3D Virtual Environments – How to maximise the value of BIM data

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At Agility3, the development of high quality, virtual 3D environments is one of our core capabilities. Typical examples of our work include:

  • driving simulator environments to enable complex road layouts to be trialled during the design phase,
  • interactive 3D Visualisations to enable stakeholders to experience the design of a new building and compare options, or
  • interactive visualisations to show how safe access will be maintained during construction.

Figure 1 shows an example environment produced for a driving simulator trial. Further examples of our work can be seen on our portfolio page.

Figure 1 – Agility3 Driving Simulator Urban Virtual Environment Example

One of the crucial, early conversations we have with clients, when discussing a project, is around the data they have. The availability of good quality data describing the subject matter has a huge impact on the effort required to produce a 3D virtual environment as well as the quality and accuracy that can be achieved. With the emergence of BIM as a methodology of choice, over the last few years, we are often asked, “How can BIM data be used to create virtual environments?”.

BIM, or Building Information Modelling, is more an approach to collaborative working than a set of defined data standards or formats, but a BIM dataset will typically include 2D and 3D CAD models describing all aspects of the planned construction project that can be accessed by all stakeholders on a project.

The benefits of BIM Data reuse will vary enormously from project to project, depending on the data that is available, the quality of the data and the detail contained within it.

At a basic level, 2D CAD drawings (see Figure 2) can provide an excellent basis from which to develop a 3D virtual environment. Data provided must be to scale (ideally 1:1) and have good resolution so that curves are as smooth as possible. It must also contain all elements that should be represented in the 3D virtual environment, ideally on separate, appropriately named layers and must reflect the state of the real environment that is to be represented. It is possible to make changes to bring supplied CAD data up to date but this adds to the overall effort required.

We can work with a range of data formats, however we have found that DWG, DXF and SKP formats of CAD data are some of the easiest to reuse.

Figure 2 – 2D line CAD elevation drawing example (source: www,autodesk.co.uk)

From the example data shown in Figure 2 we would be able to efficiently create a 3D virtual environment that accurately depicts the planned new road layout. This could be used in a driving simulator or 3D visualisation application to trial the new layout, to improve communication, engage stakeholders and obtain more valuable feedback earlier in the project. Generally, as a project progresses, rectification of issues becomes more and more complex and expensive, so being able to recognise these issues early, using an accurate 3D model, makes modifications easier and more cost effective.

As already described, the type of 2D CAD data depicted in Figure 2 would serve as a good basis for the development of a 3D virtual environment. However, if 3D CAD data is available, then this provides a far superior foundation from which a 3D virtual environment can be developed. With 2D CAD data we often have to make a ‘best guess’ with the third dimension which can result in inaccuracies in the developed 3D model. For many applications, these inaccuracies don’t pose a significant problem and the usability of the 3D virtual environment is not affected. However, where accuracy and detail is of primary importance, 3D CAD data is invaluable. In addition, the availability of 3D CAD data allows us to more rapidly understand the requirements of a project and ultimately save time and effort in the design and development of a virtual environment.

The provided 3D CAD models can be imported into 3D modelling tools, such as 3D Studio Max, used by Agility3 and can form the basis of the virtual environment. This helps to ensure the virtual environment accurately reflects the real environment and CAD data is far easier to work with than a purely textual description of the environment or line drawings. Starting from the CAD, we would then optimise the data, adding visual details as required and applying high quality textures and materials to the environment. Finally, the environment is configured specifically for the end use requirements, whether that is for a driving simulator or interactive fly-through. Our in-house software development team are often required to create interactive applications using the virtual environments, for example, to switch between different design options, times of day or phases through construction. Figure 3 shows a virtual environment developed for the rail domain being used within an interactive application developed by our software team.

Figure 3 – Agility3 Rail Infrastructure Virtual Environment Example

In the absence of CAD data, a LIDAR scan of the area (see Figure 4) is a good substitute when you need to represent an existing environment. LIDAR is particularly effective for capturing fine detail and the precise positions of objects. Potentially, the 3D models that we would create for the virtual environment could be incorporated back into the BIM dataset and made available for all project stakeholders, thus contributing towards BIM compliance. The use of LIDAR is already widespread and continuing to grow. Currently, LIDAR point cloud data is traced within the 3D modelling tools to create an accurate 3D virtual environment. This process can be very time consuming and often requires more effort than working from CAD data, however, new commercially available tools are being developed which can automate some of the conversion from LIDAR point cloud to polygonal geometry. As these tools mature, modelling virtual environments from LIDAR will become quicker and easier, reducing the difference in effort required compared to working from CAD data.

Figure 4 – LIDAR point cloud example (source: http://www.mto.gov.on.ca/english/publications/road-talk/road-talk-19-spring.shtml)

The ideal form of BIM data that can be supplied to generate a virtual environment as accurately and efficiently as possible, is a pre-existing, low-polygon, accurate 3D model of the environment. This can be further optimised, representative textures applied and then configured to operate smoothly within the required 3D visualisation.

Ultimately, there are many forms of BIM data that can be used to help develop virtual environments and the available data can vary considerably in terms of quality, content and accuracy. This will impact the accuracy of the delivered virtual environment as well as the time and cost to develop it. Therefore, we would recommend that developers of BIM data:

  • Consider all the potential stakeholders that may wish to reuse the data,
  • Produce accurate CAD data in standard formats,
  • Configure data to be easily understood with objects intuitively named and separated into different layers or groups and keep data up-to-date.

Good quality data can be reused multiple times, increasing the value of the data and the return on the data investment. High quality virtual environments can provide huge value to infrastructure and construction projects and the availability and reuse of good quality data can result in substantial savings. Therefore, when considering requirements for a simulator environment or interactive 3D visualisation, first consider the data that can be provided.

This article was written by Louis Drakes, Business Coordinator at Agility3. If you have any questions or would like any further information, please do not hesitate to get in touch at louis.drakes@agility3.co.uk or call on (+44) 01438 488066.

©2018 Agility3

Agility3 is looking for a talented and enthusiastic software engineer

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We’ve got some very exciting opportunities coming up so we’re on the lookout for great software engineers with Unity development experience. Follow the link to find out more…
A3.JDN.004 – Software Developer – 3D Visualisation

Agility3 will be at Rail Infrastructure Networking in London this Thursday

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The next Rail Infrastructure Networking event is only 3 days away. The event takes place on 22nd February at the Business Design Centre, 52 Upper Street, Islington, London N1 0QH, 9:30am to 12:30pm and is free to attend.

Whether you are interested in highly realistic 3D visualisations to engage stakeholders, interactive equipment emulation to help train maintainers or are looking to understand how Virtual Reality could improve training outcomes and help teams make better decisions, drop in and learn how Agility3 can help you.

To find out more about the event visit the event website at http://www.rinevents.co.uk/. For more information about Agility3 and what we offer, please contact us via info@agility3.co.uk or call us on 01438 488066.

We look forward to seeing you on Thursday!

©2018 Agility3 Limited

Agility3 develop another high quality virtual environment for next generation driving simulator

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One of the highlights of 2017 for Agility3 was the delivery of another stunning 3D environment for use in driving simulators.

Norwegian driving simulator provider, AutoSim, selected Agility3 to produce a 3D virtual environment for use by their Thailand customer for the safety training of professional truck and bus drivers. The environment comprised a range of very different and challenging driving areas.

To work with AutoSim’s next generation truck driving simulator, the virtual environment was developed using the Unity development platform and made use of the latest lighting features. The overall finished product is something we’re really proud of and feedback from the customer was very positive.

For more information please feel free to contact us via info@agility3.co.uk or call us on 01438 488066.

©2018 Agility3 Limited

Exciting New VR Projects from Agility3

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As the New Year approaches we at Agility3 are looking forward to some very exciting projects for next year, particularly around Virtual Reality (VR), having completed several demos and projects over the last six months. These include…

Tube Train Passenger/Driver VR Experience

An immersive train station experience where users can navigate station platforms, on to and off trains, move within and between carriages and even experience driving a train. This type of experience would be extremely beneficial for enhancing passenger experience, driver training or even train station redevelopment. Take a look at some footage here.

Hazard Perception VR Driving Simulation

A driver training aid that requires users to react to various hazards presented to them as they drive around a residential environment. Statistics are captured and provided on their performance. Take a look at some footage here.

Interactive Building VR Walkthrough

VR experiences to help stakeholders understand how a new building or space may look and function once constructed. This can reduce project risk, increase stakeholder engagement and result in better overall design. Interactive features within the experience can enable users to customise the environment and compare or contrast different options.

If you would like to find out more about our VR capabilities, try any of the experiences mentioned or discuss a potential project please do get in touch on 01438 488066 or info@agility3.co.uk

We look forward to hearing from you in 2018.

Less than 1 week until RailSIMtech – See our Rail VR and Maintenance Training demos!

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Hi!

The excitement is building and we’re looking forward to showing our Virtual Reality Tube Train and Interactive Maintenance trainer demonstrations at RailSIMtech next week.

If you are involved in maintenance or operator training, or if you would like to try our Tube Train VR experience and learn what we can do for you, we would be delighted to offer you a demonstration at the event.

To learn more or to reserve a demo slot at the event please get in touch. If you’re not yet registered for RailSIMtech you can click here to register. Save 50% on the standard event price using our discount code AGIL3VIP. We look forward to seeing you there!

For more information, please contact us via info@agility3.co.uk or call us on 01438 488066.

©2017 Agility3 Limited

RailSIMtech – Save 50% with our exclusive VIP discount code

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RailSIMtech is the only business event in the world dedicated to the use of simulation and visualisation within the rail industry and we’re delighted to be exhibiting throughout the event. During the event we will be demonstrating a selection of our interactive 3D software and content including the “VirtuRail” 3D Visualisation application developed by Agility3 for Transport for London.

 

“VirtuRail” automatically generates immersive real-time 3D representations of railway networks using input and output data from TfL’s Railway Engineering Simulator. We are delighted to invite you for a demonstration at the event. If you’re not registered already you can click here to register for the event and save 50% on the standard price with our exclusive discount code AGIL3VIP.

We look forward to seeing you there!

For more information, please contact us via info@agility3.co.uk or call us on 01438 488066.

 

©2017 Agility3 Limited

Agility3 are exhibiting at RailSIMtech – come and see us!

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RailSIMtech is the only business event in the world dedicated to the use of simulation and visualisation within the rail industry and we’re delighted to be exhibiting throughout the event. During the event we will be demonstrating a selection of our interactive 3D software and content including the Agility3 Virtual Route Viewer (VRV).

Agility3 visualisation solutions to support Infrastructure Development

 

 The VRV:

  • Allows stakeholders to visualise and compare alternative development schemes
  • Improves stakeholder engagement and confidence
  • Leads to better communication
  • Improves safety and reduces time and cost by reducing the need for site visits
  • Supports driver route learning
  • Results in better, quicker and cheaper decision making

If this is of interest to you we would be delighted to offer you a demonstration at the event. Please get in touch if you would like to arrange a time to meet and if you’re not registered already you can click here to register for the event.

We look forward to seeing you there!

For more information, please contact us via info@agility3.co.uk or call us on 01438 488066.

©2017 Agility3 Limited

Agility3 are exhibiting at RailSIMtech – come and see us!

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RailSIMtech is the only business event in the world dedicated to the use of simulation and visualisation within the rail industry and we’re delighted to announce that Agility3 will be exhibiting throughout the event.

During RailSIMtech, which is being held at The NEC in Birmingham on the 8th, 9th and 10th of November 2017, we will be demonstrating a selection of our interactive 3D software and content that help our clients realise significant and genuine benefits in the rail sector.

If you’re interested in simulation and visualisation solutions to help improve your rail projects’ stakeholder engagement, engineering planning and decision making, training, communication and more, then we encourage you to sign up and visit Agility3. Click here to register for the event.

For more information, please contact us via info@agility3.co.uk or call us on 01438 488066.

©2017 Agility3

Agility3 win MS&T Magazine “Up and Coming” Organisation Award!

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Today, the winners of the “2017 Industry Simulation & Training Awards” for MS&T Magazine have been announced and we’re delighted to have been selected as a winner in the “Up and Coming” organisation category. Take a look at the full list of awards here.

MS&T is a leading publication that focuses on the areas of modelling, simulation and training in the defence industry. Despite us having an extensive background in defence simulation and training, Agility3 is a young company and we’re thrilled to be given such high esteem and recognition by the industry.

We are very proud of the work we do in the defence industry, working with some great companies such as BAE Systems, QinetiQ, MBDA and Inzpire, helping them to develop high quality training and simulation solutions for our armed forces.

For more information please feel free to contact us via info@agility3.co.uk or call us on 01438 488066.