3D-scanning at a museum, Castle Läckö in Sweden

Kungssalen / The King’s Hall  Läckö Slott, 3d-skannad av Adam de Kaminski

Rotate view

Computer: Left Click + drag
Phone/pad: Swipe with your finger

Zoom / Walk

Computer: Double click or scroll wheel Phone/pad: Pinch or de-pinch

Movement sideways

Computer: Right click + drag
Phone/pad: Drag with two fingers

About the 3d-scanned King´s Room at Läckö Castle

The King´s Hall is the most decorated room of Läckö Castle. It made very good sence to 3d-scan this room! It is a celebration of the Swedish victory over the catholic German-Roman emperor during the 30 Year War. The king of the time is Gustav II Adolf, the Lion of the North. He is seen as the Swedish king enabled Sweden to become a super power of it´s time. There is a large painting of the king and you can also see the battle of Luetzen where he was fatally wounded in the year 1632.

The room was renovated by a count with taste for luxury and perfection 

Count Magnus Gabriel de la Gardie was one of the most rich and famous people in Sweden. He owned Läckö Castle, nine other castles and thousands of mansions. When he renovated Läckö Castle he only hired the most famous and skilled artisans from all over Europe! These craftsmen literally spent decades on perfecting this room with all its paintings. You can still admire this work of art since it has been so well preserved. And thanks to the 3d-scan of me you can enjoy it online as well!

Flying angles in the ceiling decides who sits where

The angles in the ceiling decides where the guests are sitting. The kings placement is marked with an angel holding the kings crown. The further away in the room you come, the lower social status the guest has. Furthest away from the king is the balconies, where the music system of the room sits; the live musicians. Unfortunately I could not 3d-scan them this time, even if there might be ghosts in this castle..

3D-scan data from this project

Client: Läckö Castle Museum Method of 3d-scanning: Photogrammetry with DSLR Equipment: DSLR Software: Agisoft Metashape, Adobe Lightroom Number of Images: 1750 RAW-format images Tie points: 1 million Polygons:62 million faces (later reduced and optimized for a smooth internet experience) Textures: 4x8192 pixels 24,1 megapixels Optimization of 3d-scan: From 62 million faces to 1 million and less than 100mb including textures. Time taken to complete the 3d-scan: Roughly 20 hours

3d-scanning the room - the process explained

Photogrammetry is an established way to 3d-scan rooms and objects. A high end DSLR is used in order to create as sharp and clear photos as possible. This allows the software in the computer to recognize common geometry between different pictures thus creating a 3D-model.

We use many images for a 3d-scan

Normally one do not use more than 500 images to scan an object, but this is a big room with lots of detail. I used 1750 photos that all are interconnected since I always use ca. 80% overlap between two different photos.

It took 8 hours to capture this room

It took 8 hours to scan the room with the DSLR and roughly 12 hours to process the data. I used a powerful remote computer cloud in order to easier process the images.

Post processing and retouch in 3d-softwares

Some of the areas in the room were not possible to capture with the camera. In these cases I had to work with the 3d-scan afterwards in Blender 3d and similar software. It is a process I enjoy, it is quite similar to working in Photoshop but in 3d.
 

You have to optimize a 3d-scan before publishing online

3D-scans are quite heavy when it comes to data. 62 million triangles take a lot of computational power from a graphic card and your internet connection. Not all people who visit your website will be able to take part of your creations. That is why you have to downsize the model in megabytes.  

Details images from the 3d-model

När det var fest satt det musiker bakom dessa vitmålade träpelare och spelade.
On the walls there are many detailed paintings of different battles in Germany. The written language in the paintings is also German.
This 3d-scanned fireplace is huge! The firewood is 3 times bigger than your average fire wood at home. You can also find golden text above the fireplace, it is written in latin.
Det vackra golvet är vanligtvis dold av mattor och möbler.
This is the point cloud showing the room. This is later used to create the mesh of the model.
The blue rectangles are representations of where I stood when I took the 1750 scan photos.

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A Google Map showing the location of the Castle