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Item GLRex(The Eurographics Association, 10-8-2006) McDonald, Gerard; -I first taught computer graphics programming on PCs in the late 1980s. We produced images with a few platonic solids in 256 colors. Real-time animation was out of the question. I remember writing programs for my classes to do ray-tracing and hidden surface removal that ran at glacial speed. Despite all the shortcomings, the students enjoyed the classes and the images they could create, even though they were relatively simple. Computer graphics was still something of a novelty, and producing any image for the computer to display was exciting. By the mid-1990s things had changed quite a bit. High-end graphics libraries like OpenGL had become available for the PC. Combining them with improvements in hardware (more memory, faster processors, better video cards), it was now possible to do relatively sophisticated graphics even on low-end PCs. At the same time students' expectations were rising as computer graphics became more pervasive in our culture. They are accustomed to seeing very sophisticated computer imagery in the games they play and the movies they watch. Students expect to be able to create visually exciting projects. But beginning students often find their creativity limited by the tedium of building scenes directly in code. GLRex is an attempt to address this problem. GLRex is a simple modeler that provides the user with interactive assistance in creating code for complex images. The user can create scenes with spheres, boxes, cylinders, and cones, as well as NURB surfaces of revolution and extrusion. These scenes may then be exported as OpenGL-based C programs (or RenderMan RIB files) to be used as a basis for more complex projects.Item The Etruscans and the Afterlife - An Engaging Exhibition with Accurate Scientific, Technological and Communicative Requirements(IEEE, 2015) Guidazzoli, Antonella; Imboden, Silvano; Luca, Daniele De; Liguori, Maria Chiara; Verri, Luigi; Bellavia, Giovanni; Russo, Alfonsina; Lucia, Maria Anna De; Cosentino, Rita; Gabriele Guidi and Roberto Scopigno and Pere BrunetThe communication of museums, with the aim to engage and attract a wider audience, is undergoing a radical change, seeking in ICT a help. The joint exhibition ''The Etruscans and the Afterlife'', hosted by the National Etruscan Museum of Villa Giulia and the Museum of the History of Bologna - Genus Bononiae - presents a strong commitment towards a renewed communicational effort of this kind, merging a traditional display of archaeological findings and spectacular technological applications. The paper presents the three digital applications developed by VisitLab Cineca for the exhibition: a projection show combining 3D architectural mapping, with 10 coordinated projectors, and a holographic projection of the Sarcophagus of the Spouses; the holographic projection of the bronze vase called ''Situla della Certosa''; a Computer Graphics short movie, ''Ati at the discovery of Veii''.Item Replicating perishable artefacts. A project for analysis and exhibition of Early Medieval objects from the Byzantine village at Scorpo (Supersano, Italy)(The Eurographics Association, 2013) Bandiera, Adriana; Arthur, Paul; Imperiale, Marco Leo; Maffezzoli, Alfonso; Frigione, Mariaenrica; Montagna, Francesco; Signore, Grazia Maria; -Artefacts found in an archaeological excavation are sometimes made of perishable or fragile material like wood, iron, or leather. These present obvious conservation problems. This is the case of various artefacts from the Byzantine village of Scorpo (Supersano, southern Italy) that has been the object of excavations by archaeologists from the University of Salento (Italy) since 1999. In 2007 a number of wooden objects were discovered in a well, while in 2012 a hoard of ferrous objects was found near a drystone wall that perhaps enclosed the settlement. Given the highly fragile and perishable nature of the objects, the questions arise as to how to study these artefacts, preserve them for the future and display them to the public. In this paper we will illustrate the methodology developed at the University of Salento to give an answer to all these questions and we will describe the entire process ranging from the discovery of the artefacts, to their 3D digital acquisition and modeling, the eventual digital restoration, the realization of one or more physical copies using a rapid prototyping apparatus (RP), to their display in a museum. Digital models of artefacts and ancient contexts are increasingly used in museums in order to improve communication, also for the disabled. Furthermore, the resin replica of an object, created from its digital 3D model, can also be useful for its preservation and fruition, especially if it is fragile or in poor condition.Item Computer Graphics: An Interactive Introduction with OpenGL(The Eurographics Association, 17-9-2009) Hunkins, Dalton; -Computer Graphics: An Interactive Introduction with OpenGL is a suite of examples and interactive tutorials. The software is created for the person who wants an introduction to computer graphics using the OpenGL API. It is assumed that the reader is familiar with programming in the C++ language; knowledge of OpenGL is not a pre-requisite. Also, the tutorials and examples may be used in conjunction with many of the mainstream books on computer graphics.Item INSIDDE Project - Unveiling the Secrets of Art Through Graphene-based Terahertz Technologies(IEEE, 2015) Consortium, Insidde; Meana, Javier Gutiérrez; Gabriele Guidi and Roberto Scopigno and Juan BarcelóIn this paper we describe how terahertz technology can be applied in different areas of cultural heritage to analyze paintings and ceramics, producing digital surrogates that, together with the developed applications and functionalities, will bring closer art to citizens.Item Teaching CGI Through Real Hands-On Experience(The Eurographics Association, 18-7-2008) Bernar, Carlos; Torrents, Joaquin; -Euroview Animation is developing a methodology for teaching CGI within the Department of Film, TV & Digital Media at the University of Navarra involving the participation of the students in actual production process. We base our educational methodology on the real hands-on experience: our students learn through their participation in the production of a real feature film. The production process of the film inspires and determines the learning process of our students. We consider that our project can be valuable for other educators in CGI because (1) our method has real consequences: our first feature film, Flying Heroes, will be in theaters in 2008, (2) as far as we know, this is the first of-its-kind experience with these requirements in a university and in the industry (3) this kind of project offers many possibilities of collaboration between universities.Item ShaderSchool – A tutorial for shader programming(The Eurographics Association, 9-7-2007) Reimers, Ulf; Beckhaus, Steffi; Thiesen, Malte; -We present a tool for in-class and self-study learning that provides a convenient introduction into GLSL shader programming. The tool presents shaders in an interactive manner, and can be present in-class in a group interactive manner or used as an individual tutorial. In ShaderSchool the materials are presented in sections with interactive assignments integrated into the tool, which help reinforce the students learning. It was created and applied successfully in an university computer graphics class. Additionally, the ShaderSchool tool is extensible to easily incorporate further lessons. 1 IntroductionItem Battery Aachen - Using Landscape Reconstruction for On-site Exploration of a World War One Military Unit(IEEE, 2015) Nollet, Dries; Pletinckx, Daniel; Capurro, Carlotta; Gabriele Guidi and Roberto Scopigno and Fabio RemondinoThis short paper shows the work that has been done in collaboration between Visual Dimension bvba and the Raversyde Museum for the reconstruction of the military site of the Battery Aachen, giving some hints of the further development of the project.Item 3D Semantic Modelling of Scale Models from 2D Historical Plans(The Eurographics Association, 2016) Chevrier, Christine; Chiara Eva Catalano and Livio De LucaThe French collection of Plans-Reliefs, scale models of fortified towns, are an exceptional architectural heritage. Many cities, represented on these plans-reliefs, would like to expose, develop and exploit this historical knowledge. However, the fragility, the dimension of the supports and the exposure conditions make this acquisition difficult. Thus, the creation and the exploitation of a virtual model is an interesting alternative. This paper presents a new method exploiting historical documentary for the 3D semantic modelling of Plans-Reliefs as more than the half physical Plans-Reliefs are currently enclosed in containers in Paris. From 2D plans, ground outlines and facades of buildings are partially-automatically extracted to create automatically the 3D textured model of each building and ground elements (streets, rivers and courtyards). Another specificity of the method is the use of graphical schemes for the description of parametric objects.Item A Self-Training Tool for Learning 3D Geometrical Transformations(The Eurographics Association, 17-9-2009) Ribelles, Jose; Lopez, Angeles; -This paper presents a self-training tool for learning 3D geometric transformations, i.e. translation, scaling and rotation. Our aim is to provide students with a tool they can use to practise these transformations by themselves so that they can understand and learn how to use them. Its main feature is to show an animation of the geometrical transformation applied on a geometric primitive. This animation helps to comprehend the transformation more easily, as the student sees how the primitive changes its size, position and orientation. Furthermore, the teacher can also use it as a teaching aid to explain and solve exercises in class. The geometric primitives as well as the transformation parameters used in this tool are those provided by the GLUT library and the OpenGL standard. Moreover, one of the results the tool can also provide is the C source code of the scene for OpenGL programming, which is very useful if the student needs to learn to program OpenGL transformations. Finally, this tool has been made available to our students for three academic years, and they found it very useful.