Which option is a suitable purpose for using post-processing in game design?

Using post-processing in game design primarily serves to enhance the visual quality of a game by simulating physical camera and film properties. This can include effects such as depth of field, motion blur, color grading, bloom, and lens flares, among others. These effects contribute to a more cinematic and immersive experience, making scenes appear more realistic or stylistically aligned with the intended art direction.

Incorporating these effects allows developers to create a specific mood or feel for the game, enhancing storytelling and player engagement. By mimicking real-world camera behaviors, developers can elevate the graphical fidelity and overall aesthetic appeal, giving players a more captivating visual experience.

In contrast to the other options, which involve drawbacks or limitations to visual output, leveraging post-processing to simulate camera effects is a powerful tool for enhancing the game's visual storytelling and artistic expression.