import { DiffuseBasicMethod, _Shader_DiffuseBasicMethod } from './DiffuseBasicMethod';
/**
 * DiffuseWrapMethod is an alternative to DiffuseBasicMethod in which the light is allowed to be "wrapped around" the normally dark area, to some extent.
 * It can be used as a crude approximation to Oren-Nayar or simple subsurface scattering.
 */
export declare class DiffuseWrapMethod extends DiffuseBasicMethod {
    private _wrapFactor;
    static assetType: string;
    /**
     * @inheritDoc
     */
    get assetType(): string;
    /**
     * A factor to indicate the amount by which the light is allowed to wrap.
     */
    get wrapFactor(): number;
    set wrapFactor(value: number);
    /**
     * Creates a new DiffuseWrapMethod object.
     * @param wrapFactor A factor to indicate the amount by which the light is allowed to wrap
     */
    constructor(wrapFactor?: number);
}
import { ShaderRegisterCache, ShaderRegisterData, ShaderRegisterElement } from '@awayjs/stage';
import { LightingShader } from '../shaders/LightingShader';
/**
 * _Shader_DiffuseWrapMethod is an alternative to _Shader_DiffuseBasicMethod in which the light is allowed to be "wrapped around" the normally dark area, to some extent.
 * It can be used as a crude approximation to Oren-Nayar or simple subsurface scattering.
 */
export declare class _Shader_DiffuseWrapMethod extends _Shader_DiffuseBasicMethod {
    private _wrapDataIndex;
    private _wrapDataRegister;
    /**
     * Creates a new _Shader_DiffuseWrapMethod object.
     */
    init(method: DiffuseWrapMethod, shader: LightingShader): void;
    /**
     * @inheritDoc
     */
    _cleanCompilationData(): void;
    /**
     * @inheritDoc
     */
    _getFragmentPreLightingCode(registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
    /**
     * @inheritDoc
     */
    _getFragmentCodePerLight(lightDirReg: ShaderRegisterElement, lightColReg: ShaderRegisterElement, registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
    /**
     * @inheritDoc
     */
    _activate(): void;
}
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