Description: Depth pipeline refers to the depth buffer used in graphic rendering, especially in the context of graphics APIs. This buffer is essential for determining which fragments of a scene are visible and which are hidden behind other objects. In simple terms, depth pipeline allows the graphics system to evaluate the distance of each pixel from the camera, ensuring that only those that are closer to the observer are rendered. This is crucial for creating realistic three-dimensional images, as it allows for the correct overlay of objects in three-dimensional space. The depth pipeline is managed through z-buffering techniques, where each pixel on the screen has an associated depth value that is updated during the rendering process. If a new fragment has a lower depth value (i.e., is closer to the camera), the buffer is updated and the new fragment is rendered; otherwise, it is discarded. This technique not only optimizes performance by avoiding unnecessary fragment processing but also enhances the visual quality of rendered scenes, allowing for effects like occlusion and more accurate lighting.
