31,609 research outputs found

    Dynamic Lighting for Tension in Games

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    Video and computer games are among the most complex forms of interactive media. Games simulate many elements of traditional media, such as plot, characters, sound and music, lighting and mise-en-scene. However, games are digital artifacts played through graphic interfaces and controllers. As interactive experiences, games are a host of player challenges ranging from more deliberate decision-making and problem solving strategies, to the immediate charge of reflex action. Games, thus, draw upon a unique mix of player resources, contributing to what Lindley refers to as the "game-play gestalt", "a particular way of thinking about the game state from the perspective of a player, together with a pattern of repetitive perceptual, cognitive, and motor operations" (Lindley, 2003)

    Intelligent Lighting for Game Environments

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    Lighting design is an important topic of game development. There are many functions that lighting assumes in game environments, including directing attention, establishing good action visibility, evoking emotions, setting atmosphere, and providing depth. Current lighting design techniques rely on static manually designed lighting, where designers set up the positions, angles, and colors for each light in a level. Game environments are dynamic and unpredictable; physical and narrative scene content, including character locations, tension, and narrative goals, change unpredictably in real time due to user interaction. Thus, current static techniques often do not adequately adapt to serve desired aesthetic and communicative functions or perceptual effects. Recently, Doom 3 incorporated dynamic real-time lighting and demonstrated many advantages of using real-time dynamic lighting in games, including heightening the emotional engagement and enhancing the overall interactive experience. However, the technique is scripted and tightly coupled to game content. In this article, we present ELE (Expressive Lighting Engine), an intelligent lighting system that automatically sets and adjusts scene lighting in real time to achieve aesthetic and communicative functions, including evoking emotions, directing visual focus, and providing visibility and depth. ELE operates as a separate system that interacts with game/graphics engines through a standard interface. In this article, we will discuss ELE and its interface with Unreal Tournament 2003. We will also present results showing ELE in action. These results show: the utility of real-time adaptive lighting in providing visual focus, setting atmosphere, evoking emotions, and establishing visibility during interaction in interactive environments; and acceleration in the development process due to the introduction of an automatic system for lighting that can be overridden by designers at a high level, thus eliminating the time-consuming process of setting individual light parameters for each level and scene

    Critters in the Classroom: A 3D Computer-Game-Like Tool for Teaching Programming to Computer Animation Students

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    The brewing crisis threatening computer science education is a well documented fact. To counter this and to increase enrolment and retention in computer science related degrees, it has been suggested to make programming "more fun" and to offer "multidisciplinary and cross-disciplinary programs" [Carter 2006]. The Computer Visualisation and Animation undergraduate degree at the National Centre for Computer Animation (Bournemouth University) is such a programme. Computer programming forms an integral part of the curriculum of this technical arts degree, and as educators we constantly face the challenge of having to encourage our students to engage with the subject. We intend to address this with our C-Sheep system, a reimagination of the "Karel the Robot" teaching tool [Pattis 1981], using modern 3D computer game graphics that today's students are familiar with. This provides a game-like setting for writing computer programs, using a task-specific set of instructions which allow users to take control of virtual entities acting within a micro world, effectively providing a graphical representation of the algorithms used. Whereas two decades ago, students would be intrigued by a 2D top-down representation of the micro world, the lack of the visual gimmickry found in modern computer games for representing the virtual world now makes it extremely difficult to maintain the interest of students from today's "Plug&Play generation". It is therefore especially important to aim for a 3D game-like representation which is "attractive and highly motivating to today's generation of media-conscious students" [Moskal et al. 2004]. Our system uses a modern, platform independent games engine, capable of presenting a visually rich virtual environment using a state of the art rendering engine of a type usually found in entertainment systems. Our aim is to entice students to spend more time programming, by providing them with an enjoyable experience. This paper provides a discussion of the 3D computer game technology employed in our system and presents examples of how this can be exploited to provide engaging exercises to create a rewarding learning experience for our students

    Projecting Tension in Virtual Environments through Lighting.

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    Interactive synthetic environments are currently used in a wide variety of applications, including video games, exposure therapy, education, and training. Their success in such domains relies on their immersive and engagement qualities. Filmmakers and theatre directors use many techniques to project tension in the hope of affecting audiences’ affective states. These techniques include narrative, sound effects, camera movements, and lighting. This paper focuses on temporal variation of lighting color and its use in evoking tension within interactive virtual worlds. Many game titles adopt some cinematic lighting effects to evoke certain moods, particularly saturated red colored lighting, flickering lights, and very dark lighting. Such effects may result in user frustration due to the lack of balance between the desire to project tension and the desire to use lighting for other goals, such as visibility and depth projection. In addition, many of the lighting effects used in game titles are very obvious and obtrusive. In this paper, the author will identify several lighting color patterns, both obtrusive and subtle, based on a qualitative study of several movies and lighting design theories. In addition to identifying these patterns, the author also presents a system that dynamically modulates the lighting within an interactive environment to project the desired tension while balancing other lighting goals, such as establishing visibility, projecting depth, and providing motivation for lighting direction. This work extends the author’s previous work on the Expressive Lighting Engine [1-3]. Results of incorporating this system within a game will be discussed

    Automating Lighting Design for Interactive Entertainment

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    Recent advances in computer graphics, particularly in real-time rendering, have resulted in major improvements in 3D graphics and rendering techniques in interactive entertainment. In this article we focus on the scenelighting process, which we define as configuring the number of lights in a scene, their properties (e.g., range and attenuation), positions, angles, and colors. Lighting design is well known among designers, directors, and visual artists for its vital role in influencing viewers\u27 perception by evoking moods, directing their gaze to important areas (i.e., providing visual focus), and conveying visual tension. It is, however, difficult to set positions, angles, or colors for lights within interactive scenes to accommodate these goals because an interactive scene?s spatial and dramatic configuration, including mood, dramatic intensity, and the relative importance of different characters, change unpredictably in real-time. There are several techniques developed by the game industry that establish spectacular real-time lighting effects within 3D interactive environments. These techniques are often time- and labor-intensive. In addition, they are not easily used to dynamically mold the visual design to convey communicative, dramatic, and aesthetic functions as addressed in creative disciplines such as art, film, and theatre. In this article we present a new real-time lighting design model based on cinematic and theatric lighting design theory. The proposed model is designed to automatically, and in realtime, adjust lighting in an interactive scene to accommodate the dramatic, aesthetic, and communicative functions described by traditional lighting design theories, while taking artistic constraints on style, visual continuity, and aesthetic function into account

    The coloured world of Alain Robbe-Grillet : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in French at Massey University

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    Some French language throughout.This thesis is the result of a close examination of the functions of colour in the works of Alain Robbe-Grillet, undertaken in the expectation that the careful study of this limited element would reveal the finer details of some of the important characteristics of his novels and films. The Nouveau Roman and the works of Robbe-Grillet originate in a desire to produce creative literary forms which are a better representation of man's situation in the modern world of disorder and uncertainty, than the narrative forms of the traditional nineteenth century novel. An integral part of this search for new forms is the deliberate designation and subversion of the traditional conventions which Robbe-Grillet wishes to expose as neither natural nor necessary. Thus many of the colour terms in his works are used in ironic games with these traditional forms. The illusion of realism is ironically subverted by colour and lighting references, which "foreground" the text as a fabrication of words, and also reveal that perception of reality is a subjective function and then of only one among many "realities" possible. His works therefore constitute their own reality, without necessary reference to any world "out there". However they are "realist" in that they are constrained by the laws of physical nature, e.g. description is elaborated only with illumination. Traditional colour symbols are degraded by colour, as is the convention of character, as Robbe-Grillet shows that situation and clothing do not necessarily define character or function. Ficticious characters are not "real" people but constructions of the text. The traditional anthropomorphic relationship between man and the world is thus destroyed. A related convention subverted is "le petit détail qui fait vrai", which false colour details show to be largely meaningless. Robbe-Grillet's other important subversive use for colour is to reveal the limitations of our linguistic structures; our ability to perceive colour is not matched by our ability to describe it. Colour thus plays a significant subversive role in Robbe-Grillet's works. However, to replace the traditional narrative forms, Robbe-Grillet uses colour constructively in several ways, it becomes dynamic rather than descriptive. Colour terms, at both the level of the signifier and signified, are manipulated in games with meaning to construct new texts. Traditional colour symbols are replaced with colours which become "symbolic" only in the context of a particular novel, as each now constitutes its own reality. Changing colours show the shifting focus of a narrative and create the personality of a character, while colour oppositions give movement and rhythm to texts. Specific colours generate texts through their metaphorical associations, and metaphor itself, after initial rejection, becomes a dynamic element. Colour produces many constructive forms to replace those of the traditional novel, to thus create a new "écriture romanesque". The obvious dual subversive-constructive function of colour indicates a constant tension within Robbe-Grillet's works, a tension which is perhaps the conflict basic to all literature. The many different functions of colour suggest that Robbe-Grillet's works contain an inherent multiplicity, functioning on several levels of meaning. And the changing functions of colour through the various works point to a continual evolution in Robbe-Grillet's creative production. Thus the Nouveau Roman of Robbe-Grillet is created through multiplicity, tension and evolution

    Playing with the dead:transmedia narratives and the Walking Dead games

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    This chapter discusses the theory and practice of transmedia narratives within the storyworld created by Robert Kirkman, Tony Moore and Charlie Adlard’s comics series The Walking Dead. It examines key aspects from the comics series and AMC’s adaptive television franchise to consider how both have been utilized and adapted for games. Particular focus will be paid to Telltale Games’ The Walking Dead, Gamagio’s The Walking Dead Assault and Terminal Reality’s The Walking Dead: Survival Instinct. The chapter explains the core concepts of transmedia narratives as they relate to The Walking Dead, places the games in the context of both the comics and television franchise, examines the significance of commercial and grassroot extensions and considers the role gaming and interactive narratives have within rich storyworlds. In examining The Walking Dead as a transmedia property, the authors demonstrate how vast narratives are adopted, modified and transformed in contemporary popular culture

    A User-Centric Adaptive Story Architecture – Borrowing from Acting Theories.

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    Interactive virtual environments are becoming increasingly popular for their utility in education, virtual training, and entertainment. These applications often rely on a scenario that is revealed to the user as he/she interacts with synthetic objects and characters that inhabit virtual worlds. Current interactive narrative architectures used in the interactive entertainment industry often use decision trees, which are hard to author and modify. Some interactive entertainment productions are starting to use more generative techniques, such as plan-based or goal-based narrative. In this paper, I present an interactive narrative architecture that extends current research in interactive narrative by integrating a user modeling and user behavior analysis technique, which I argue facilities a more engaging and fulfilling experience. I have implemented the architecture within an interactive story called Mirage. The architecture resulted from an iterative design and development process involving a team that included film and theatre professionals. During this design and development process, I have experimented and evaluated different narrative techniques, which resulted in the proposed architecture

    Desktop 3-D Interactive Drama – Applying Design Principles from the Performance Arts.

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    Increasing emotional engagement in 3-D interactive environments is a hard, but important problem. It is important for its potential utility in increasing motivation, involvement, and engagement. These constructs are not only useful for entertainment applications, but also impact training and edutainment applications due to the impact of emotions on learning (Ulate, 2002; Wolfe, 2001). Many researchers have explored several techniques, including enhancing the story content to stimulate emotional engagement, developing new algorithms for dynamically creating stunning visual effects, and enhancing 3-D sound. Theatre and film have integrated many techniques that increase engagement, attention, and emotional involvement. In this paper, I describe a set of new design techniques integrated in an architecture that uses theatric and cinematic theories, specifically acting and screenwriting methods, to stimulate and improve emotional engagement in 3-D interactive narratives. In this paper, I discuss two research directions: (1) defining an interaction model for 3-D interactive narrative based on screenwriting theories, and (2) developing an actor-based agent architecture to simulate believable actions within an interactive narrative. The resulting architecture was implemented and tested within Mirage, an interactive story based on the Greek Tragedy Electra. Based on the critiques from several participants, I deduce that the resulting architecture presents significantly encouraging design techniques that can potentially increase emotional involvement and dramatic content of an interactive desktop 3D VR experience. The system and approach presented in this paper demonstrates an important new direction that adds to the set of techniques currently used and expand the design methodologies to include methods from disciplines, such as performance arts, theatre, and film

    Videogames as digital audiovisual performance

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    Video games are an ideal medium for creating a live-cinema experience because of their potential for cinematic narrative and open structure. "Performing digital media' as opposed to 'performing with digital media' or using digital media in performance, means to play the media like a musical instrument as much as possible. This is to be able to control and finely nuance the audiovisual and kinetic data stream through live manipulation and interaction on stage. This is, in a sense, to grant the performance an immediacy that belies remediation. This paper looks at recent instances in which the media itself is being performed and a similar audiovisual contract to that of cinema is being entered to by an audience. Thus, the performance or live event itself becomes a product of media technologies yet is indistinctly unified with them
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