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- Anamorfoses e perspectivas curvilíneasPublication . Araújo, AntónioUm texto relativo à construção de perspectivas cilíndricas e esféricas.
- Topologia, anamorfose, e o bestiário das perspectivas curvilíneasPublication . Araújo, AntónioFaz-se uma breve digressão pelo catálogo das perspectivas curvilíneas centrais, descrevendo algumas das suas propriedades topológicas, geométricas, e ópticas, enfatizando a sua ligação com o conceito fundamental de anamorfose com vista a esclarecer alguns equívocos clássicos relativos à posição fundamental ocupada pela perspectiva clássica.
- Using off-the-shelf AR and VR software for teaching immersive perspectives to 9th grade studentsPublication . Flores, Manuel; Araújo, AntónioRecent research has argued that an immersive reformulation of the concepts of anamorphosis and perspective can have beneficial effects on the teaching of these concepts to young students, and a didactic itinerary for Portuguese 9th grade students has been proposed and executed along these lines. A part of this reformulation is an integration with VR and AR visualizations which was implemented with off-the-shelf software. We report on both the advantages and limitations of these off-the-shelf platforms and propose adaptations and alternatives that might improve the didactic experience.
- Cadavre Exquis: Forking Paths from surrealism to interactive filmPublication . Silva, Bruno Mendes da; Tavares, Mirian; Costa, Susana; Araújo, António
- Canon and process in the 3D modeling of human anatomyPublication . Azevedo, Hugo de; Araújo, AntónioThe authors argue that the concept of the anatomical canon is not just an arbitrary standard of anatomical beauty but an indispensable mnemonic tool for the artist. The authors further argue that the canon is most relevant when adapted to a specific artistic process and tools, and in particular must be updated to the requirements of the digital tools of 3D modeling. A proposal of such a canon is discussed, as well as the process of its synthesis from standard 3D primitives and its artistic applications.
- Ruler, compass, and nail: constructing a total spherical perspectivePublication . Araújo, AntónioWe obtain a construction of a total spherical perspective with ruler, compass, and nail. This is a generalization of the spherical perspective of Barre and Flocon to a 360-degree field of view. Since the 1960s, several generalizations of this perspective have been proposed, but they were either works of a computational nature, inadequate for drawing with simple instruments, or lacked a general method for solving all vanishing points. We establish a general setup for anamorphosis and central perspective, define the total spherical perspective within this framework, study its topology, and show how to solve it with simple instruments. We consider its uses both in freehand drawing and in computer visualization, and its relation with the problem of reflection on a sphere.
- Anamorfoses e outras tecnologias imersivas no contexto da educação artísticaPublication . Flores, Manuel; Araújo, António; Figueiredo, MauroApresentamos uma proposta de investigação na área da média-arte digital onde se pretende combinar os princípios da anamorfose com as novas tecnologias baseadas na realidade aumentada. Esta perspetiva tem subjacente a ideia de que é possível relacionar a anamorfose cónica com as projeções realizadas em Realidade Aumentada. No âmbito desta investigação propõe-se uma abordagem ao estudo da perspetiva centrada nos contributos de Dürer e nos conceitos fundamentais da construção de anamorfoses. Pretende-se refletir sobre as possibilidades desta abordagem metodológica e analisar os seus contributos no desenvolvimento da capacidade de visualização espacial dos alunos do 3º ciclo do ensino básico e, desta forma, facilitar a compreensão dos conceitos relativos ao ensino da geometria.
- Applications of anamorphosis and mixed reality in a classroom settingPublication . Flores, Manuel; Araújo, AntónioWe report on a novel use of handmade anamorphoses in connection with Mixed Reality in a classroom setting involving Portuguese 9th grade visual education students. This is based on a conceptual reformulation of anamorphosis that makes it intrinsically immersive and connects it naturally with digital visualizations. We propose that this is a useful device for motivating the study of perspective and descriptive geometry for young students.
- Drawn onto a skybox: an invitation to collaborative immersive drawing using the spheri platformPublication . Araújo, António; Olivero, Lucas FabianWe describe an installation that invites the audience to collaborate on the performance of immersive drawings that will be visualized on-the-fly using the custom hardware-software platform Spheri. These drawings are made on a flat surface using traditional physical materials and following a modular tracing process that helps the user conform to the rules of cubical spherical perspective. Concurrently with the drawing performance, the Spheri platform captures the drawing and converts it into an immersive VR visualization on-the-fly, while tracking the drawing motion and choosing the camera viewpoint accordingly. The installation explores the new media of immersive handmade perspectives as well as new forms of intuitive and performative visualization. Countering the expectations of digital media as instruments for efficiency and ease of production, it aims instead at leading the user into slow and pondered geometrical thinking through handmade immersive drawing.
- HIMmaterial: exploring new hybrid media for immersive drawing and collagePublication . Araújo, António; Olivero, Lucas; Antinozzi, SaraWe propose an installation that explores Hybrid Immersive Models (HIM), the conjunction of digital VR panoramas with physical, handmade spherical perspectives and anamorphoses, as a new hybrid art medium that connects traditional drawing with digital, immersive art, creating a dialogue between material and immaterial forms of visual expression.