import type { TSLBoolNode, TSLFloatNode, TSLMat4Node, TSLNode, TSLStorageNode, TSLUintNode, TSLVec2Node, TSLVec3Node } from '../../../types/tsl.cjs';
export type SPHGridVectorNode = TSLVec2Node | TSLVec3Node;
export type SPHGridCellNode = TSLNode<'ivec2'> | TSLNode<'ivec3'>;
export interface SPHSpatialGridBuffers {
    cellHashes: TSLStorageNode<'uint'>;
    particleIds: TSLStorageNode<'uint'>;
    cell_offsets: TSLStorageNode<'uint'>;
    cellCursors: TSLStorageNode<'uint'>;
    candidateVisits: TSLStorageNode<'uint'> | null;
}
export interface SPHSpatialGridUniforms {
    grid_cell_size: TSLVec3Node;
    grid_resolution: TSLVec3Node;
    count_cells: TSLUintNode;
    domainDimensions: TSLVec3Node;
    domainMatrix: TSLMat4Node;
    particleCount: TSLUintNode;
    max_particles: TSLUintNode;
    delta?: TSLFloatNode | null;
}
export interface SPHSpatialGrid {
    lookupAlgorithm: 'global' | 'workgroup';
    lookupWorkgroupSize: number;
    gridCellCount: number;
    buffers: SPHSpatialGridBuffers;
    ubos: SPHSpatialGridUniforms;
    positionToCellCoords(position: SPHGridVectorNode, cellSize: SPHGridVectorNode, gridResolution: SPHGridVectorNode, domainDimensions: SPHGridVectorNode): SPHGridCellNode;
    cellKeyToHash(cellCoordinates: SPHGridCellNode, gridResolution: SPHGridVectorNode): TSLUintNode;
}
export type SPHSpatialLookupCallback = (position: TSLVec3Node, velocity: TSLVec3Node, particleIndex: TSLUintNode, particlePosition: TSLVec3Node, distanceSquared: TSLFloatNode) => void;
export interface SPHSpatialLookupFunction {
    (simulation: unknown, index: TSLUintNode, callback: SPHSpatialLookupCallback): void;
}
export type SPHWorkgroupVisit = (particleIndex: TSLUintNode, position: TSLVec3Node, distanceSquared: TSLFloatNode) => void;
export type SPHWorkgroupTraverse = (visit: SPHWorkgroupVisit) => void;
export type SPHWorkgroupSpatialCallback = (active: TSLBoolNode, particleIndex: TSLUintNode, position: TSLVec3Node, velocity: TSLVec3Node, traverse: SPHWorkgroupTraverse) => void;
export interface SPHWorkgroupSpatialForEachFunction {
    (simulation: unknown, callback: SPHWorkgroupSpatialCallback): void;
}
export declare function requireSPHComputeFunction<TFunction extends (...arguments_: never[]) => unknown>(value: unknown, label: string): TFunction;