What should the camera's Clear Flags be set to when rendering only the FPS layer?

When rendering only the FPS layer, the camera's Clear Flags should be set to Depth Only. This configuration tells the camera to clear only the depth buffer, meaning that it will maintain the information from previously rendered frames on the object's depth. This can be particularly useful in first-person shooter (FPS) games where you want to ensure that certain elements, like the player's view, do not interfere with the overall depth calculations of the scene while maintaining the correct layering of objects in 3D space.

The choice of Depth Only prevents the camera from clearing the color buffer, allowing for background elements or other layers to remain visible while rendering the FPS layer. This is beneficial for specific gameplay mechanics, such as rendering overlays, HUDs, or special effects that should not be affected by the rest of the scene.

Other options may not serve the intended purpose as effectively. For instance, setting the Clear Flags to Color would clear the color buffer, leading to a complete reset of what is visible in the scene, which may not be desired in contexts where continuity is critical. Choosing Skybox would also not be appropriate, as it would replace the existing visuals with a skybox rendering, overshadowing the FPS layer you intend to highlight. Setting it to nothing might lead to unpredictable