3D Cave

We have created several 3D projections. Several 3D cinemas from the size of 3m for classrooms, through 3D projection for a lecture hall to a large panoramic 3D cinema with a rounded projection surface and a width of 12m.

A separate important chapter is the creation of 3D caves. Creating a cave is much more complicated because multiple walls need to be synchronized with each other. These caves were delivered on a turnkey basis, so we solved the mechanical structure, hardware and projection as well as we created the software.

3D Cave for TUZVO

We designed and delivered a 3D cave for the Technical University of Zvolen.
The cave displays the surrounding space on 5 walls of specialized glass screens measuring 3 x 3 x 2.3 m. We programmed specialized software that uses 14 projectors and runs on a cluster of 8 computers with powerful graphics cards. The system is equipped with a control console with a space mouse, remote control, optical head tracking and powerful 3D sound. Due to space reasons, some projectors project the image onto walls through special mirrors.

Key Project
Statistics

2012

In use from

2

Technical upgrades

1000+

Students

Components of 3D-cave

Mechanical construction

The proposed mechanical structure of the 3D cave respects the spatial possibilities of the room as well as the geometry of the projectors’ projection. To achieve the desired dimensions of the 3D cave, 4 special large-area mirrors were used for projection onto the upper and lower surfaces of the cave.

Specialized safety screen glass for 3D projection

This safety glass screen was custom-made by the glassworks for this project. It was necessary to obtain a screen that had a high viewing angle and uniform gain over the entire surface, even at a short viewing distance. We almost completely suppressed the hotspot.

Projectors

A separate projector is designed for each eye projection, so there is a pair of projectors at each projection point. The projection on the front and both side walls each uses its own pair of projectors. The projection on the upper wall is divided into two parts and two pairs of projectors project onto the screen via two mirrors. The same goes for the lower part, so a total of 14 NEC short throw projectors are used.

3D filters & glasses

In order to achieve high-quality stereoscopic projection in the cave, it was necessary to choose a type of projection that does not depend on the rotation of the head relative to the projection surface. Active systems have their disadvantages, which is why Infitec was chosen. The advantage of the Infitec system is that the filters are made of glass and therefore could be installed directly into the projector optics.

3D sound system

A powerful 5+1 sound system was selected for the sound. The software used is able to adjust the position of the sound source along with the position of the projected object in space.

3D tracking & movement controlling

We have proposed the use of the HTC Vive tracking system (TOF 3D) in a configuration suitable for Cave. The user has two controllers in each hand. The head position is tracked by a separate sensor, so the software can calculate the image display based on the head movement. This allows you to look around corners. An additional sensor is also available for tracking the position of another object. In addition to this solution, a space pilot is also available.

Control Console

A control console with a touch screen is used to control the entire cave. Special control software allows you to turn projectors and servers on and off, launch 3D visualizations, as well as interactively enter the 3D cave during visualization. For the simplest possible control, there is a one-push button at the entrance to easily turn the entire cave on/off.

Preview monitor

For viewers outside the cave, there is an overview monitor located outside the cave, on which the central wall is rendered.

Computer system

To ensure computational performance, a computer cluster consisting of seven computers with powerful NVIDA graphics cards is used. Each computer renders an image for a pair of projectors (left and right eye). To ensure image synchronization, all computers are connected by a local computer network, which is connected to the school network via a firewall.

VRPIS easily connects to external
systems and hardware, such as:

Manufacturing control systems
Accounting platforms
Weighing systems
Identification label printing for logistics
Energy consumption monitors
Logistics planning and monitoring

50+ customers worldwide trust us

Integration with other systems

HMD & desktop co-development

You can run your application created with the 3D Cave library as a 3D Cave application, an HMD application, or a standard desktop application. You do not need to create it as a separate application for each display type.

HMD & desktop cooperation

You can create an application and configure it so that after running it simultaneously in the 3D Cave and the HMD, or desktop, users can interact with each other in one and the same virtual space.

Sibyla

3D forest visualization application of 3d Cave is integrated together with Sibyla. Sibyla is a “Simulator of forest biodynamics”, which belongs to the category of tree growth simulators. You can learn more about the simulator here.

Open integrations

Since it is possible to run your own Unity application in the 3D Cave, it is up to you what other connections you create with other systems.

Software

Last version of basic visualization software is created in Unity. A library supporting 3D stereoscopic display in the cave was created, which ensures synchronization of image display on individual projection surfaces. The library structure was chosen so that it was possible to very easily modify the original desktop application written in Unity to a version suitable for 3D Cave. A well-known Unity demo game could be modified in this way in less than an hour. After this modification, the application can be used either as a desktop version, a version for HMD display or as an application for 3D cave, depending on the configuration file used.

We have created specialized software for educational purposes. The software displays a forest with the option of marking or felling trees. The student can then use a growth simulator Sibyla to calculate the new state of the forest in a few next years and evaluate whether the forest is growing as he wanted. If not, he can go back, make corrections and repeat the whole cycle. This way he can learn to care for the forest in a short time without having to wait for the trees to grow.

Efficient internal communication and
smooth circulation of documents in one place

Document Flow & Registry

Manage invoices, delivery notes, and purchase orders through a centralized registry.

Digitalization of Paper Documents

Scan and store incoming paper documents in electronic form for easy access and tracking.

User Notifications

Stay informed with automated alerts and updates between users.

Dashboard

The main dashboard highlights key alerts and tasks relevant to each user. It visually prioritizes pending actions by severity, helping teams stay on top of their responsibilities.

From basic overviews to
fully customized insights

Standard & Custom Reports
  • Access basic predefined reports
  • Generate tailored reports based on specific customer needs
Interactive Data Views
  • Visualize data using selected filters
  • Easily sort and explore key metrics
Flexible Output Options
  • Export reports to PDF or XLS
  • Print reports directly with one click

Real feedback from a partner with
whom we developed a project VRPIS

Back to top