/**
 * @import { Shader } from '../../platform/graphics/shader.js'
 * @import { StencilParameters } from '../../platform/graphics/stencil-parameters.js'
 */
/**
 * A render pass that implements rendering a quad with a shader, and exposes controls over the
 * render state. This is typically used as a base class for render passes that render a quad with
 * a shader, but can be used directly as well by specifying a shader.
 *
 * @ignore
 */
export class RenderPassShaderQuad extends RenderPass {
    /**
     * A simple vertex shader used to render a quad, which requires 'vec2 aPosition' in the vertex
     * buffer, and generates uv coordinates uv0 for use in the fragment shader.
     *
     * @type {string}
     */
    static quadVertexShader: string;
    _shader: any;
    quadRender: any;
    /**
     * The cull mode to use when rendering the quad. Defaults to {@link CULLFACE_NONE}.
     */
    cullMode: number;
    /**
     * A blend state to use when rendering the quad. Defaults to {@link BlendState.NOBLEND}.
     *
     * @type {BlendState}
     */
    blendState: BlendState;
    /**
     * A depth state to use when rendering the quad. Defaults to {@link DepthState.NODEPTH}.
     *
     * @type {DepthState}
     */
    depthState: DepthState;
    /**
     * Stencil parameters for front faces to use when rendering the quad. Defaults to null.
     *
     * @type {StencilParameters|null}
     */
    stencilFront: StencilParameters | null;
    /**
     * Stencil parameters for back faces to use when rendering the quad. Defaults to null.
     *
     * @type {StencilParameters|null}
     */
    stencilBack: StencilParameters | null;
    /**
     * Sets the shader used to render the quad.
     *
     * @type {Shader}
     * @ignore
     */
    set shader(shader: any);
    get shader(): any;
    /**
     * Creates a quad shader from the supplied fragment shader code.
     *
     * @param {string} name - A name of the shader.
     * @param {string} fs - Fragment shader source code.
     * @param {object} [shaderDefinitionOptions] - Additional options that will be added to the
     * shader definition.
     * @param {boolean} [shaderDefinitionOptions.useTransformFeedback] - Whether to use transform
     * feedback. Defaults to false.
     * @param {string | string[]} [shaderDefinitionOptions.fragmentOutputTypes] - Fragment shader
     * output types, which default to vec4. Passing a string will set the output type for all color
     * attachments. Passing an array will set the output type for each color attachment.
     * @returns {object} Returns the created shader.
     */
    createQuadShader(name: string, fs: string, shaderDefinitionOptions?: {
        useTransformFeedback?: boolean;
        fragmentOutputTypes?: string | string[];
    }): object;
}
import { RenderPass } from '../../platform/graphics/render-pass.js';
import { BlendState } from '../../platform/graphics/blend-state.js';
import { DepthState } from '../../platform/graphics/depth-state.js';
import type { StencilParameters } from '../../platform/graphics/stencil-parameters.js';