import type { ComputeNode } from 'three/webgpu';
import type { TSLStorageNode, TSLUintInput, TSLVec2Node, TSLVec3Node } from '../../../types/tsl.cjs';
/**
 * Initialization pass for SPH particles.
 * Generates random positions and zero velocities on the GPU.
 */
export declare function computeInitPass(positionsBuffer: TSLStorageNode<'vec3'>, velocitiesBuffer: TSLStorageNode<'vec3'>, domainDimensions: TSLVec3Node, randomSeed: TSLVec2Node, particleCount: TSLUintInput, particleMaxCount: number, is3D: boolean): ComputeNode;