Willem II passage
Technology, social security and atmosphere reinforced in an architectural design

Can technology, social security and atmosphere reinforce each other in an architectural design? The Willem II passage is a new connection that connects the city center of Tilburg with De Spoorzone development area.

In a process of designing, building, testing and customizing, the architects developed a refined but robust glass brick façade. The material use of the façade and ground level, the rhythm and the composition refer in a contemporary way to the architecture of the surroundings.

View of the passage with the glass bricks on both sides
Photo: Stijn Boellaert

LEDs are integrated into each glass brick, which can be controlled at pixel level according to color and intensity. The light patterns respond to passersby and accentuate the tactility of the passage. The programming of the light patterns adapts to the time, the season, the weather or for special events. The lighting design emphasizes the architecture, and does not treat the walls as a screen, but as architectural units that come to life. 

The interactivity operates in the background and joins the architecture. This makes the passage a natural part of the public network in the city and avoids the passage becoming obsolete due to the aging of its technology. The Willem II passage is an important public connection. The total design therefore focuses on public significance and cultural sustainability. The whole must leave a lasting impression and after twenty or thirty years just as interesting as immediately after completion. Familiar, self-evident and robust, but innovative, rich and refined. Built to Last.

Animations principles within the glass grid of the passage
Documentary about the Willem II passage from design to realization
Produced by: GlobalEyes productions

Controlled by an app
The city can control the lights, adjust themes for special events, set special colours themselves via a custom-made webapp. The app gives a preview of the selected effect and also allow you to preview the settings in the real passage for 20 seconds.   

Screen recording of the OPENRNDR software that controls the lights in the passage
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RNDR is a design studio for interactive media that develops ‘tools’ that are only finished by how they are used.

To achieve this, we develop processes, create structures, design visualisations, code programs, and create interactions. The end result can manifest itself across different media, ranging from interactive installations, data visualisations, generative identities, prints and everything in between – often real-time. We are triggered by how information and technology transforms networks, cultures, societies, relationships, behaviours, and interactions between people.

RNDR was founded in 2017 in The Hague, (NL). Its main members have years of experience as partners, computer scientists, designers, and developers at LUST and LUSTlab.

One of our core projects, and basis for most of our projects, is OPENRNDR, an open source framework for creative coding –written in Kotlin for the JVM– with over seven years of development, that simplifies writing real-time audio-visual interactive software. OPENRNDR is fundamental for the work and software capacity of RNDR as a studio, as it allows us to realize complex interactive works.

Jeroen Barendse (NL), partner. Design and art direction. Former partner of LUST and LUSTlab. Awarded BNO Piet Zwart Oeuvre Prize 2017
Edwin Jakobs (NL), partner. Computer scientist, creative coder and visual artist. Creator of OPENRNDR
Boyd Rotgans (NL), partner. Creative coder & interaction designer
Viola Bernacchi (IT). Design & data visualisation
Els van Dijk (NL), Office manager
Ferdinand Sorg (DE), Intern
Previously at RNDR
Jaekook Han (KR), Intern, Graduate Interactive Telecommunications Program, NYC, 2019
Gábor Kerekes (HU), Developer, 2017-2019
Amir Houieh (IR), Developer, 2017-2018
Łukasz Gula (PL), Intern, Royal Academy of Art, The Hague, 2018
Noemi Biro (RO), Intern, Willem de Kooning Academy, Rotterdam, 2018
Selection of exhibitions
Open Highway, Raum, Utrecht, 2018
Typojanchi Typography Biennale Seoul, main exhibitor (as LUST), 2017
Cartographies of Rest, interactive installation at Mile End Art Pavilion in London (as LUST), 2016
Hyperlocator, What’s next, Future Tomorrow, 38CC Delft (as LUST), 2016
Type/Dynamics exhibition, Stedelijk Museum Amsterdam (as LUST), 2014
Selection of lectures
MiXit conference, Lyon, 2019
Google Span conference, presentation and demo, Helsinki, 2018
JFuture conference, Minsk, 2018
Creative Coding Utrecht, Launch of OPENRNDR, 2018
Selection of workshops
Workshop OPENRNDR at Artez Interaction Design, Arnhem, 2019
Processing Community Day 2019, CCU and Sensorlab, Utrecht, 2019
Royal Academy of Art (KABK), Techweek, The Hague, 2019
Utrecht School for the Arts (HKU), OPENRNDR workshop, 2018
La Scuola Open Source, 1-week workshop, Bari, Italy, 2018
Two-week workshop at TUMO foundation, Yerevan, Armenia, 2019



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2512 BP, The Hague
+31 (0)70.3635776



Open source framework for creative coding that simplifies writing real-time interactive software