Description: The term ‘overdraw’ refers to the practice of drawing pixels multiple times in a graphical scene, which can significantly impact the performance of applications using graphics APIs in general. This phenomenon occurs when an object or part of the scene is rendered more than once, either intentionally or due to errors in scene management. The overhead of repeatedly drawing the same pixels can lead to inefficient use of GPU resources, resulting in performance drops and increased processing time. In the context of computer graphics, overdraw can be a critical issue, especially in applications requiring high performance, such as video games and simulations. To mitigate overdraw, developers must optimize their rendering techniques, ensuring that objects are drawn only when necessary and using techniques like culling (removing non-visible objects) and proper depth buffer management. In summary, overdraw is a key concept in computer graphics optimization, aiming to maximize rendering efficiency and enhance user experience.
