/**
 * Copyright (c) 2018-2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author David Sehnal <david.sehnal@gmail.com>
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 */
import { OrderedSet } from '../../mol-data/int';
import { Mat4, Tensor, Vec3, Vec2 } from '../linear-algebra';
import { Box3D } from '../geometry';
import { Texture } from '../../mol-gl/webgl/texture';
export interface PositionData {
    x: ArrayLike<number>;
    y: ArrayLike<number>;
    z: ArrayLike<number>;
    /** subset of indices into the x/y/z/radius arrays */
    indices: OrderedSet;
    /** optional element radius */
    radius?: ArrayLike<number>;
    /** optional element id */
    id?: ArrayLike<number>;
}
export declare type DensityData = {
    transform: Mat4;
    field: Tensor;
    idField: Tensor;
    resolution: number;
};
export declare type DensityTextureData = {
    transform: Mat4;
    texture: Texture;
    bbox: Box3D;
    gridDim: Vec3;
    gridTexDim: Vec3;
    gridTexScale: Vec2;
};
export interface RegularGrid3d {
    box: Box3D;
    dimensions: Vec3;
}
export declare function getRegularGrid3dDelta({ box, dimensions }: RegularGrid3d): Vec3;
export declare function fillGridDim(length: number, start: number, step: number): Float32Array;