import { IAbstraction } from '@awayjs/core';
import { ShaderRegisterCache, ShaderRegisterData, ShaderRegisterElement } from '@awayjs/stage';
import { _Render_RenderableBase, ChunkVO } from '@awayjs/renderer';
/**
 *
 */
export interface _IShader_Method extends IAbstraction {
    chunkVO: ChunkVO;
    _isUsed(): boolean;
    _usesTangentSpace(): boolean;
    /**
     * Initializes the properties for a MethodVO, including register and texture indices.
     *
     * @param methodVO The MethodVO object linking this method with the pass currently being compiled.
     *
     * @internal
     */
    _initVO(chunkVO: ChunkVO): void;
    /**
     * Initializes unchanging shader constants using the data from a MethodVO.
     *
     * @param methodVO The MethodVO object linking this method with the pass currently being compiled.
     *
     * @internal
     */
    _initConstants(): void;
    /**
     * Resets the compilation state of the method.
     *
     * @internal
     */
    _reset(chunkVO: ChunkVO): void;
    /**
     * Resets the method's state for compilation.
     *
     * @internal
     */
    _cleanCompilationData(): void;
    /**
     * Get the vertex shader code for this method.
     * @param vo The MethodVO object linking this method with the pass currently being compiled.
     * @param regCache The register cache used during the compilation.
     *
     * @internal
     */
    _getVertexCode(registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
    /**
     * @inheritDoc
     */
    _getFragmentCode(targetReg: ShaderRegisterElement, registerCache: ShaderRegisterCache, sharedRegisters: ShaderRegisterData): string;
    /**
     * Sets the render state for this method.
     *
     * @param methodVO The MethodVO object linking this method with the pass currently being compiled.
     * @param stage The Stage object currently used for rendering.
     *
     * @internal
     */
    _activate(): void;
    /**
     * Sets the render state for a single renderable.
     *
     * @param vo The MethodVO object linking this method with the pass currently being compiled.
     * @param renderable The renderable currently being rendered.
     * @param stage The Stage object currently used for rendering.
     * @param camera The camera from which the scene is currently rendered.
     *
     * @internal
     */
    _setRenderState(renderRenderable: _Render_RenderableBase): void;
    /**
     * Clears the render state for this method.
     * @param vo The MethodVO object linking this method with the pass currently being compiled.
     * @param stage The Stage object currently used for rendering.
     *
     * @internal
     */
    _deactivate(): void;
}
//# sourceMappingURL=_IShader_Method.d.ts.map