import { DataSource } from "../core/data-source";
import { VolumeTheme } from "../theme/theme";
export declare class Volume {
    private theme;
    private rgba;
    private pos;
    private volume;
    private volumeCmd;
    private prev;
    private v_max;
    gl: WebGLRenderingContext;
    constructor({ gl }: {
        gl: WebGLRenderingContext;
    });
    applyTheme(t: Partial<VolumeTheme>): void;
    draw({ viewport, source, zoom: x_zoom, origin: x_origin, }: {
        viewport: {
            width: number;
            height: number;
            x: number;
            y: number;
        };
        source: DataSource;
        zoom: number;
        origin: number;
    }): void;
}
export declare function buildVolume({ gl }: {
    gl: WebGLRenderingContext;
}): {
    draw: ({ viewport, source, zoom: x_zoom, origin: x_origin, }: {
        viewport: {
            width: number;
            height: number;
            x: number;
            y: number;
        };
        source: DataSource;
        zoom: number;
        origin: number;
    }) => void;
    theme: Partial<VolumeTheme>;
};