import { DirectionalLight } from '../lights/DirectionalLight';
import { ShadowMethodBase, _Shader_ShadowMethodBase } from './ShadowMethodBase';
/**
 * ShadowSoftMethod provides a soft shadowing technique by randomly distributing
 * sample points.
 */
export declare class ShadowSoftMethod extends ShadowMethodBase {
    private _range;
    private _numSamples;
    private _offsets;
    static assetType: string;
    /**
     * @inheritDoc
     */
    get assetType(): string;
    get offsets(): Array<number>;
    /**
     * The amount of samples to take for dithering. Minimum 1, maximum 32. The
     * actual maximum may depend on the complexity of the shader.
     */
    get numSamples(): number;
    set numSamples(value: number);
    /**
     * The range in the shadow map in which to distribute the samples.
     */
    get range(): number;
    set range(value: number);
    /**
     * Creates a new DiffuseBasicMethod object.
     *
     * @param castingLight The light casting the shadows
     * @param numSamples The amount of samples to take for dithering. Minimum 1,
     * maximum 32.
     */
    constructor(castingLight: DirectionalLight, numSamples?: number, range?: number);
}
import { ShaderRegisterCache, ShaderRegisterData, ShaderRegisterElement } from '@awayjs/stage';
import { LightingShader } from '../shaders/LightingShader';
/**
 * _Shader_ShadowSoftMethod provides a soft shadowing technique by randomly
 * distributing sample points.
 */
export declare class _Shader_ShadowSoftMethod extends _Shader_ShadowMethodBase {
    private _fragmentConstantsIndex;
    /**
     * Creates a new ShadowHardChunk.
     */
    init(method: ShadowSoftMethod, shader: LightingShader): void;
    /**
     * @inheritDoc
     */
    _initConstants(): void;
    /**
     * @inheritDoc
     */
    _activate(): void;
    /**
     * @inheritDoc
     */
    _getFragmentCode(targetReg: ShaderRegisterElement, registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
}
//# sourceMappingURL=ShadowSoftMethod.d.ts.map