gMotion: A spatio-temporal grammar for the procedural generation of motion graphics

Creating by hand compelling 2D animations that choreograph several groups of shapes requires a large number of manual edits. We present a method to procedurally generate motion graphics with timeslice grammars. Timeslice grammars are to time what split grammars are to space. We use this grammar to formally model motion graphics, manipulating them in both temporal and spatial components. We are able to combine both these aspects by representing animations as sets of affine transformations sampled uniformly in both space and time. Rules and operators in the grammar manipulate all spatio-temporal matrices as a whole, allowing us to expressively construct animation with few rules. The grammar animates shapes, which are represented as highly tessellated polygons, by applying the affine transforms to each shape vertex given the vertex position and the animation time. We introduce a small set of operators showing how we can produce 2D animations of geometric objects, by combining the expressive power of the grammar model, the composability of the operators with themselves, and the capabilities that derive from using a unified spatio-temporal representation for animation data. Throughout the paper, we show how timeslice grammars can produce a wide variety of animations that would take artists hours of tedious and time-consuming work. In particular, in cases where change of shapes is very common, our grammar can add motion detail to large collections of shapes with greater control over per-shape animations along with a compact rules structure

Achieving a designed customer experience across multiple delivery platforms: A telco perspective

'Customer experience' is a term that covers a wide range of activities that take place between suppliers and users of products and services. LaSalle and Britton define it as 'a holistic experience which involves a person - as opposed to a customer - as a whole at different levels and in every interaction between such person and a company' (2003). This research considers a key aspect of such an holistic experience: that which is embodied in the product or service under consideration. In the context of increasing mobile technology convergence, the paper considers new approaches that focus on developing the necessary underlying enablers and common interaction flows that are required to deliver a designed experience, taking into account the increasing number of mobile operating systems and service delivery platforms. Ultimately these models move towards allowing users to 'co-create their own unique experiences' (Pralahad and Ramswamy, 2004). The convergence between IT and telecommunications domains presents a unique challenge to product and service designers. Services are increasingly accessible via multiple delivery devices and delivery networks. This trend has been seen most recently in the advent of Internet based services being delivered via mobile phones where 'mobile service delivery and technologies have become the glue between previously secluded 'telecom' and "IT' domains' (Karrberg and Liebenau, 2006). At the same time network operators are trying to tighten their relationship with their customers by offering 'sticky' services aimed at raising the barriers to customer mobility. These two trends lead to a new design challenge: how to design a recognisably consistent and compelling product customer experience that applies over all delivery services, operating systems and networks. Solutions to this problem have to date been either technology led, focussing on integrated delivery platforms, or reliant on rule-based design. Crucial to this analysis is the 'role Please use this identifier to cite or link to this item

A 3D virtual environment for social telepresence

We examine OnLive Traveler as a case study. Traveler is a clientserver application allowing real-time synchronous communication between individuals over the Internet. The Traveler client interface presents the user with a shared virtual 3D world, in which participants are represented by avatars. The primary mode of communication is through multi-point, full duplex voice, managed by the server. Our design goal was to develop a virtual community system that emulates natural social paradigms, allowing the participants to sense a tele-presence, the subjective sensation that remote users are actually co-located within a virtual space. Once this level of immersive "sense of presence" and engagement is achieved, we believe an enhanced level of socialization, learning, and communication are achievable. We examine a number of very specific design and implementation decisions that were made to achieve this goal within platform constraints. We also will detail some observed results gleaned from the virtual community userbase, which has been online for several year

Image Morphing

Morphing is also used in the gaming industry to add engaging animation to video games and computer games. However, morphing techniques are not limited only to entertainment purposes. Morphing is a powerful tool that can enhance many multimedia projects such as presentations, education, electronic book illustrations, and computer-based training

Programming temporal morphing of self-actuated shells

Advances in shape-morphing materials, such as hydrogels, shape-memory polymers and light-responsive polymers have enabled prescribing self-directed deformations of initially flat geometries. However, most proposed solutions evolve towards a target geometry without considering time-dependent actuation paths. To achieve more complex geometries and avoid self-collisions, it is critical to encode a spatial and temporal shape evolution within the initially flat shell. Recent realizations of time-dependent morphing are limited to the actuation of few, discrete hinges and cannot form doubly curved surfaces. Here, we demonstrate a method for encoding temporal shape evolution in architected shells that assume complex shapes and doubly curved geometries. The shells are non-periodic tessellations of pre-stressed contractile unit cells that soften in water at rates prescribed locally by mesostructure geometry. The ensuing midplane contraction is coupled to the formation of encoded curvatures. We propose an inverse design tool based on a data-driven model for unit cells’ temporal responses

Programming temporal morphing of self-actuated shells

Advances in shape-morphing materials, such as hydrogels, shape-memory polymers and light-responsive polymers have enabled prescribing self-directed deformations of initially flat geometries. However, most proposed solutions evolve towards a target geometry without considering time-dependent actuation paths. To achieve more complex geometries and avoid self-collisions, it is critical to encode a spatial and temporal shape evolution within the initially flat shell. Recent realizations of time-dependent morphing are limited to the actuation of few, discrete hinges and cannot form doubly curved surfaces. Here, we demonstrate a method for encoding temporal shape evolution in architected shells that assume complex shapes and doubly curved geometries. The shells are non-periodic tessellations of pre-stressed contractile unit cells that soften in water at rates prescribed locally by mesostructure geometry. The ensuing midplane contraction is coupled to the formation of encoded curvatures. We propose an inverse design tool based on a data-driven model for unit cells’ temporal responses

IST Austria Thesis

Fabrication of curved shells plays an important role in modern design, industry, and science. Among their remarkable properties are, for example, aesthetics of organic shapes, ability to evenly distribute loads, or efficient flow separation. They find applications across vast length scales ranging from sky-scraper architecture to microscopic devices. But, at the same time, the design of curved shells and their manufacturing process pose a variety of challenges. In this thesis, they are addressed from several perspectives. In particular, this thesis presents approaches based on the transformation of initially flat sheets into the target curved surfaces. This involves problems of interactive design of shells with nontrivial mechanical constraints, inverse design of complex structural materials, and data-driven modeling of delicate and time-dependent physical properties. At the same time, two newly-developed self-morphing mechanisms targeting flat-to-curved transformation are presented. In architecture, doubly curved surfaces can be realized as cold bent glass panelizations. Originally flat glass panels are bent into frames and remain stressed. This is a cost-efficient fabrication approach compared to hot bending, when glass panels are shaped plastically. However such constructions are prone to breaking during bending, and it is highly nontrivial to navigate the design space, keeping the panels fabricable and aesthetically pleasing at the same time. We introduce an interactive design system for cold bent glass façades, while previously even offline optimization for such scenarios has not been sufficiently developed. Our method is based on a deep learning approach providing quick and high precision estimation of glass panel shape and stress while handling the shape multimodality. Fabrication of smaller objects of scales below 1 m, can also greatly benefit from shaping originally flat sheets. In this respect, we designed new self-morphing shell mechanisms transforming from an initial flat state to a doubly curved state with high precision and detail. Our so-called CurveUps demonstrate the encodement of the geometric information into the shell. Furthermore, we explored the frontiers of programmable materials and showed how temporal information can additionally be encoded into a flat shell. This allows prescribing deformation sequences for doubly curved surfaces and, thus, facilitates self-collision avoidance enabling complex shapes and functionalities otherwise impossible. Both of these methods include inverse design tools keeping the user in the design loop

An aesthetics of touch: investigating the language of design relating to form

How well can designers communicate qualities of touch? This paper presents evidence that they have some capability to do so, much of which appears to have been learned, but at present make limited use of such language. Interviews with graduate designer-makers suggest that they are aware of and value the importance of touch and materiality in their work, but lack a vocabulary to fully relate to their detailed explanations of other aspects such as their intent or selection of materials. We believe that more attention should be paid to the verbal dialogue that happens in the design process, particularly as other researchers show that even making-based learning also has a strong verbal element to it. However, verbal language alone does not appear to be adequate for a comprehensive language of touch. Graduate designers-makers’ descriptive practices combined non-verbal manipulation within verbal accounts. We thus argue that haptic vocabularies do not simply describe material qualities, but rather are situated competences that physically demonstrate the presence of haptic qualities. Such competencies are more important than groups of verbal vocabularies in isolation. Design support for developing and extending haptic competences must take this wide range of considerations into account to comprehensively improve designers’ capabilities

Imagining the performance zone: Overcoming ambiguity in consumer based electronic performance support systems

The locus of performance support implementation was once the domain of large corporations where its principles offered an attractive alternative to traditional methods of training within the scope of contemporary business practices. Due to economies of scale the large corporations were able to build effective performance support through the precise identification of the PERFORMANCE ZONE. This zone is created through the defining of the three attributes of performance, 1) the nature of the worker, 2) the nature of the task, and 3) the type and amount of support needed. lncreasingly the principles of performance-centred design have been adopted within diverse sectors. One of which is the embedding of performance centred design principles in consumer software where the developer doesn\u27t have the privileged access to be able to define the above attributes of performance. These consumer electronic performance support systems don\u27t share access to the attributes of performance as other systems. My thesis is that this deficit of access precludes the newer models being identified as true EPSS, and further, for these models to become true EPSS they must shift developmental focus from the problematics of defining the PERFORMANCE ZONE, to those of Imagining it

Authoring the Intimate Self: Identity, Expression and Role-playing within a Pioneering Virtual Community

We examine Traveler, a social-based 3D online virtual community with over ten years of continuous community use, as a case study. Traveler is a client-server application allowing real-time synchronous communication between individuals over the Internet. The Traveler client interface presents the user with a shared, user created, virtual 3D world, in which participants are represented by avatars. The primary mode of communication is through multi-point, full duplex voice, managed by the server. This paper reflects on the initial design goals of the developers in the mid 1990s to emulate natural social paradigms and, more recently, reports on how the online community uses distance attended multi-point voice and open-ended 3D space construction to express themselves both on a personal level and collaborative level to facilitate a tight socially based community. This paper situates the historical importance of Traveler within the framework of contemporary virtual worlds and provides insights into the ways that this software platform might influence next-generation virtual communities