Can you explan me briefly unity renderring pipeline by its update level? like 'update', 'finalupdate', 'fixedupdate' ?

Sure, I can explain the Unity rendering pipeline and the different update levels that are used in Unity.

The Unity rendering pipeline refers to the series of steps that Unity follows to render graphics on screen. These steps include rendering geometry, applying textures and materials, and lighting the scene. The pipeline is divided into different update levels that allow developers to control when certain calculations are performed during the rendering process.

The different update levels in Unity are:

Update: This is the most frequently called function in Unity. It is called once per frame and is used to update the state of objects in the scene, such as their position, rotation, and scale.

FixedUpdate: This function is called at fixed time intervals and is used for physics calculations, such as calculating collisions between objects.

LateUpdate: This function is called after all Update functions have been called. It is useful for performing actions that depend on the updated state of objects in the scene, such as camera movement.

EndOfFrame: This function is called after the final frame has been rendered. It is useful for performing actions that depend on the final state of the scene, such as capturing a screenshot.

OnRenderImage: This function is called after the scene has been rendered and is useful for applying post-processing effects, such as adding a blur or color correction to the final image.

These different update levels allow developers to control the order in which calculations are performed during the rendering process and optimize the performance of their game or application.

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