import type { ComputeNode } from 'three/webgpu';
import type { TSLFloatNode, TSLStorageNode } from '../../../types/tsl.js';
export interface PBFVorticitySpatialGrid {
    buffers: {
        cellHashes: TSLStorageNode<'uint'>;
        particleIds: TSLStorageNode<'uint'>;
        cell_offsets: TSLStorageNode<'uint'>;
    };
    ubos: unknown;
    positionToCellCoords: unknown;
    cellKeyToHash: unknown;
}
export interface PBFVorticityConfinementPassOptions {
    positions: TSLStorageNode<'vec3'>;
    velocities: TSLStorageNode<'vec3'>;
    densities: TSLStorageNode<'float'>;
    vorticities: TSLStorageNode<'vec3'>;
    velocityDeltas: TSLStorageNode<'vec3'>;
    particleCount: number;
    mass: TSLFloatNode;
    h: TSLFloatNode;
    spiky: TSLFloatNode;
    strength: TSLFloatNode;
    deltaTime: TSLFloatNode;
    grid: PBFVorticitySpatialGrid | null;
    is3D: boolean;
}
export interface PBFVorticityConfinementPasses {
    computeVorticity: ComputeNode;
    computeConfinementDelta: ComputeNode;
}
/** Create PBF vorticity and confinement velocity-delta passes. */
export declare function createVorticityConfinementPasses({ positions, velocities, densities, vorticities, velocityDeltas, particleCount, mass, h, spiky, strength, deltaTime, grid, is3D, }: PBFVorticityConfinementPassOptions): PBFVorticityConfinementPasses;