/**
 * Backend-neutral vertex attribute formats.
 *
 * A vertex format names a component type and a component count in one token:
 * `"float32x3"` is three 32-bit floats, `"unorm8x4"` is four unsigned bytes
 * normalized to `[0, 1]`. That is everything a backend needs to interpret a
 * slice of an interleaved vertex buffer, which is why it replaces the
 * `size` + `type` + `normalized` triple the WebGL API works in.
 *
 * Naming follows the GPU vocabulary rather than the GL one, because the
 * translation only runs one way: `"unorm8x4"` gives you `4` +
 * `UNSIGNED_BYTE` + `normalized`, whereas `UNSIGNED_BYTE` alone cannot tell
 * you the component count or whether it is normalized. Declaring the format
 * also means a layout no longer needs a live rendering context to be written
 * down — the GL enums are only resolved when a backend consumes it.
 *
 * This module holds no GL references at all, so a non-WebGL backend can
 * import it without pulling in the WebGL layer.
 * @see {@link Batcher#addAttribute}
 */
/**
 * A vertex attribute format: component type and count.
 *
 * The set is deliberately narrower than the full GPU vocabulary — see the
 * module notes for what is excluded and why. Layouts that cannot be spelled
 * here (three-component 8- and 16-bit types, for instance) remain expressible
 * with the {@link Batcher#addAttribute} GL-enum form, which is supported
 * indefinitely.
 */
export type VertexFormat = "float32" | "float32x2" | "float32x3" | "float32x4" | "uint8" | "uint8x2" | "uint8x4" | "sint8" | "sint8x2" | "sint8x4" | "unorm8" | "unorm8x2" | "unorm8x4" | "snorm8" | "snorm8x2" | "snorm8x4" | "uint16" | "uint16x2" | "uint16x4" | "sint16" | "sint16x2" | "sint16x4" | "unorm16" | "unorm16x2" | "unorm16x4" | "snorm16" | "snorm16x2" | "snorm16x4" | "uint32" | "uint32x2" | "uint32x3" | "uint32x4" | "sint32" | "sint32x2" | "sint32x3" | "sint32x4";
/**
 * Whether a value is a supported vertex format name.
 * @param value - the value to test
 * @returns `true` when `value` names a format in {@link VERTEX_FORMATS}
 */
export declare function isVertexFormat(value: unknown): value is VertexFormat;
/**
 * Resolve a vertex format to its component count, size and normalization.
 * @param format - the format to resolve
 * @returns the resolved description
 * @throws {Error} when `format` is not a supported format name
 */
export declare function resolveVertexFormat(format: VertexFormat): VertexFormatInfo;
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