import { Euler, Group, InstancedMesh, Matrix4, Mesh, Quaternion, Vector3, Scene } from 'three';
/**
 * Transformation data for an instance
 */
export interface ITransformationData {
    position: Vector3;
    rotation: Euler;
    quaternion: Quaternion;
    scale: Vector3;
}
/**
 * Converts a Mesh or Group into InstancedMesh(es)
 * Preserves relative transforms within groups
 */
export declare class MeshToInstancedMeshConverter {
    private _sourceMesh;
    private _instanceCount;
    private _meshInfos;
    private _instanceTransforms;
    private _tempMatrix;
    private _tempPosition;
    private _tempQuaternion;
    private _tempScale;
    constructor(sourceMesh: Mesh | Group, instanceCount: number);
    private convertToInstancedMesh;
    private createInstancedMeshFromMesh;
    private resetAllInstances;
    private updateInstanceTransform;
    private applyTransformToMesh;
    /**
     * Set transform for a specific instance
     */
    setInstanceTransform(instanceIndex: number, position: Vector3, rotation: Euler, scale: Vector3): void;
    setInstancePosition(instanceIndex: number, position: Vector3): void;
    setInstanceRotation(instanceIndex: number, rotation: Euler): void;
    setInstanceScale(instanceIndex: number, scale: Vector3): void;
    setInstanceMatrix(instanceIndex: number, matrix: Matrix4): void;
    /**
     * Batch update multiple instances
     */
    setInstanceTransforms(transforms: Array<{
        instanceIndex: number;
        position: Vector3;
        rotation: Euler;
        scale: Vector3;
    }>): void;
    /**
     * Hide an instance by scaling to zero
     */
    hideInstance(instanceIndex: number): void;
    /**
     * Show a previously hidden instance
     */
    showInstance(instanceIndex: number): void;
    /**
     * Add all instanced meshes to a scene
     */
    addToScene(scene: Scene): void;
    /**
     * Remove all instanced meshes from a scene
     */
    removeFromScene(scene: Scene): void;
    /**
     * Get all instanced meshes
     */
    getInstancedMeshes(): InstancedMesh[];
    getInstanceCount(): number;
    getInstanceTransform(instanceIndex: number): ITransformationData | null;
    getMeshCount(): number;
    /**
     * Update GPU render count without resizing internal instance capacity.
     */
    setRenderCount(count: number): void;
    /**
     * Dynamically resize instance count
     */
    setInstanceCount(newCount: number): void;
    /**
     * Dispose all resources
     */
    dispose(): void;
}
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