import { ShaderDefineValue } from '../Shader';
import GLProgram from './GLProgram';
import GLPipeline, { GLMaterialObject, GLRenderableObject } from './GLPipeline';
export declare function defaultGetMaterialProgramKey(vertexDefines: Record<string, ShaderDefineValue>, fragmentDefines: Record<string, ShaderDefineValue>, enabledTextures: string[]): string;
declare class ProgramManager {
    private _pipeline;
    private _cache;
    private _parallelExt;
    constructor(renderer: GLPipeline, parallelExt: any);
    getProgram(renderable: GLRenderableObject, material: GLMaterialObject, extraKey: string, extraDefines?: Record<string, ShaderDefineValue>): GLProgram;
    isAllProgramCompiled(): boolean;
}
export default ProgramManager;