import type { AbstractMesh } from "@babylonjs/core/Meshes/abstractMesh.js";
import "@babylonjs/core/Meshes/thinInstanceMesh.js";
import "@babylonjs/core/Meshes/instancedMesh.js";
import type { RuntimeServiceContext, RuntimeServiceInstance } from "./runtime-service-registry.js";
export type InstanceMatrix = readonly number[] | Float32Array;
export interface InstanceBatchService extends RuntimeServiceInstance {
    /** Stable runtime identity; matrices are source-parent-local, column-major. */
    add(id: string, matrix: InstanceMatrix): void;
    update(id: string, matrix: InstanceMatrix): void;
    remove(id: string): boolean;
    ids(): readonly string[];
    /** Regular instances resolve by mesh identity without an index or revision. */
    resolvePick(mesh: AbstractMesh | null): string | null;
    /** Thin instances require the index and revision observed when picking. */
    resolvePick(mesh: AbstractMesh | null, thinInstanceIndex: number, expectedRevision: number): string | null;
}
export declare function prepareInstanceBatch(context: RuntimeServiceContext): InstanceBatchService;
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