import type { AnimationGroup } from "@babylonjs/core/Animations/animationGroup.js";
import type { Skeleton } from "@babylonjs/core/Bones/skeleton.js";
import type { Material } from "@babylonjs/core/Materials/material.js";
import type { TransformNode } from "@babylonjs/core/Meshes/transformNode.js";
import type { Buffer, VertexBuffer } from "@babylonjs/core/Buffers/buffer.js";
import type { AbstractMesh } from "@babylonjs/core/Meshes/abstractMesh.js";
import type { Mesh } from "@babylonjs/core/Meshes/mesh.js";
import type { Camera } from "@babylonjs/core/Cameras/camera.js";
import type { Light } from "@babylonjs/core/Lights/light.js";
import type * as GLTF2 from "babylonjs-gltf2interface";
/**
 * Loader interface with an index field.
 */
export interface IArrayItem {
    /**
     * The index of this item in the array.
     */
    index: number;
}
/**
 * Loader interface with additional members.
 */
export interface IAccessor extends GLTF2.IAccessor, IArrayItem {
    /** @internal */
    _data?: Promise<ArrayBufferView>;
    /** @internal */
    _babylonVertexBuffer?: {
        [kind: string]: Promise<VertexBuffer>;
    };
}
/**
 * Loader interface with additional members.
 */
export interface IAnimationChannel extends GLTF2.IAnimationChannel, IArrayItem {
}
/** @internal */
export interface _IAnimationSamplerData {
    /** @internal */
    input: Float32Array;
    /** @internal */
    interpolation: GLTF2.AnimationSamplerInterpolation;
    /** @internal */
    output: Float32Array;
}
/**
 * Loader interface with additional members.
 */
export interface IAnimationSampler extends GLTF2.IAnimationSampler, IArrayItem {
    /** @internal */
    _data?: Promise<_IAnimationSamplerData>;
}
/**
 * Loader interface with additional members.
 */
export interface IAnimation extends GLTF2.IAnimation, IArrayItem {
    /** @internal */
    channels: IAnimationChannel[];
    /** @internal */
    samplers: IAnimationSampler[];
    /** @internal */
    _babylonAnimationGroup?: AnimationGroup;
}
/**
 * Loader interface with additional members.
 */
export interface IBuffer extends GLTF2.IBuffer, IArrayItem {
    /** @internal */
    _data?: Promise<ArrayBufferView>;
}
/**
 * Loader interface with additional members.
 */
export interface IBufferView extends GLTF2.IBufferView, IArrayItem {
    /** @internal */
    _data?: Promise<ArrayBufferView>;
    /** @internal */
    _babylonBuffer?: Promise<Buffer>;
}
/**
 * Loader interface with additional members.
 */
export interface ICamera extends GLTF2.ICamera, IArrayItem {
    /** @internal */
    _babylonCamera?: Camera;
}
/**
 * Loader interface with additional members.
 */
export interface IImage extends GLTF2.IImage, IArrayItem {
    /** @internal */
    _data?: Promise<ArrayBufferView>;
}
/**
 * Loader interface with additional members.
 */
export interface IMaterialNormalTextureInfo extends GLTF2.IMaterialNormalTextureInfo, ITextureInfo {
}
/**
 * Loader interface with additional members.
 */
export interface IMaterialOcclusionTextureInfo extends GLTF2.IMaterialOcclusionTextureInfo, ITextureInfo {
}
/**
 * Loader interface with additional members.
 */
export interface IMaterialPbrMetallicRoughness extends GLTF2.IMaterialPbrMetallicRoughness {
    /** @internal */
    baseColorTexture?: ITextureInfo;
    /** @internal */
    metallicRoughnessTexture?: ITextureInfo;
}
/**
 * Loader interface with additional members.
 */
export interface IMaterial extends GLTF2.IMaterial, IArrayItem {
    /** @internal */
    pbrMetallicRoughness?: IMaterialPbrMetallicRoughness;
    /** @internal */
    normalTexture?: IMaterialNormalTextureInfo;
    /** @internal */
    occlusionTexture?: IMaterialOcclusionTextureInfo;
    /** @internal */
    emissiveTexture?: ITextureInfo;
    /** @internal */
    _data?: {
        [babylonDrawMode: number]: {
            babylonMaterial: Material;
            babylonMeshes: AbstractMesh[];
            promise: Promise<void>;
        };
    };
}
/**
 * Loader interface with additional members.
 */
export interface IMesh extends GLTF2.IMesh, IArrayItem {
    /** @internal */
    primitives: IMeshPrimitive[];
}
/**
 * Loader interface with additional members.
 */
export interface IMeshPrimitive extends GLTF2.IMeshPrimitive, IArrayItem {
    /** @internal */
    _instanceData?: {
        babylonSourceMesh: Mesh;
        promise: Promise<any>;
    };
}
/**
 * Loader interface with additional members.
 */
export interface INode extends GLTF2.INode, IArrayItem {
    /** @internal */
    parent?: INode;
    /** @internal */
    _babylonTransformNode?: TransformNode;
    /** @internal */
    _babylonTransformNodeForSkin?: TransformNode;
    /** @internal */
    _primitiveBabylonMeshes?: AbstractMesh[];
    /** @internal */
    _numMorphTargets?: number;
}
/** @internal */
export interface _ISamplerData {
    /** @internal */
    noMipMaps: boolean;
    /** @internal */
    samplingMode: number;
    /** @internal */
    wrapU: number;
    /** @internal */
    wrapV: number;
}
/**
 * Loader interface with additional members.
 */
export interface ISampler extends GLTF2.ISampler, IArrayItem {
    /** @internal */
    _data?: _ISamplerData;
}
/**
 * Loader interface with additional members.
 */
export interface IScene extends GLTF2.IScene, IArrayItem {
}
/**
 * Loader interface with additional members.
 */
export interface ISkin extends GLTF2.ISkin, IArrayItem {
    /** @internal */
    _data?: {
        babylonSkeleton: Skeleton;
        promise: Promise<void>;
    };
}
/**
 * Loader interface with additional members.
 */
export interface ITexture extends GLTF2.ITexture, IArrayItem {
    /** @internal */
    _textureInfo: ITextureInfo;
}
/**
 * Loader interface with additional members.
 */
export interface ITextureInfo extends GLTF2.ITextureInfo {
    /** false or undefined if the texture holds color data (true if data are roughness, normal, ...) */
    nonColorData?: boolean;
}
/**
 * Loader interface with additional members.
 */
export interface IGLTF extends GLTF2.IGLTF {
    /** @internal */
    accessors?: IAccessor[];
    /** @internal */
    animations?: IAnimation[];
    /** @internal */
    buffers?: IBuffer[];
    /** @internal */
    bufferViews?: IBufferView[];
    /** @internal */
    cameras?: ICamera[];
    /** @internal */
    images?: IImage[];
    /** @internal */
    materials?: IMaterial[];
    /** @internal */
    meshes?: IMesh[];
    /** @internal */
    nodes?: INode[];
    /** @internal */
    samplers?: ISampler[];
    /** @internal */
    scenes?: IScene[];
    /** @internal */
    skins?: ISkin[];
    /** @internal */
    textures?: ITexture[];
}
/**
 * Loader interface with additional members.
 */
export interface IKHRLightsPunctual_Light extends GLTF2.IKHRLightsPunctual_Light, IArrayItem {
    /** @hidden */
    _babylonLight?: Light;
}