Description: Occlusion query is a fundamental method in computer graphics used to determine whether an object is visible or occluded in a three-dimensional scene. This process is crucial for optimizing rendering performance, as it allows graphics engines to decide which objects should be processed and drawn on the screen. Occlusion refers to the situation where one object is blocked by another, meaning it is not visible from the camera’s perspective. By implementing occlusion query techniques, developers can reduce the system’s workload by avoiding the rendering of objects that do not contribute to the final image. There are various techniques to perform occlusion queries, including the use of occlusion maps, depth tests, and culling algorithms. These techniques are especially relevant in complex and detailed environments, where the number of polygons and objects can be very high. In graphics engines and APIs, occlusion queries are efficiently integrated to enhance visual quality and overall performance of graphical applications.
