nanogl-gltf/lib/elements/AnimationChannel.d.ts

gltf loader

import AnimationSampler, { SamplerEvaluator } from './AnimationSampler';
import Node from './Node';
import Gltf2 from '../types/Gltf2';
import GltfLoader from '../io/GltfLoader';
import GltfTypes from '../types/GltfTypes';
import { IElement } from '../types/Elements';
import { TypedArray } from '../types/TypedArray';
export declare type applyFunc = (node: Node, value: TypedArray) => void;
/**
 * The AnimationChannel element contains the data to animate a node property.
 */
export default class AnimationChannel implements IElement {
    readonly gltftype: GltfTypes.ANIMATION_CHANNEL;
    name: undefined | string;
    extras: any;
    /**
     * Whether the channel is active or not
     */
    _active: boolean;
    /**
     * Linked AnimationSampler
     */
    sampler: AnimationSampler;
    /**
     * Node's property to animate (TRASLATION, ROTATION, SCALE or WEIGHTS)
     */
    path: Gltf2.AnimationChannelTargetPath;
    /**
     * Function to apply the animation value to the corresponding node property
     * (and manage node invalidation for translation, rotation and scale animation)
     */
    applyFunction: applyFunc;
    /**
     * Node to animate
     */
    node: Node;
    /**
     * TypedArray to store the animation value at each re-evaluate
     */
    valueHolder: TypedArray;
    /**
     * SamplerEvaluator to use to evaluate the animation value at a given time
     */
    evaluator: SamplerEvaluator;
    /**
     * Parse the AnimationChannel data, create the SamplerEvaluator and the valueHolder.
     *
     * Is async as it needs to wait for the target Node to be created.
     * @param gltfLoader GLTFLoader to use
     * @param data Data to parse
     */
    parse(gltfLoader: GltfLoader, data: Gltf2.IAnimationChannel): Promise<any>;
    /**
     * Evaluate the animation at a given time, and apply the animation value to the corresponding node property,
     * with the corresponding interpolation function.
     * @param t Time to evaluate the animation at
     */
    evaluate(t: number): void;
}