import type * as THREE from 'three';
/**
 * Dispose a material and every texture it references. Frees all Texture-shaped
 * properties (`map`, `normalMap`, …), every texture-valued shader uniform, and
 * finally the material itself.
 */
export declare function disposeMaterial(mat: THREE.Material): void;
/**
 * Recursively free GPU resources under `root`: every geometry plus every
 * material (and its textures, via {@link disposeMaterial}). Call on teardown,
 * route change, or quality-tier change — three.js never auto-disposes.
 *
 * @remarks Disposes everything it finds, including shared/pooled materials, so
 * keep pooled resources out of trees you pass here. Does not detach `root`
 * from its parent.
 */
export declare function disposeScene(root: THREE.Object3D): void;
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