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Cutting-edge Media Facade Realized with Precise LiDAR Scan Data

'Seoul Light Gwanghwamun' showcased media art works created by artists from four countries—Korea, France, Italy, and Spain—under the theme 'LUMINOUS AXIS'. This project used cutting-edge new media technology and projection mapping to paint vivid images on Gwanghwamun.

75mm Studio's LiDAR scanning work provided a crucial foundation for this media facade implementation. The LiDAR scan data accurately reproduced the precise structure and details of Gwanghwamun in 3D, maximizing the perfection of projection mapping.

LiDAR Scanning: Established as Essential Technology for Media Facades

LiDAR scanning finely digitizes the exterior of buildings, providing accurate data essential for media facade production.

Gwanghwamun geometry created based on 75mm Studio LiDAR scan data

"75mm Studio has produced outstanding results through precise LiDAR scan technology in major projects such as Seoul Light DDP in 2022."

Dongdaemun DDP geometry created based on 75mm Studio LiDAR scan data

In this Gwanghwamun project as well, we were able to complete a touching presentation blending Korean tradition and modern technology on Gwanghwamun by utilizing LiDAR data. Scenes like a ballerina in Hanbok performing a fan dance, or symbolic scenes fusing Gwanghwamun and the Louvre Museum, as seen in the work of French artist David Hugonot, were results supported by 75mm Studio's data.

75mm Studio's Technology and Distinctiveness

75mm Studio significantly increases the efficiency of post-production based on LiDAR scan data with an error margin of less than 3~5mm and high-resolution texture data. We support artists to work creatively using data and save time and effort throughout the entire production process.

The applicability of LiDAR scanning technology is endless in various fields such as media facades, advertising, and architectural visualization. especially in projection mapping-based projects where accurate data is required, 75mm Studio's technology guarantees the successful completion of the project.

Technical Details & FAQ

What is LiDAR scanning and how is it used in VFX?

LiDAR (Light Detection and Ranging) is an ultra-precise 3D scanning technology that uses laser pulses to measure spatial distances. In modern VFX pipelines, precise geometry data acquired through LiDAR ensures that computer-generated CGI environments match physical movie sets with zero margin of error. This maximizes the accuracy of camera matchmoving and virtual set extensions, drastically reducing post-production turnaround times.

How does 75mm Studio process massive Point Cloud data?

Raw point cloud data acquired on-site consists of billions of points, making it too heavy for standard DCC software like Maya or Unreal Engine. We run the raw data through an advanced proprietary processing pipeline that involves point registration, aggressive noise reduction, and topological lightweighting. Ultimately, the dense point cloud is converted via meshing and retopology into an optimized, highly manageable polygonal asset.

What is the primary difference between Photogrammetry and LiDAR?

While LiDAR structural scanning focuses on calculating exact physical dimensions with millimeter accuracy (the 'skeleton'), Photogrammetry focuses strictly on generating photorealistic visual textures (the 'skin'). At 75mm Studio, we employ a hybrid workflow combining the undeniable millimeter-accuracy of laser scanning with the hyper-realistic optical fidelity of photogrammetry.

Why is 3D Gaussian Splatting revolutionary for spatial archiving?

3D Gaussian Splatting is a breakthrough AI-based neural rendering technique that bypasses the limitations of traditional polygonal rendering. It easily captures incredibly complex micro-details such as translucent objects, fine foliage, and specularity. Moreover, it achieves this extreme photorealism while maintaining real-time 60fps render performance, even directly within a web browser, making it the ultimate game-changer for digital twin distribution.