import type { FieldVec3, MeshDistanceField } from '@forgeax/engine-types';
/** Combined indirection and f32 payload budget, independent of virtual volume size. */
export declare const MAX_DISTANCE_FIELD_BYTES: number;
/** First lattice sample of brick `index`; bricks hold 4^3 samples in x-fastest order. */
export declare function fieldBrickStart(dimensions: FieldVec3, index: number): FieldVec3;
/** Lane holding brick sample (i, j, k): the sample itself inside the volume, the clamped edge sample in padding. */
export declare function fieldBrickLane(dimensions: FieldVec3, start: FieldVec3, i: number, j: number, k: number): number;
/**
 * Build-time storage; full word comparison resolves hash collisions, including signed zero.
 * Producers write in-volume lanes only: `store` replicates edge samples into padded lanes.
 */
export declare class FieldBrickBuilder {
    readonly bricks: Uint32Array;
    private readonly dimensions;
    private values;
    private words;
    private used;
    private readonly chains;
    constructor(dimensions: FieldVec3);
    store(index: number, values: Float32Array): boolean;
    finish(): Pick<MeshDistanceField, 'bricks' | 'values'>;
}
/** Exact lattice sample; callers use validated dimensions and coordinates. */
export declare function distanceFieldTexel(field: Pick<MeshDistanceField, 'dimensions' | 'bricks' | 'values'>, x: number, y: number, z: number): number;
/** Geometric fields keep their exact dense computation, then publish the same brick contract. */
export declare function brickDistanceFieldValues(dimensions: FieldVec3, values: Float32Array): Pick<MeshDistanceField, 'bricks' | 'values'> | null;
/** Validate addresses, exact edge padding and the logical negative-sample count. */
export declare function fieldBrickNegativeSamples(field: MeshDistanceField): number | null;
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