/**
 * computes the gradient of an SDF function
 *
 * @remarks
 *
 * The SDF function can be generated from nodes created inside this node.
 *
 *
 * The computation is based on [https://www.iquilezles.org/www/articles/normalsSDF/normalsSDF.htm](https://www.iquilezles.org/www/articles/normalsSDF/normalsSDF.htm)
 */
import { TypedSubnetGlNode } from './Subnet';
import { GlConnectionPointType } from '../utils/io/connections/Gl';
import { NodeParamsConfig } from '../utils/params/ParamsConfig';
import { ShadersCollectionController } from './code/utils/ShadersCollectionController';
import { SubnetOutputGlNode } from './SubnetOutput';
import { SubnetInputGlNode } from './SubnetInput';
import { GlType } from '../../poly/registers/nodes/types/Gl';
declare const SDFGradientGlParamsConfig_base: {
    new (...args: any[]): {
        inputs: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.FOLDER>;
        inputsCount: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputType0: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName0: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType1: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName1: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType2: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName2: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType3: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName3: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType4: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName4: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType5: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName5: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType6: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName6: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType7: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName7: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType8: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName8: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        inputType9: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.INTEGER>;
        inputName9: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.STRING>;
        spare: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.FOLDER>;
    };
} & typeof NodeParamsConfig;
declare class SDFGradientGlParamsConfig extends SDFGradientGlParamsConfig_base {
    epsilon: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.FLOAT>;
}
export declare class SDFGradientGlNode extends TypedSubnetGlNode<SDFGradientGlParamsConfig> {
    paramsConfig: SDFGradientGlParamsConfig;
    static type(): Readonly<GlType.SDF_GRADIENT>;
    protected _expectedInputsCount(): number;
    protected _expectedInputTypes(): GlConnectionPointType[];
    protected _expectedOutputTypes(): GlConnectionPointType[];
    protected _expectedInputName(index: number): string;
    protected _expectedOutputName(index: number): string;
    childExpectedOutputConnectionPointTypes(): GlConnectionPointType[];
    childExpectedOutputConnectionPointName(index: number): string;
    setSubnetInputLines(shadersCollectionController: ShadersCollectionController, childNode: SubnetInputGlNode): void;
    setSubnetOutputLines(shadersCollectionController: ShadersCollectionController, childNode: SubnetOutputGlNode): void;
    setLines(shadersCollectionController: ShadersCollectionController): void;
    private _declareFunctions;
    private _callFunctions;
}
export {};