
|
*
|
* @private
|
*/
|
function Primitive() {
|
/**
|
* The vertex attributes, e.g. positions, normals, etc.
|
*
|
* @type {ModelComponents.Attribute[]}
|
* @private
|
*/
|
this.attributes = [];
|
|
/**
|
* The morph targets.
|
*
|
* @type {ModelComponents.MorphTarget[]}
|
* @private
|
*/
|
this.morphTargets = [];
|
|
/**
|
* An array of weights to be applied to morph targets.
|
*
|
* @type {Number[]}
|
* @private
|
*/
|
this.morphWeights = [];
|
|
/**
|
* The indices.
|
*
|
* @type {ModelComponents.Indices}
|
* @private
|
*/
|
this.indices = undefined;
|
|
/**
|
* The material.
|
*
|
* @type {ModelComponents.Material}
|
* @private
|
*/
|
this.material = undefined;
|
|
/**
|
* The primitive type, e.g. PrimitiveType.TRIANGLES.
|
*
|
* @type {PrimitiveType}
|
* @private
|
*/
|
this.primitiveType = undefined;
|
|
/**
|
* The feature ID attributes.
|
*
|
* @type {ModelComponents.FeatureIdAttribute[]}
|
* @private
|
*/
|
this.featureIdAttributes = [];
|
|
/**
|
* The feature ID textures.
|
*
|
* @type {ModelComponents.FeatureIdTexture[]}
|
* @private
|
*/
|
this.featureIdTextures = [];
|
|
/**
|
* The feature texture IDs. These indices correspond to the array of
|
* feature textures.
|
*
|
* @type {Number[]}
|
* @private
|
*/
|
this.featureTextureIds = [];
|
}
|
|
/**
|
* Position and metadata information for instances of a node.
|
*
|
* @alias ModelComponents.Primitive
|
* @constructor
|
*
|
* @private
|
*/
|
function Instances() {
|
/**
|
* The instance attributes, e.g. translation, rotation, scale, feature id, etc.
|
*
|
* @type {ModelComponents.Attribute[]}
|
* @private
|
*/
|
this.attributes = [];
|
|
/**
|
* The feature ID attributes.
|
*
|
* @type {ModelComponents.FeatureIdAttribute[]}
|
* @private
|
*/
|
this.featureIdAttributes = [];
|
}
|
|
/**
|
* Joints and matrices defining a skin.
|
*
|
* @alias ModelComponents.Skin
|
* @constructor
|
*
|
* @private
|
*/
|
function Skin() {
|
/**
|
* The joints.
|
*
|
* @type {ModelComponents.Node[]}
|
* @private
|
*/
|
this.joints = undefined;
|
|
/**
|
* The inverse bind matrices of the joints.
|
*
|
* @type {Matrix4[]}
|
* @private
|
*/
|
this.inverseBindMatrices = undefined;
|
}
|
|
/**
|
* A node in the node hierarchy.
|
*
|
* @alias ModelComponents.Node
|
* @constructor
|
*
|
* @private
|
*/
|
function Node() {
|
/**
|
* The children nodes.
|
*
|
* @type {ModelComponents.Node[]}
|
* @private
|
*/
|
this.children = [];
|
|
/**
|
* The mesh primitives.
|
*
|
* @type {ModelComponents.Primitive[]}
|
* @private
|
*/
|
this.primitives = [];
|
|
/**
|
* Instances of this node.
|
*
|
* @type {ModelComponents.Instances}
|
* @private
|
*/
|
this.instances = undefined;
|
|
/**
|
* The skin.
|
*
|
* @type {ModelComponents.Skin}
|
* @private
|
*/
|
this.skin = undefined;
|
|
/**
|
* The local transformation matrix. When matrix is defined translation,
|
* rotation, and scale must be undefined. When matrix is undefined
|
* translation, rotation, and scale must all be defined.
|
*
|
* @type {Matrix4}
|
* @private
|
*/
|
this.matrix = undefined;
|
|
/**
|
* The local translation.
|
*
|
* @type {Cartesian3}
|
* @private
|
*/
|
this.translation = undefined;
|
|
/**
|
* The local rotation.
|
*
|
* @type {Quaternion}
|
* @private
|
*/
|
this.rotation = undefined;
|
|
/**
|
* The local scale.
|
*
|
* @type {Cartesian3}
|
* @private
|
*/
|
this.scale = undefined;
|
}
|
|
/**
|
* A scene containing nodes.
|
*
|
* @alias ModelComponents.Scene
|
* @constructor
|
*
|
* @private
|
*/
|
function Scene() {
|
/**
|
* The nodes belonging to the scene.
|
*
|
* @type {ModelComponents.Node[]}
|
* @private
|
*/
|
this.nodes = [];
|
|
/**
|
* The scene's up axis.
|
*
|
* @type {Axis}
|
* @private
|
*/
|
this.upAxis = undefined;
|
|
/**
|
* The scene's forward axis.
|
*
|
* @type {Axis}
|
* @private
|
*/
|
this.forwardAxis = undefined;
|
}
|
|
/**
|
* The components that make up a model.
|
*
|
* @alias ModelComponents.Components
|
* @constructor
|
*
|
* @private
|
*/
|
function Components() {
|
/**
|
* The default scene.
|
*
|
* @type {ModelComponents.Scene}
|
* @private
|
*/
|
this.scene = undefined;
|
|
/**
|
* All nodes in the model.
|
*
|
* @type {ModelComponents.Node[]}
|
*/
|
this.nodes = undefined;
|
|
/**
|
* Feature metadata containing the schema, feature tables, and feature textures.
|
*
|
* @type {FeatureMetadata}
|
* @private
|
*/
|
this.featureMetadata = undefined;
|
}
|
|
/**
|
* Information about a GPU texture, including the texture itself
|
*
|
* @alias ModelComponents.TextureReader
|
* @constructor
|
*
|
* @private
|
*/
|
function TextureReader() {
|
/**
|
* The underlying GPU texture. The {@link Texture} contains the sampler.
|
*
|
* @type {Texture}
|
* @private
|
*/
|
this.texture = undefined;
|
|
/**
|
* The texture coordinate set.
|
*
|
* @type {Number}
|
* @default 0
|
* @private
|
*/
|
this.texCoord = 0;
|
|
/**
|
* Transformation matrix to apply to texture coordinates.
|
*
|
* @type {Matrix3}
|
* @default Matrix3.IDENTITY
|
*/
|
this.transform = Matrix3.clone(Matrix3.IDENTITY);
|
|
/**
|
* The texture channels to read from. When undefined all channels are read.
|
*
|
* @type {String}
|
*/
|
this.channels = undefined;
|
}
|
|
/**
|
* Material properties for the PBR metallic roughness shading model.
|
*
|
* @alias ModelComponents.MetallicRoughness
|
* @constructor
|
*
|
* @private
|
*/
|
function MetallicRoughness() {
|
/**
|
* The base color texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.baseColorTexture = undefined;
|
|
/**
|
* The metallic roughness texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.metallicRoughnessTexture = undefined;
|
|
/**
|
* The base color factor.
|
*
|
* @type {Cartesian4}
|
* @default new Cartesian4(1.0, 1.0, 1.0, 1.0)
|
* @private
|
*/
|
this.baseColorFactor = Cartesian4.clone(
|
MetallicRoughness.DEFAULT_BASE_COLOR_FACTOR
|
);
|
|
/**
|
* The metallic factor.
|
*
|
* @type {Number}
|
* @default 1.0
|
* @private
|
*/
|
this.metallicFactor = MetallicRoughness.DEFAULT_METALLIC_FACTOR;
|
|
/**
|
* The roughness factor.
|
*
|
* @type {Number}
|
* @default 1.0
|
* @private
|
*/
|
this.roughnessFactor = MetallicRoughness.DEFAULT_ROUGHNESS_FACTOR;
|
}
|
|
/**
|
* @private
|
*/
|
MetallicRoughness.DEFAULT_BASE_COLOR_FACTOR = Cartesian4.ONE;
|
|
/**
|
* @private
|
*/
|
MetallicRoughness.DEFAULT_METALLIC_FACTOR = 1.0;
|
|
/**
|
* @private
|
*/
|
MetallicRoughness.DEFAULT_ROUGHNESS_FACTOR = 1.0;
|
|
/**
|
* Material properties for the PBR specular glossiness shading model.
|
*
|
* @alias ModelComponents.function SpecularGlossiness
|
* @constructor
|
*
|
* @private
|
*/
|
function SpecularGlossiness() {
|
/**
|
* The diffuse texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.diffuseTexture = undefined;
|
|
/**
|
* The specular glossiness texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.specularGlossinessTexture = undefined;
|
|
/**
|
* The diffuse factor.
|
*
|
* @type {Cartesian4}
|
* @default new Cartesian4(1.0, 1.0, 1.0, 1.0)
|
* @private
|
*/
|
this.diffuseFactor = Cartesian4.clone(
|
SpecularGlossiness.DEFAULT_DIFFUSE_FACTOR
|
);
|
|
/**
|
* The specular factor.
|
*
|
* @type {Cartesian3}
|
* @default new Cartesian3(1.0, 1.0, 1.0)
|
* @private
|
*/
|
this.specularFactor = Cartesian3.clone(
|
SpecularGlossiness.DEFAULT_SPECULAR_FACTOR
|
);
|
|
/**
|
* The glossiness factor.
|
*
|
* @type {Number}
|
* @default 1.0
|
* @private
|
*/
|
this.glossinessFactor = SpecularGlossiness.DEFAULT_GLOSSINESS_FACTOR;
|
}
|
|
/**
|
* @private
|
*/
|
SpecularGlossiness.DEFAULT_DIFFUSE_FACTOR = Cartesian4.ONE;
|
|
/**
|
* @private
|
*/
|
SpecularGlossiness.DEFAULT_SPECULAR_FACTOR = Cartesian3.ONE;
|
|
/**
|
* @private
|
*/
|
SpecularGlossiness.DEFAULT_GLOSSINESS_FACTOR = 1.0;
|
|
/**
|
* The material appearance of a primitive.
|
*
|
* @alias ModelComponent.Material
|
* @constructor
|
*
|
* @private
|
*/
|
function Material() {
|
/**
|
* Material properties for the PBR metallic roughness shading model.
|
*
|
* @type {ModelComponents.MetallicRoughness}
|
* @private
|
*/
|
this.metallicRoughness = new MetallicRoughness();
|
|
/**
|
* Material properties for the PBR specular glossiness shading model.
|
*
|
* @type {ModelComponents.SpecularGlossiness}
|
* @private
|
*/
|
this.specularGlossiness = undefined;
|
|
/**
|
* The emissive texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.emissiveTexture = undefined;
|
|
/**
|
* The normal texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.normalTexture = undefined;
|
|
/**
|
* The occlusion texture reader.
|
*
|
* @type {ModelComponents.TextureReader}
|
* @private
|
*/
|
this.occlusionTexture = undefined;
|
|
/**
|
* The emissive factor.
|
*
|
* @type {Cartesian3}
|
* @default Cartesian3.ZERO
|
* @private
|
*/
|
this.emissiveFactor = Cartesian3.clone(Material.DEFAULT_EMISSIVE_FACTOR);
|
|
/**
|
* The alpha mode.
|
*
|
* @type {AlphaMode}
|
* @default AlphaMode.OPAQUE
|
* @private
|
*/
|
this.alphaMode = AlphaMode.OPAQUE;
|
|
/**
|
* The alpha cutoff value of the material for the MASK alpha mode.
|
*
|
* @type {Number}
|
* @default 0.5
|
* @private
|
*/
|
this.alphaCutoff = 0.5;
|
|
/**
|
* Specifies whether the material is double sided.
|
*
|
* @type {Boolean}
|
* @default false
|
* @private
|
*/
|
this.doubleSided = false;
|
|
/**
|
* Specifies whether the material is unlit.
|
*
|
* @type {Boolean}
|
* @default false
|
* @private
|
*/
|
this.unlit = false;
|
}
|
|
/**
|
* @private
|
*/
|
Material.DEFAULT_EMISSIVE_FACTOR = Cartesian3.ZERO;
|
|
ModelComponents.Quantization = Quantization;
|
ModelComponents.Attribute = Attribute;
|
ModelComponents.Indices = Indices;
|
ModelComponents.FeatureIdAttribute = FeatureIdAttribute;
|
ModelComponents.FeatureIdTexture = FeatureIdTexture;
|
ModelComponents.MorphTarget = MorphTarget;
|
ModelComponents.Primitive = Primitive;
|
ModelComponents.Instances = Instances;
|
ModelComponents.Skin = Skin;
|
ModelComponents.Node = Node;
|
ModelComponents.Scene = Scene;
|
ModelComponents.Components = Components;
|
ModelComponents.TextureReader = TextureReader;
|
ModelComponents.MetallicRoughness = MetallicRoughness;
|
ModelComponents.SpecularGlossiness = SpecularGlossiness;
|
ModelComponents.Material = Material;
|
|
export default ModelComponents;
|
