import { Texture } from "three";
export declare const TEXTURE_DEFAULT_TEXTURE: Texture;
export declare const TEXTURE_DEFAULT_SIZE = 2;
/** Rectangle coordinates and dimensions in atlas */
export interface UITextureRect {
    /** X coordinate in pixels */
    x: number;
    /** Y coordinate in pixels */
    y: number;
    /** Width in pixels */
    w: number;
    /** Height in pixels */
    h: number;
}
/** Size dimensions */
export interface UITextureSize {
    /** Width in pixels */
    w: number;
    /** Height in pixels */
    h: number;
}
/** Transparent padding around visible content */
export interface UITextureTrim {
    /** Left padding in world units */
    left: number;
    /** Right padding in world units */
    right: number;
    /** Top padding in world units */
    top: number;
    /** Bottom padding in world units */
    bottom: number;
}
/** Configuration for texture atlas sprite */
export interface UITextureAtlasConfig {
    /** Source texture atlas */
    texture: Texture;
    /** Rectangle in atlas containing sprite */
    frame: UITextureRect;
    /** Whether sprite is rotated 90 degrees clockwise */
    rotated?: boolean;
    /** Position and size within original image before trimming */
    spriteSourceSize: UITextureRect;
    /** Original image dimensions before trimming */
    sourceSize: UITextureSize;
    /** Scale factor for resolution independence */
    scale?: number;
}
/** Texture configuration from direct texture or atlas sprite */
export type UITextureConfig = Texture | UITextureAtlasConfig;