Method makeRotationX

src/math/Matrix4.js:872–887

* Sets this matrix as a rotational transformation around the X axis by * the given angle. * * @param {number} theta - The rotation in radians. * @return {Matrix4} A reference to this matrix.

( theta )

	 * @return {Matrix4} A reference to this matrix.
	 */
	makeRotationX( theta ) {

		const c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			1, 0, 0, 0,
			0, c, - s, 0,
			0, s, c, 0,
			0, 0, 0, 1

		);

		return this;

	}

	/**
	 * Sets this matrix as a rotational transformation around the Y axis by