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Three dimensional (3D) laser scanning is an important documentation technique for cultural heritage. This technology has been\udadopted from the engineering and aeronautical industry and is an invaluable tool for the documentation of objects within museum\udcollections (La Pensée, 2008). The datasets created via close range laser scanning are extremely accurate and the created 3D dataset\udallows for a more detailed analysis in comparison to other documentation technologies such as photography. The dataset can be\udused for a range of different applications including: documentation; archiving; surface monitoring; replication; gallery interactives;\udeducational sessions; conservation and visualization. However, the novel nature of a 3D dataset is presenting a rather unique\udchallenge with respect to its sharing and dissemination. This is in part due to the need for specialised 3D software and a supported\udgraphics card to display high resolution 3D models. This can be detrimental to one of the main goals of cultural institutions, which is\udto share knowledge and enable activities such as research, education and entertainment. This has limited the presentation of 3D\udmodels of cultural heritage objects to mainly either images or videos. Yet with recent developments in computer graphics, increased\udinternet speed and emerging technologies such as Adobe's Stage 3D (Adobe, 2013) and WebGL (Khronos, 2013), it is now possible\udto share a dataset directly within a webpage. This allows website visitors to interact with the 3D dataset allowing them to explore\udevery angle of the object, gaining an insight into its shape and nature. This can be very important considering that it is difficult to\udoffer the same level of understanding of the object through the use of traditional mediums such as photographs and videos. Yet this\udpresents a range of problems: this is a very novel experience and very few people have engaged with 3D objects outside of 3D\udsoftware packages or games.  \udThis paper presents results of research that aims to provide a methodology for museums and cultural institutions for prototyping a\ud3D viewer within a webpage, thereby not only allowing institutions to promote their collections via the internet but also providing a\udtool for users to engage in a meaningful way with cultural heritage datasets. The design process encompasses evaluation as the\udcentral part of the design methodology; focusing on how slight changes to navigation, object engagement and aesthetic appearance\udcan influence the user's experience. The prototype used in this paper, was created using WebGL with the Three.Js (Three.JS, 2013)\udlibrary and datasets were loaded as the OpenCTM (Geelnard, 2010) file format. The overall design is centred on creating an easy-tolearn\udinterface allowing non-skilled users to interact with the datasets, and also providing tools allowing skilled users to discover\udmore about the cultural heritage object. User testing was carried out, allowing users to interact with 3D datasets within the\udinteractive viewer. The results are analysed and the insights learned are discussed in relation to an interface designed to interact with\ud3D content. The results will lead to the design of interfaces for interacting with 3D objects, which allow for both skilled and non\udskilled users to engage with 3D cultural heritage objects in a meaningful way

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

USER–APPROPRIATE VIEWER FOR HIGH RESOLUTION INTERACTIVE ENGAGEMENT WITH 3D DIGITAL CULTURAL ARTEFACTS