import { TextureBase } from '@awayjs/renderer';
import { MethodBase, _Shader_MethodBase } from './MethodBase';
/**
 * NormalBasicMethod is the default method for standard tangent-space normal mapping.
 */
export declare class NormalBasicMethod extends MethodBase {
    private _texture;
    static assetType: string;
    /**
     * @inheritDoc
     */
    get assetType(): string;
    /**
     * A texture to modulate the direction of the surface for each texel (normal map). The default normal method expects
     * tangent-space normal maps, but others could expect object-space maps.
     */
    get texture(): TextureBase;
    set texture(value: TextureBase);
    /**
     * Creates a new NormalBasicMethod object.
     */
    constructor(texture?: TextureBase);
    /**
     * @inheritDoc
     */
    copyFrom(method: MethodBase): void;
    /**
     * @inheritDoc
     */
    dispose(): void;
}
import { ShaderRegisterCache, ShaderRegisterData, ShaderRegisterElement } from '@awayjs/stage';
import { ShaderBase, _Render_RenderableBase, _Shader_TextureBase, ChunkVO } from '@awayjs/renderer';
/**
 * _Shader_NormalBasicMethod is the default method for standard tangent-space normal mapping.
 */
export declare class _Shader_NormalBasicMethod extends _Shader_MethodBase {
    protected _method: NormalBasicMethod;
    protected _shader: ShaderBase;
    protected _texture: _Shader_TextureBase;
    /**
     * Creates a new EffectEnvMapChunk.
     */
    init(method: NormalBasicMethod, shader: ShaderBase): void;
    _isUsed(): boolean;
    /**
     * @inheritDoc
     */
    _initVO(chunkVO: ChunkVO): void;
    /**
     * @inheritDoc
     */
    _initConstants(): void;
    /**
     * Indicates whether or not this method outputs normals in tangent space. Override for object-space normals.
     */
    _outputsTangentNormals(): boolean;
    /**
     * @inheritDoc
     */
    _activate(): void;
    _setRenderState(renderState: _Render_RenderableBase): void;
    /**
     * @inheritDoc
     */
    _getFragmentCode(targetReg: ShaderRegisterElement, registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
}
//# sourceMappingURL=NormalBasicMethod.d.ts.map