import { ShaderProgram3D } from '../shader/programs';
import { Waterfall3DData } from './types';

export interface WaterfallOptions {
    maxSlices?: number;
}
export declare class Waterfall3D {
    private gl;
    private vao;
    private positionBuffer;
    private colorBuffer;
    private indexBuffer;
    private vertexCount;
    private indexCount;
    private sliceCount;
    private pointsPerSlice;
    private fillMode;
    constructor(gl: WebGL2RenderingContext, _options?: WaterfallOptions);
    private initBuffers;
    /**
     * Update waterfall data.
     * Each slice is a row of Y values at increasing Z positions.
     */
    updateData(data: Waterfall3DData): void;
    private buildWireframe;
    private buildSolid;
    private applyColormap;
    private viridisColormap;
    private jetColormap;
    private hotColormap;
    /**
     * Add a new slice to the waterfall (for realtime updates).
     * Shifts existing slices back and adds new one at front.
     */
    pushSlice(yValues: Float32Array, data: Waterfall3DData): void;
    render(program: ShaderProgram3D): void;
    destroy(): void;
}