import { BufferGeometry, InstancedBufferGeometry, Matrix4 } from 'three';
import { BaseCorePoint } from './entities/point/CorePoint';
import { CoreGroup } from './Group';
export declare enum InstanceAttrib {
    POSITION = "instancePosition",
    SCALE = "instanceScale",
    QUATERNION = "instanceQuaternion",
    COLOR = "instanceColor",
    UV = "instanceUv"
}
export declare class CoreInstancer {
    private _coreGroup?;
    private _is_pscale_present;
    private _is_scale_present;
    private _is_normal_present;
    private _is_up_present;
    private _do_rotate_matrices;
    private _matrixT;
    private _matrixR;
    private _matrixS;
    static transformAttributeNames: string[];
    static remapName(name: string): string;
    constructor(_coreGroup?: CoreGroup | undefined);
    setCoreGroup(coreGroup: CoreGroup): void;
    private _pointScale;
    private _pointNormal;
    private _pointUp;
    matrixFromPoint(point: BaseCorePoint, targetMatrix: Matrix4): void;
    private static _point_color;
    private static _point_uv;
    private static _position;
    private static _quaternion;
    private static _scale;
    private static _tmpMatrix;
    static updateTransformInstanceAttributes(instancePts: BaseCorePoint[], templateCoreGroup: CoreGroup, geometry: InstancedBufferGeometry): void;
    static updateColorInstanceAttribute(instancePts: BaseCorePoint[], templateCoreGroup: CoreGroup, geometry: InstancedBufferGeometry): void;
    static createInstanceBufferGeometry(geometryToInstance: BufferGeometry, templateCoreGroup: CoreGroup, attributesToCopy: string): InstancedBufferGeometry;
}