3D projection

3D projection is a method to display three-dimensional objects on a flat 2D surface, like a screen or paper. It involves converting the 3D coordinates of an object into 2D coordinates while preserving its depth and perspective. This process simulates how our eyes perceive objects in space—things farther away appear smaller, and angles adjust to mimic real-world vision. Different projection techniques, like perspective and orthographic, determine how realistic or technical the image looks. Ultimately, 3D projection helps create images that give a sense of depth and spatial relationship, making virtual scenes appear more realistic.