Description: Z-axis alignment is a fundamental process in the field of augmented reality (AR) that refers to the precise placement of virtual objects in a three-dimensional space, specifically along the Z-axis, which represents depth. This axis is crucial for creating an immersive and realistic experience, as it allows virtual objects to be coherently integrated with the user’s physical environment. Proper Z-axis alignment ensures that virtual elements not only appear in the correct position on the XY plane but also are located at the appropriate distance from the observer, affecting the perception of size, scale, and perspective. In AR, where the interaction between the real and digital worlds is essential, Z-axis alignment contributes to the illusion that virtual objects are part of the physical environment, enhancing the user experience. This process involves the use of tracking and mapping technologies that enable AR devices to calculate the position and orientation of objects in real-time, adapting to user movements and variations in the environment. Therefore, precision in Z-axis alignment is a critical aspect for the success of AR applications, ranging from games to design tools and architectural visualization.