/**
 * Minimal 4x4 Matrix math for WebGL 3D rendering.
 * Column-major order (OpenGL/WebGL convention).
 * No external dependencies.
 */
export type Mat4 = Float32Array;
export type Vec3 = [number, number, number];
/** Create identity matrix */
export declare function create(): Mat4;
/** Set matrix to identity */
export declare function identity(out: Mat4): Mat4;
/** Copy matrix a to out */
export declare function copy(out: Mat4, a: Mat4): Mat4;
/** Multiply two matrices: out = a * b */
export declare function multiply(out: Mat4, a: Mat4, b: Mat4): Mat4;
/** Create perspective projection matrix */
export declare function perspective(out: Mat4, fovY: number, aspect: number, near: number, far: number): Mat4;
/** Create view matrix looking at target from eye position */
export declare function lookAt(out: Mat4, eye: Vec3, center: Vec3, up: Vec3): Mat4;
/** Translate matrix by vector v */
export declare function translate(out: Mat4, a: Mat4, v: Vec3): Mat4;
/** Scale matrix by vector v */
export declare function scale(out: Mat4, a: Mat4, v: Vec3): Mat4;
/** Rotate matrix around X axis */
export declare function rotateX(out: Mat4, a: Mat4, rad: number): Mat4;
/** Rotate matrix around Y axis */
export declare function rotateY(out: Mat4, a: Mat4, rad: number): Mat4;
/** Rotate matrix around Z axis */
export declare function rotateZ(out: Mat4, a: Mat4, rad: number): Mat4;
/** Invert matrix */
export declare function invert(out: Mat4, a: Mat4): Mat4 | null;
/** Create orthographic projection matrix */
export declare function ortho(out: Mat4, left: number, right: number, bottom: number, top: number, near: number, far: number): Mat4;