We find that there is no much information online to guide how to build a projection dome. Therefore, we decide to share this kind of information for engineers, dome builders, and other stakeholders in the projection dome.
In this post, you will get a deep insight into the basic knowledge of the projection dome and how it is assembled.
- Pick reliable suppliers
- Preparation for building a projection dome
- Building the frame structure from the top outward
- Covering the frame with membrane
- Installing the projection system
Projection dome is geodesic domes equipped with a projection mapping system. Most of us are familiar with Planetarium and Fulldome, and these are two specific types of projection domes. A planetarium is more for educational and entertaining shows about astronomy, while a fulldome is more for theater immersive environments.
Recently, projection domes become increasingly popular. You can find projection domes are used for various commercial and governmental events around the world. Here are some of them:
In the daytime, this 30-meter-diameter Projection Dome is used to hold investing and business development workshops. At night, with the multiple-projector system, it is used to showcase official videos to attract audiences.
This 360-degree immersive projection dome was used for the film PADDINGTON 2 in Hong Kong. The 10-meter (32 feet) geodesic dome featured a custom printed dome cover and 360-degree projection system, seating for 60 people or stand for 115 people.
Before building a projection dome, one should purchase the geodesic dome tent and projection dome system. For geodesic dome, we strongly recommend Shelter Dome due to their high quality, affordable price and custom services. As for the dome projection system, we suggest you purchase locally. A local shop can provide immediate maintenance once you face a technical problem.
It is suggested to build the projection dome which diameter within 12 meters from the bottom upward. For a large projection dome, it can only build from the top outward, with a crane. Here is a time-lapse video of building large 30-meter-diameter projection dome:
There are at least two different types of projection dome, one you can see the video mapping from the outside, and another one from inside. Let’s see the examples:
Projection mapping on the outside surface of dome
In this case, the audience can enjoy the video mapping out of the projection dome. To make the dome look “illuminate” on the outside surface, the dome builder should cover the PVC fabric.
We built one 30-meter-diameter projection dome in India. As you can see, they did the video mapping outside. Even you are 50 meters far away from the illumination dome, you can notice what is playing on it. This type of illumination dome is good for promotion.
As the whole projection dome is done, the dome owner can set the dome projection to do dome mapping.
For those who build a semi-permanent projection dome to run a business, it is a wise choice to purchase a projection mapping system and ask the local supplier to install. However, for those clients who used it for special events or festivals, it is better to rent one locally. All in all, it is dependent on the dome owner whether to purchase a projection mapping system or to rent it.