/**
 * Type augmentations and utilities for three.js r183.
 *
 * Some properties exist at runtime but were removed or changed in @types/three r183.
 * This module provides type-safe access without `as any` casts.
 */
import type { Interpolant, Texture } from 'three';
declare module 'three' {
    interface Material {
        /** Unique ID for this material instance. Exists at runtime via Object.defineProperty. */
        readonly id: number;
    }
    interface KeyframeTrack {
        /** Creates an interpolant for sampling this track. Exists at runtime. */
        createInterpolant(): Interpolant;
    }
}
/** Checks if a texture image has width/height dimensions (ImageBitmap, HTMLImageElement, HTMLCanvasElement, etc.) */
export declare function hasImageDimensions(image: unknown): image is {
    width: number;
    height: number;
};
/** Get the width/height from a texture, checking image, source.data, and direct properties (e.g. render targets) */
export declare function getTextureDimensions(texture: Texture): {
    width: number;
    height: number;
};
/** Checks if a texture image has pixel data (typed array from DataTexture) */
export declare function hasPixelData(image: unknown): image is {
    data: ArrayBufferView;
    width: number;
    height: number;
};
/** Get the source data of a texture as a dimension-bearing object, or null */
export declare function getSourceDimensions(texture: Texture): {
    width: number;
    height: number;
} | null;
/** Checks if a value is a renderable image (ImageBitmap, HTMLImageElement, HTMLCanvasElement, etc.) */
export declare function isTextureImage(image: unknown): image is TexImageSource | OffscreenCanvas;