Can a Game Environment Be Reconstructed Using Photogrammetry?

Photogrammetry has become a powerful tool for reconstructing real-world environments, and its application in game environments has also gained significant attention. While taking screenshots in games and using them for photogrammetric reconstruction might seem like a viable approach, it is generally more effective to mine the data from game files. This article explores the feasibility and practicality of photogrammetrically reconstructing game environments and highlights notable instances where this technology has been successfully applied.

Why Not Use Game Screenshot Photogrammetry?

One common question is whether it is possible to take screenshots in a game and then use photogrammetry to recreate the game environment from those images. While this might look possible, it is inherently complex and not guaranteed to work effectively. Simply applying the_EXIF_data from game screenshots requires significant modifications and is not straightforward. The process involves doctoring the EXIF data to make it appear as though the images were taken with a real camera, determining the correct field of view (FOV) in millimeters, and accurately filling in the aperture size data. Even if such modifications are made, the result is often overly complicated and unreliable.

Real-World Examples of Photogrammetry in Game Environments

Despite the aforementioned challenges, there are instances where photogrammetry has been successfully used to reconstruct game environments. One notable example is the development of the critically acclaimed game Vanishing of Ethan Carter. The creators utilized photogrammetry to scan and recreate entire buildings and natural elements within the game, including the Wang Church located in Karpacz, Poland. This demonstrates the potential of photogrammetry in capturing photo-realistic game environments that mirror real-world locations.

Photogrammetry has also been employed in upcoming games to create detailed and photorealistic environments. One such game is Deep Stranding, which uses photogrammetry to generate all the scenery that players explore. Additionally, the renowned racing game Gran Turismo has utilized photogrammetry to obtain accurate details of the areas where vehicles drive. These examples highlight the growing trend of using photogrammetry to enhance the realism and authenticity of game environments.

Conclusion

While it is technically possible to use game screenshots for photogrammetry, the process is often too complex and unreliable. Instead, the best approach is to mine the data directly from game files, which can provide more accurate and efficient results. Notable examples like Vanishing of Ethan Carter, Deep Stranding, and Gran Turismo demonstrate the successful application of photogrammetry in recreating game environments. As technology continues to advance, we can expect to see even more sophisticated and realistic game environments being generated through photogrammetry.