import { UniformType, UniformValue } from "../../shader/shader";
import type { GLSLUtility } from "../utilities";
import { DefinesName } from "../utilities/defines";
export type SynthValue = number[];
export type Input = {
    type: UniformType;
    name: string;
    default: UniformValue;
    description?: string;
};
export type Inputs = Input[];
export type SanitizeInput = {
    type: UniformType;
    name: string;
    value: (() => UniformValue) | UniformValue;
};
export type SanitizeInputs = SanitizeInput[];
export type GLSLFunctionType = "src" | "color" | "combine" | "coord" | "combineCoord" | "value";
type GLSLFunctionBase = {
    name: string;
    require?: GLSLUtility[];
    defines?: DefinesName[];
    lang?: string;
};
export type GLSLFunctionSource = GLSLFunctionBase & {
    type: GLSLFunctionType;
    inputs?: Inputs | Record<string, UniformValue | (() => UniformValue)>;
    glsl: string;
    transform?: any;
    help?: string;
};
export type GLSLFunctionCode = GLSLFunctionBase & {
    type: "code";
    codeType: GLSLFunctionType;
};
export type GLSLFunction = GLSLFunctionSource | GLSLFunctionCode;
export declare const glsl_functions: GLSLFunction[];
export declare function toArray(input: number | number[] | string, length: number, defaults?: any[]): number[] | string;
export declare function setFunction(fn: GLSLFunction): void;
export {};