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Dafeng Technology Experience Center

Dafeng Science and Technology Experience Center, located in Binjiang District, Hangzhou, China, is a 28,000 square meter large building designed to showcase the latest developments in multi-media technology.

Opened in May 2023, it brings together advanced stage technologies and invites the visitors to immerse themselves in 5 floors of sound & light show run on LightAct reActor servers.

"LightAct’s multi-user and load distribution features were incredibly useful in this project."

Liu Zengxin

LightAct Programmer

The project consists of a large atrium with several AV systems, a wall projection in the lobby, a time tunnel and an interactive space.
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All of these spaces create an immersive visual journey the visitors embark on.

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Rightway Audio Consultants who installed and programmed reActor servers chose 4 reActor v servers equipped with 2 main GPUs so that each of them can push out a massive 8 x 4K pixels. Altogether they are controlling more than 1000 square meters of LED screens totalling more than 31 billion pixels.

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On top of that, one reActor rt with 8 x 4K outputs is used for real-time graphics pushed out to 27 HD projectors. The content is streamed from 2 render nodes over the network with no noticeable latency.

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Liu Zengxin who was the main LightAct programmer on this project was particularly excited about LightAct’s load distribution features: “LightAct’s load distribution feature was incredibly useful, because with a large project like this with hundreds of gigabytes of assets, it is very important that the load is efficiently distributed within the cluster of servers”.

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The entire atrium is projection mapped and as a 3D model wasn’t available, the team decided to proceed with 2D projection mapping approach. They used LightAct’s video output window to its fullest extent – they created sub-areas on individual canvases and mapped them to the correct areas on the 4K physical outputs.

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"LightAct's Multi-User functionality is an amazing time-saver on larger projects like this one."

Liu Zengxin

LightAct Programmer

Here’s what Liu had to say about this feature: “I really liked LightAct’s video output window where I could do most of my projection mapping. Sub-areas are incredibly useful as they allow you to map content to outputs directly from LightAct canvases.

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Rightway’s team was also using LightAct’s multi-user functionality which allows many users to work on the project at the same time thus drastically reducing the setup time.

Credits