varjupaigamenetlused

Varjupaigamenetlused, also known as shadow mapping, is a computer graphics technique used to render realistic shadows in three-dimensional scenes. The method involves projecting the scene from the perspective of a light source, creating a depth map or shadow map. This map records the distance from the light source to the nearest surface along each ray. During the rendering phase, the scene is rendered from the camera's perspective, and the shadow map is used to determine which parts of the scene are in shadow. By comparing the depth of each pixel in the scene to the corresponding depth in the shadow map, the algorithm can accurately determine whether a point is in shadow or not. This technique is widely used in real-time rendering applications due to its efficiency and effectiveness in producing high-quality shadows. However, it can suffer from artifacts such as shadow acne and Peter panning, which can be mitigated through various optimization and filtering techniques.