'AC/DC – Augmented City / Digital creative Citizenship' is an artistic-technological-scientific project by takomat (Germany), Kitchen Budapest (Hungary) and X-OP (Slovenia), cofounded by the European Commission. The creative potential and energy of our European Cities are generated in the minds of their creative citizens and artists. This mental activity rises in the streets, places and buildings creating a huge virtual space of ideas, thoughts, visions and creative expression that is even bigger than the real city made from concrete and steel. The AC/DC project team wants to interconnect this virtual realm of ideas, thoughts and creativity with the real city. It discovers, designs and develops digital tools that interconnects the virtual space of European artists and creative citizens with the real space of their cities. With the help of AC/DC’s digital tool set ( the AC/DC transformer toolkit ) and digital skills European artists and culture players can use new ways of collaboration, initiate public involvement in artistic creation and reinforce the creative potential of graphic and visual art, new media art, street art and conceptual art.

In order to contribute to the development of the transformer artwork, Kitchen Budapest (KiBu) crew created two Augmented Reality installations (Time passing by, Floating islands), and did a research on AR and VR, aiming to experience this technology and gain knowledge for the mentorship of the upcoming residents.By launching an international open call we invited applicants to present an implementable artistic idea with strong social focus based on the intersectional field of Augmented Reality and City space. By developing a 3D visual identity and communicating on several channels (video teasers, facebook ads, landing page, newsletters, posters, etc.) we put significant efforts to raise visibility and disseminate the key values of the project. Regarding the complexity of the projects, we organised a 3 month long residency where all the tools, devices, financial support, knowledge and mentorship was given to enable the realization of the supported project.

During the residency lead by Kibu, artists had two occasions to demonstrate their projects: one was at Demo Day on 7th July, 2016, an event organised every half year to present KIBU's current projects. Residents could pitch their work and present their first working prototype to the wide public (170+ visitors).The other public display was at the Reality Research Festival, where 'Neuro Gym' was realized, an exhibition involving more than fifteen additional artists in the field. Concurrently with 'Neuro Gym', five project presentations of transformer tools were held in the city space. The Public test display was connected with the AR Festival in a one week long timeframe and jointly communicated in order to raise higher visibility for both activities. While Audiovisual Map is a rather contemporary artistic experiment, exploring an alternative audio-visual experience of public spaces through a mobile app and in VR, Unfolding Budapest is focusing on the communication of cultural values.

Kitchen Budapest, the main organiser of the Reality Research Festival in Budapest used the occasion of the Festival to call together a project management meeting. By organising this meeting on 21-22 of October, 2016, Kitchen Budapest aimed to accomplish an active exchange of experiences and knowledge of AC/DC Partners, collected during the 8 month long period since the last meeting in Maribor (25-26 February, 2016). Further plans for campaigns and productions were set. Participants were Peter Tomaz Dobrila (Kibla, X-OP), Cameron Bobro (Kibla, X-OP), Maria Gardizi (Takomat), Daniel Schwarz (Takomat) and members of the hosting organisation, Judit Varga (CEO) and Lili Eckhardt.

Within the AC/DC framework 4 workshops has been organised by Kitchen Budapest. The goal of the Hackathon workshop (4-5, July 2016) was to challenge the Unfolding resident team among other Kibu mentored teams to participate in a hacking marathon and realize the first working prototype of their project within 24 hours. In this motivating environment and the pressure of time, with the help of Kibu experts and all the needed equipments they could succeed. During the AR Festival 3 other workshops were organised with strong educational approach and 2 of them were led by external professionals (NL, AT) to support trans-national collaborations and mobility. All of the workshops were free of charge as our intention was to dissolve the frontiers between the conceptual category of artist and the audience as a passive participant and enabling all the participants to learn the skillsets and creative tools of the creators.

Reality Research Festival 2k16 took place on 21-27 October 2016. It was a concerted effort by non-profit cultural organizations and NGOs, led by Kitchen Budapest to map contemporary concepts of reality and understand the cultural and social potentials of the new pervasive technologies.The festival had strong orientation towards projects in the combined fields of art, technology and urbanism: it investigated how the new technologies affect our perception and what happens when augmented-, virtual- or mixed reality, computer simulations and serious gaming set the benchmarks for reality. The aim of the festival was to support projects, mobilize international experts, raise visibility around AC/DC, and open up the topic to new audiences. Several Augmented City project activities were connected under the festival's umbrella event in order to raise larger visibility for activities dealing with highly specific topics around one big brand.

takomat designed the AC/DC website to be an interactive landscape of all activities that have taken place during the course of the project. The goal of all design decisions was to develope an asthetics of digital urban enhancement and the almost magical possibilities every city space holds for artistic explorers. The partner cities are visualized by their maps melted into one floating digital island, populated with icons of each activitiy that took place. The activity icons are positioned at the respective partner city that hosted and/or managed the activity. The augmented city is the idea space where several cities can collide and blend into one urban experience, evoking and materializing real output that is physically accessible locally but can be revisited and altered digitally.

How can a digital transformer tool bring new ways and even innovative practices of collaboration for European artists and culture players? The AC/DC partners put a very strong focus on the development of new software and the interconnection of existing software application. KIBU concentrated on the development of AR apps, while takomat developed the connection of easy-to-use online tools for content creation with the engineering tools for city planning. The goal was to enable a connection between the real city and the artistic work that is created within this real city space. To achieve this, takomat enhanced its serious game and simulation software VISIMPLE – which is the result of cutting edge research in German research on urban planning and engineering - to make it usable for artists and creative citizens. During this process, four AC/DC transformer software applications were developed. Furthermore, eight AC/DC transformer projects were realized - hosted by all partners. In addition to that, a transformer online gallery was opened: An interactive map for displaying artworks in european cities with a connection as an input for takomat's AC/DC transformer software application.

takomat invited Youngju Kim – a Korean game designer and programmer – for creating the interactive experiences with the AC/DC transformer. She started the developement for AC/DC transformer by re-programming urban planning tool for citizen science and civic participation 'Visimple', in order to make it usable in artistic contexts. Youngju's work added to takomat's approach on takomat's most important project objective – to provide artists with digital tools for new ways of artistic creation and collaboration. Building on that experience, she eventually began to work on the development of the AC/DC website. Youngju Kim's work became crucial for the technological core development of the AC/DC project. As the project more and more demanded for high consistency and continuity in design and software development, Youngju's residency was prolonged to the extend of originally two consequtive artistic residencies. Furthermore, takomat decided to employ her for the remaining project time, so she could finish her work self-determined and thoroughly.

takomat presented the interdisciplinary software tool VISIMPLE for urban planning for citizens and civic participation at the IFAT 2016 trade fair in Munich, having public presentations at the booth of Fraunhofer Research Institute. During its five-day stay at the fair (from May 30th. – June 3rd 2 2016), the takomat team did software demonstrations and showed the tool to the public (Experts in engineering, city and infrastructure planning, citizens, students). The transformer shows the intersection of arts (visual game design, urban storytelling, civic participation), technology (planning and engineering software) and science (integrating real-world data into the virtual urban space) We showed how people can use this engineering and planning software to express their own creativity and ideas in and for the city and how this tool can be used for artistic, societal and environmental purposes in a virtual urban environment. It was also discussed with experts how this integration of engineering software and civic participation can create new business models that empower citizens in their digital participation and bring benefits for the engineers at the same time. With this public display takomat showed how the integration of arts, sciences and technology could look like for urban citizens and their digital participation and creative empowerment.

During the Reality Research Festival in Budapest, partners shared their experiences about the development of the Transformer and other practical issues in several expert exchange meetings. The meeting served as an occasion to introduce the resident artists of Kibu to the AC/DC Partners. The Partners contributed to the Festival programs by giving lectures at the international conference of the Festival (so called Talks) with 10 other external speakers in order to maintain AC/DC as a project that is open for external input and reflection. One of the key objectives was the dissemination and communication of information on AC/DC activities beyond the project stakeholders. During several expert exchange meetings, cultural exchange on a european level was initiated.
The conference itself was an occasion for exchanging experiences as the topics were strongly in-line with the AC/DC project's goals, aimed to map and dissect contemporary concepts of reality (artistic, philosophical, technological, futuristic, etc.)
The event itself had a high visibility: 12 000 people were reached in Facebook and 342 people took part in the discussion on Facebook.

Takomat hosted an internal meeting in Cologne, in order to discuss further proceedings and synchronize all partners recent activities concerning the project. The partners aimed to share the experiences and knowledge of AC-DC Partners, collected during the period since the last meeting in Budapest ( 21-22 of October, 2016).The internal meeting from 29th - to 30th of May also prepared all visiting partners for the expert meeting taking place at takomat. Participants were Peter Tomaz Dobrila (Kibla, X-OP), Lili Eckhardt (Kitchen Budapest), Maria Gardizi (Takomat), Daniel Schwarz (Takomat) and members of the hosting organisation.

The public display of results from the AC/DC workshop can be found in the online gallery. In addition to these initial results, more uploads will complete the projects vision of creative citizenship in an ongoing process: The public is openly invited to contribute by using the Ushahidi tool to create and curate their own digital art spaces wherever they are. The public display of results also extended to the projects presence at DIGILITY 2017 at the Cologne Fair. The convention proudly hosted the Augmented City project and its artists as part of their event on AR and VR developement, creating a space for designers, innovators and pioneers of this rising artistic and economic field. Visitors of the convention showed a huge interest in the Augmented City and its transformers. Expert exchanges between project partners takomat, kitchen budapest, invited artists and collaborators from the project took place openly among professional creatives and curious laymen.

Clearly, a project on augmented experiences needs more than a digitalized writing on all activities to serve as a complete documentation. Takomat decided to produce an enhanced e-Book including direct links to video contents and photo galleries, as well as a handy, interactive table of contents. The goal was to develope a visual design, that could transport the idea of a new reality and the sense of wonder that digital enhancement can add to a city. Rediscovering ones own surrounding can lead to surprises and may shed a new light on a city and its specific characteristics. Maybe, every city is an island? On the other hand, a city is a city is a city - most of them share similar advantages as they share similar troubles: Mobility, Pollution, job market, housing shortage, culture and subculture but also poverty and crime etc. Maybe all cities unify as one island, sharing ideas and hopes? What answers can citizens find in other cities? Why not share our visions of a better city on a digital island called Augmented City?

Conducted in Cologne, results of the Augmented City Workshop were displayed and presented at the Open Day of the School of Games . Visitors of all ages enjoyed the technological and artistic approaches produced by young game artists. The audience was invited to experience a VR Vision of the city of Cologne with a twist: After being introduced to the rather unpleasing sights the artists had spotted, they stepped into the realm of the future city dream. The city as a playful and positive open space for creative citizenship amazed and inspired participants. While some dwelled on the countless discussions and further vision and opinion exchange based upon the exhibits, others dove deeper into VR and AR technologies for the first time. Visitors were also invited to participate in the project by uploading creative approaches to their city of the future to the project's online gallery.

takomat hosted a talk on 'VR & the city – Augment your citizen' by Arne Ludwig from AR and VR full service agency HEADTRIP in order to gain knowledge and expertise from an experienced film-maker turned VR/AR pioneer. Taking place at takomat's sunny open space teaching garden, Arne Ludwig introduced the visitors to his very own style of designing highly poetic and emotional AR experiences. He presented state-of-the-art concepts and campaigns as well as outstanding works by laymen. Afterwards, an open discussion with present game designers, art managers and school owners lead to further insights on technology development, future outlooks and the artistic freedom of creativity an 'augmented movement' is able to unleash.

Conducted by takomat, this very unique workshop took place at the School of games in Cologne. During a One-Day field-trip, 16 aspiring game artists from SoG searched their home city Cologne for urban spaces they would like to change or create anew. During their walks, they would upload pictures of their findings to AC/DC Online Gallery using the Ushahidi software on their smart phones. Back at school, they would start brainstorming, sketching and discussing first ideas within their groups. In an ongoing process they decide on favourite projects and ideas and build them as 3D-Assets, developing their urban vision further. There are no boundaries set here: Demolishing the newly opened shopping mall to plant some trees for a hanging tree house forest? Why not. That bank building looks more like a dystopian prison? A planted façade might work wonders! The young artists are constantly developing their ideas further in groups of 3D modellers, designers and coders. Their results will be presented at a special event night at School of Games, open for citizens, artists, civil officials and politicians.

takomat did a public display of AC/DC transformer with a keynote speech at the GALA conference 2016 (International conference for serious games) in Utrecht at the Hogeschool Utrecht. Beside the European Conference on Game Based Learning (ECGBL), the GALA Conference is the most important European conferences for Serious Games. Daniel Schwarz from takomat gave a keynote speech about the VISIMPLE planning and simulation tool and how it can be used for civic participation, creative empowerment of citizens by giving them the possibility to play their city and develop new creative solutions for their city as a living (digital) system.

After takomat's artist in residence, korean game designer and programmer Youngju Kim became a crucial part of the development team of the AC/DC transformer, her residency was prolonged, in order to achieve the continuity that was needed for core software development. Instead of a second residency, takomat restructured the nature of their artistic promotion in AC/DC: By re-programming citizen science and civic participation tool 'Visimple', the application became usable in artistic contexts. The next step was to invite digital artists to extensively test the AC/DC transformer as an artistic tool. In order to find out about necessary conceptual changes and software improvements, artists where strongly encouraged to work practically with the tool. As a result, instead of inviting another artist in residency, takomat did not only prolong Youngju's involvement but also extended the artistic collaboration with a large number of local artists in a continuous and highly interactive communication between artists and developers. The software is used in 13 real artistic projects in the urban environment of Cologne, creating artworks as a result of the AC/DC transformer toolkit.

A strong vision of the project involved the implementation of an interactive map into AC/DC framework. Early test scenarios dealt with Google Maps and possible modifications of the application, but proved impractical. Further research led to a tool called "Ushahidi": Originally used in the aftermath of Kenya's presidential election in 2007, the tool allowed to collect eyewitness reports of violence reported by email and text message and placed them on an interactive map. AC/DC transformer utilizes this "Ushahidi" web device and mobile app for collecting and displaying the contributions of European artists and creative citizens to their cities on an interactive map.

An info-campaign on the sharp launch of transformer is run in order to shed light upon the open invitation to register and contribute to the AC/DC transformer and online gallery. Citizens & artists are called upon to share their vision for the future of urban life. To the digital public of visitors and contributors, the AC/DC transformer is represented by a digital platform of their respective city. Woven into takomat's software framework, Ushahidi serves as a base application and will be launched in its online version, after the succesful artists' testing phase ends.

takomat had a cooperation with Paul van Zoggel, Game Artist and Researcher at GEODAN in the Netherlands. This cooperation mixed arts, science and technology to raise creativity of digital citizens in an urban context. Paul van Zoggel visited takomat GmbH for a 3-days-workshops lasting from August 24th – August 26th 2017 in Cologne. This 3-day-workshop was extended with several skype tele-conferences before and after the workshop. Paul van Zoggel also contributed to the AC/DC eBook with his vision of a future urban techno-artistic society. How can creativity of digital citizens in their own urban environment be unleashed, following VISIMPLE’s slogan "Play your city!"? How can artistic demands and innovation be communicated to a wider public? During the course of the 3-day visit, several testing sessions of transformer tool software took place. takomat and Paul explored together the usage of the tool for civic participation in urban environments and creative city planning and how city citizens can design their very own vision of their city. Each testing and presentation was followed by fruitful discussions of possible enhancements of VISIMPLE transformer tool and future AC/DC activities. Furthermore, he was presented with AC/DC's general project vision and achievements of the project so far.

takomat and X-OP joined forces to organize a public competition in MAY 2017. Together they developed a concept for a possible artistic residency, with takomat producing the visual brand and style of the call as well as the digital flyer and poster for online promotion. Takomat, X-OP and KIBU successfully published and promoted the artistic competition on their websites and social networks.

Ivor Diosis concept based on light sabres functioning as switches for augmented animations. The digital artwork works on tablets and smartphones. Based on this project, Mr. Diosi was interviewed by Annick Bureaud for art-sci magazine Leonardo OLATS, one of the best international magazine for media and digital arts. Furthermore, a presentation of his work was disseminated in the form of a podcast. The AC/DC artist used the support of the CIANT device to come up with a concept art for augmented reality application for smart devices with social impact for public urban areas. The project was delivered to the AC/DC consortium and it was decided that the artist will be given a chance to develop it under the lead of project partner Kitchen Budapest.

After a successful kick-off meeting, the second step to a deeper understanding of the newest trends in AR was the international call, targeting local and neighbouring artists to bring new aspects, ideas and inspiration on how to establish new ways of art creation using new digital technologies. The aim of the open call was to encourage participants - artists and creators - to apply with an implementable artistic, technological idea with strong social focus based on the intersectional field of Augmented reality and City space. The award was a 3-Month long residency at Kitchen Budapest innovation-and media lab where all the tools, devices, financial support, knowledge and mentorship was provided for enabling the realization of the supported project. By developing the visual identity of the call and communicating the key values of AC/DC, KIBU significantly raised visibility and dissemination of information about the AC/DC project.

The Kick-Off meeting took place from 25th to 26th of September 2015. All project partners met at CIANT's headquarters in order to conceive and discuss visions and possibilities for future art projects. Prospects of potential creative collaborations were presented and basic software solutions were set. The fruitful discussions led to a general guideline of how to understand the concept of an augmented city, theoretically and practically. Working with maps and other forms of orientation systems and similar tools became one of the fundaments of further conceptual approaches. CIANT's Ondřej Cakl introduced Prague as a vibrant european hotspot of VR and AR artists in urban contexts. Together with Pavel Smetana, he illustrated Prague's AR and street art scene with examples of CIANT's cultural activities and workshops. Lili Eckhardt presented KIBU's previous works in the fields of urban art exhibition culture and Budapest's vibrant culture of artists in residence. Peter Dobrila and Cameron Bobro from X-OP shared their profound knowledge of contemporary artistic approaches to the topics discussed and their experiences with exhibition planning. takomat's Daniel Schwarz and Maria Gardizi presented the technology-based approach of civic participation in urban planning scenarios. Furthermore, they sounded its potentials as a highly creative tool for citizens and artists. Early suggestions for possible software solutions were made during brainstorming sessions on concepts and narrations.

The permanent public display of results was moved right after the residency of Ivor Diosi and was officially presented in the abandoned post office at Prague 1, the so called "ex post" space, on 15th December 2015. An international group of artists, developers and cultural actors had a chance to test Diosi’s installation of interactive motion capture system in VR with the support of local digital artists Frances Sanders (digital visuals in real time) and Marie Čtveráčková (digital music in real time), who also contributed to activity nr. 18 – Artistic Workshop.

Parallely to Ivor Diosi, Davy Madamour worked at CIANT on his sophisticated concept art for tools of display and analysis of the respiratory movements and the ventilate flows in real time. The project proposes as a performance in augmented reality on the possibilities of perceiving the influence of Augmented Reality on people in an environment. Concerning the development of the augmented reality and by needs for tools of translations of the data, the project suggests to see the breath as an influence in a virtual environment to obtain a physical and sensitive reading of the individual in the area. Breath of lines works as a tool stenographic recoding itself, but at the same time it functions as an interactive pointer of the air masses.

In order to develope artistic results consistently, CIANT made use of the workflow that Ivor Diosi had managed to establish during his successful residency. CIANT held a workshop on using motion capture and brain-computer interfaces as a means of artistic performance. Moreover, the workshop was co-tutored by local digital artist Frances Sanders (interactive real time visuals) who had already collaborated with artist Ivor Diosi during his residency. The workshop attracted around 20 dancers, software developers and inter-media artists to gather together in Prague for a three day long collaborative hands-on event learning about interactive motion capture installation with application in augmented reality and virtual reality.

One of the world's top contemporary artists, Patricia Piccinini, holds the artistic residency from 21/06/2017 to 05/07/2017 in Maribor. AC/DC project proudly hosts this year's only, world-exclusive opportunity to see the artist's works collection in Europe. Visitors get a chance to participate in her lectures and are invited to discuss with her. She probably is the most versatile artist in the field of physical AR, but nonetheless is not avoiding its virtual contexts underlined in media compliance. Her exhibition has been ranked as the Top Contemporary Show of 2016, attracting more than one million people. Asked about her art in a 2014 interview, she stated, "It’s about evolution, nature – how nature is such a wonderful thing, we’re just here to witness it, it’s not here for us – genetic engineering, changing the body." Piccinini has an ambivalent attitude towards technology. She uses her artistic practice as a forum for discussion about technology's impact on life. She is keenly interested in how contemporary ideas of nature, the natural and the artificial are changing our society. Specific works have addressed concerns about biotechnology, such as gene therapy and ongoing research to map the human genome. She is also fascinated by the mechanisms of consumer culture. Patricia Piccinini works in a variety of media, including painting, video, sound, installation, digital prints, and sculpture.

For the AC/DC Project the Association X-OP carried out several residencies with various artists working in augmented reality. Two artists had methodically split residencies: The first part was research and presentation oriented while the second part aimed at demonstration and installation.
Dr. Brigitta Zics (HU/UK) was artist in residence twice, from 08.12.2015 to 20.12.2015, when she presented development of her augmented reality work Mind's Cupola Eye Resonator, and from 08.11.2016 to 15.11.2016, when she built an installation and revealed the finalised AR system Eye Resonator / an immersive art installation that spans across arts and sciences and includes somatic and multimodal interfaces, data visualisation and documentation on her work.
Žiga Pavlovič (SI), who studies in Graz (Austria), developed new AR-VR interface for 3D Eyewear that was publicly presented, demonstrated and discussed. He was in residency from 01.05.2016 to 20.05.2016.
Adela Jusić (BiH) had a two part residency, first from 01.10.2016 tp 15.10.2016, when she focused on public presentation of he work on Illegal and performance dealing with displacement and loss, and from 05.12.2016 to 18.12.2016, when she set up an installation integrating various media, from audio and video to photo, processed through her own AR methods that act as a sharp amendment to the disinterested, and as a provocation to our numbed feelings and muted sense of empathy.
Amanita Design, a small, independent game development studio based in the Czech Republic, were hosted from 23.12.2016 to 09.01.2017 with showcasing their entire production, which was available to users, visitors. Especially interesting for children, the artworks held a didactic quality that helped to build up ecological and social awareness.

With all partners of the AC/DC project present (TAKOMAT, KIBU, CIANT and X-OP), the Public test display of Transformer was performed in an open session. Project results were communicated and refined. It was carried out from 15/05/16 to 18/05/16. The Public test display of Transformer turned out to be a good practice for all four institutions in showcasing their best results in integrated AR. Discussions between partners called attention to necessary upgrades in creation and presentation of the on- and off-line applications either using physical or non-physical media.

During his artistic residency at X-OP, Žiga Pavlovič (SI) publicly presented, demonstrated and discussed development of his work with the AR-VR interface for 3D Eyewear. Using upgraded technologies, Augmented and Virtual Reality and the Kinect sensor for movement capture, he developed his new AR interface for 3D Eyewear during his stay. The AR interface was publicly presented, demonstrated and discussed in May 2016.

For the AC/DC Project the X-OP association carried out several Public displays of AC/DC with various artists working in augmented reality. Exhibiting artists were Dr. Brigitta Zics, Žiga Pavlovič, Adela Jušić, Amanita Design and Patricia Piccinini. Please check the artists short bios for further information on their work and respective exhibitions at X-OP.

From 15/05/16 to 18/05/16 the Experts exchange and management meeting was carried out in Maribor with all partners – TAKOMAT, KIBU, CIANT and X-OP – and their representatives. Partners discussed details of project planning and exchanged expert knowledge.

X-OP organised several Artistic Workshops in Transformer usage encompassing the many aspects of AR and VR systems and their applicability within physical and non-physical media through visual, sound, performance, installation, ambient presentation in virtual worlds, public places and gallery space. Among most accomplished were Dr. Brigitta Zics, Žiga Pavlovič, Adela Jušić, Amanita Design and Patricia Piccinini. Please check the additional info for all artistic workshops on AR and VR in Maribor.

CIANT's Pavel Smetana was testing interactive motion capture systems and presenting the AR solutions for stage design and body performance at Companie des Gueeteur in collaboration with artistic director of the dance group Luc Petton in Paris as announced in the work programme.

In order to gain knowledge and expertise beyond the European Union area (also mentioned in the first chapter of the Project Proposal, Introduction), Kitchen Budapest sent one of our resident artists, Gábor Pribék to the Chronus Art Center in Shanghai. It helped us to understand Asian technological trends and collect feedback from experts of one of the most famous media lab in the World. Gábor has spent one month there and developed the first working prototype of Audiovisual Map, which he also exhibited at Chronus Art Center. This experience helped him to finalize and execute the Budapest version of the project at Liberty square in an excellent manner. The experiment is a diptych with two versions. The geolocation-based version can be explored on the streets (Liberty square and around) with a smartphone app and earphones. The other version is based on immersive virtual reality, which can be experienced through a head-mounted display, controller and headphones in the exhibition space.