/**
 * Provides the input as-is.
 *
 * This method exists only to make use of the template string tag in code,
 * which allows us to use in-IDE support for GLSL, even if there is no build
 * process to interpret the tag.
 * @param input - Should only be the source of a fragment shader.
 * @returns The fragment shader as-is.
 */
export declare const frag: (input: TemplateStringsArray) => string;
/**
 * Provides the input as-is.
 *
 * This method exists only to make use of the template string tag in code,
 * which allows us to use in-IDE support for GLSL, even if there is no build
 * process to interpret the tag.
 * @param input - Should only be the source of a vertex shader.
 * @returns The vertex shader as-is.
 */
export declare const vert: (input: TemplateStringsArray) => string;
/**
 * Construction options for a {@linkcode !WebGLShader}.
 */
export interface ShaderOptions {
    /**
     * The GLSL source code of the shader.
     */
    source: string;
    /**
     * The type of the shader.
     */
    type: WebGL2RenderingContext["FRAGMENT_SHADER"] | WebGL2RenderingContext["VERTEX_SHADER"];
}
/**
 * Constructs a new shader.
 * @param gl - The rendering context in which to create the shader.
 * @param options - The construction options for the shader.
 * @returns The shader.
 */
export declare const createShader: (gl: WebGL2RenderingContext, options: ShaderOptions) => WebGLShader;
/**
 * Creates a new WebGL program.
 * @param gl - The rendering context in which to create the program.
 * @param shaders - The shaders we want to create.
 * @param transformFeedbackVaryings - Which values to record in transform
 * feedback buffer? See {@linkcode !WebGLTransformFeedback}.
 * @returns The program.
 */
export declare const createGLProgram: (gl: WebGL2RenderingContext, shaders: Array<ShaderOptions>, transformFeedbackVaryings: Array<string> | null) => WebGLProgram;
/**
 * Create a buffer with random data in 2 channels (red/green).
 * @param width - Width of the buffer.
 * @param height - Height of the buffer.
 * @returns The buffer.
 */
export declare const randomRGData: (width: number, height: number) => Uint8Array<ArrayBuffer>;