Function unit3

Source/astcenc_vecmathlib.h:319–323

* @brief Factory that returns a unit length 3 component vfloat4. */

 * @brief Factory that returns a unit length 3 component vfloat4.
 */
static ASTCENC_SIMD_INLINE vfloat4 unit3()
{
	float val = 0.577350258827209473f;
	return vfloat4(val, val, val, 0.0f);
}

/**
 * @brief Factory that returns a unit length 2 component vfloat4.