Projection Mapping

We present the first public exhibition that uses HTC Vive and TouchDesigner to projection-map moving objects in real-time in 3D space. Our case study is an exhibition of the media artwork " The Playground ". During this exhibition we involved the public. They found small sculptural pieces that were hidden in public areas, they brought these pieces to an exhibition space and connected them onto a central sculpture. People could also take a photo of their city environment and upload it to a webpage. When a person entered the exhibition space our system projected this person's photo onto the small sculptural piece that was in their hand. Our system tracked and projected onto this piece as it moved around an exhibition area. All of the public's photos were also projection-mapped onto a co-created central sculpture. Our contribution benefits designers, artists and researchers who want to make playful experiences that involve projection-mapping moving objects in real-time in 3D physical space using relatively inexpensive, easily accessible tools.

Hagia Sophia is one of the examples that contain the most important surviving artistic components of Byzantium. It has undergone various interventions in different periods with the effect of periodic transitions between church, museum and mosque functions, and the artworks it contains have been affected by these interventions.
As of July 2020, collective worship activities have started with the conversion into a mosque. This change of function made it necessary to cover the mosaics on the abscissa on the grounds that “it prevents the health of worship” in the space. Various initiatives have been taken by the Directorate of Religious Affairs towards this goal.  Although techniques such as “blackout” were brought to the agenda, as a result, the mosaics were covered with a moving curtain system, and with this approach, the interior characteristic and artistic integrity of the building was damaged.
In this study, the possibilities of today's technology to hide the mentioned mosaics during the prayer times were evaluated and it was revealed with the analysis that projection mapping is the technique that best meets this purpose. In addition to the advantages provided by the technique, the possibility of the light emitted to damage the mosaics is one of the areas that the article investigates in terms of protection approaches. This original study, which proceeds with the science of optics as a reference, presents the results obtained by focusing on the mathematics of protecting mosaic works from light.

Ayasofya, Bizans’ın hayatta kalan en önemli sanatsal bileşenlerini içeren örneklerinden biridir. Kilise, müze ve cami fonksiyonları arasında dönemsel geçişler yaşamasının da etkisiyle farklı dönemlerde çeşitli müdahaleler geçirmiştir ve barındırdığı sanat eserleri bu müdahalelerden etkilenmiştir.
2020’nin Temmuz ayı itibariyle tekrar camiye çevrilmesiyle birlikte toplu ibadet faaliyetleri başlamıştır. Bu fonksiyon değişikliği, mekân içindeki “ibadetin sıhhatini engellemesi” gerekçesiyle, apsis bölümünün üstündeki mozaiklerin örtülmesini gerekli kılmıştır. Diyanet İşleri Başkanlığı tarafından bu amaca yönelik çeşitli girişimlerde bulunulmuştur. “Karartma” gibi teknikler gündeme getirilse de sonuç olarak hareketli bir perde sistemi ile mozaikler örtülmüş ve bu yaklaşımla yapının iç karakteristiği ve sanatsal bütünlüğü zedelenmiştir.
Bu çalışmada, bahsi geçen mozaiklerin ibadet vakitlerinde gizlenmesi için günümüz teknolojisinin imkânları taranmış ve projeksiyon haritalamanın bu amacı en iyi karşılayan teknik olduğu analizlerle birlikte ortaya koyulmuştur. Tekniğin sağladığı avantajların yanında yaydığı ışığın mozaiklere zarar verme ihtimali, koruma yaklaşımları açısından makalenin araştırdığı alanlardan biridir. Optik bilimini referans alarak ilerleyen bu özgün çalışma, mozaik eserlerin ışıktan korunmasının matematiğine odaklanarak elde edilen sonuçları sunmaktadır.