Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design

Sheng, Yu; Yapo, Theodore C.; Young, Christopher; Cutler, Barbara

doi:10.1109/vr.2009.4811000

Cited by 9 publications

(9 citation statements)

References 30 publications

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“…This work was extended in Shader Lamps [16]. Similarly to Raskar et al [16], Sheng et al [17,18], and Yapo et al [21], our system projects information on neutrally colored physical primitives to create a detailed rendering of a simulated space. Our physical primitives and rendering options provide unique extensions to their work.…”

Section: Related Workmentioning

confidence: 97%

“…We need to preserve the temporal axis for the time-lapse daily variation animation that is an important feature to visualize the dynamic lighting over the course of a day described in Sheng et al [17,18].…”

Section: System Improvements For Effective Designmentioning

confidence: 99%

“…We have developed a Tangible User Interface for visualization of customized architectural daylighting simulations [17,18]. The user physically constructs a small scale architectural model with physical walls primitives shown in Figure 1, adding tokens to mark windows, specify surface materials, and indicate the surrounding environment (north orientation).…”

Section: Introductionmentioning

confidence: 99%

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Physical Avatars in a Projector-Camera Tangible User Interface Enhance Quantitative Simulation Analysis and Engagement

Nasman

Cutler

2013

2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops

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We present an augmented reality environment for the visualization of architectural daylighting simulations. The new visualizations focus the users' attention on the problematic aspects of a building design. Architectural design is a task particularly well suited for Tangible User Interfaces (TUIs). The user physically constructs a scale model of the building, a lighting simulation is then performed on this space, and then the simulation results are projected into the physical model by a set of calibrated projectors. A user study of an earlier version of the system revealed that users lacked accurate quantitative information about the propagation of natural light within architectural spaces and had difficulties identifying and reasoning about areas of overillumination, under-illumination, and glare. This was our motivation for two important additions to the system: physical avatar tokens within the physical scale model to specify areas of interest for glare and false color visualizations. We render viewpoints from the perspective of each avatar and indicate glare for each viewpoint. To provide users with an additional way to minimize glare and provide visual interest, we introduce new complex and interesting shading materials. These features illustrated in our tool create a more immersive and educational experience for novice and experienced designers.

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Section: Related Workmentioning

confidence: 97%

Section: System Improvements For Effective Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physical Avatars in a Projector-Camera Tangible User Interface Enhance Quantitative Simulation Analysis and Engagement

Nasman

Cutler

2013

2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops

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“…The ARmy application leverages an existing generalpurpose multi-projector SAR system [27] that facilitates a variety of tangible education and gaming applications.…”

Section: Army Implementation Detailsmentioning

confidence: 99%

ARmy: A study of multi-user interaction in spatially augmented games

Dolce

Nasman

Cutler

2012

2012 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops

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We present ARmy, a two-player military strategy game that uses spatially augmented reality to combine physical tabletop games with the virtual elements and computation characteristic of modern video games. As players move plastic miniatures within a small scale physical environment, the application moderates and augments play by maintaining a 3D representation of the scene, which it uses to validate movement paths and perform automatic line-ofsight calculations for combat. We describe the design and implementation of the ARmy gaming system. Furthermore, we conducted a user study to gauge the effectiveness, intuitiveness, and robustness of the application. We describe the process of this user study, present quantitative data of the study results, and discuss general design principles for the design and implementation of other engaging spatiallyaugmented games.

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“…We have used spatially augmented reality to build a virtual heliodon system [42], [43] that complements modern desktop architectural daylighting design software tools. The user positions a set of small-scale physical walls within the workspace to "sketch" the 3D geometry of their design.…”

Section: Overviewmentioning

confidence: 99%

A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design

Sheng

Yapo

Young

et al. 2011

IEEE Trans. Visual. Comput. Graphics

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Abstract-We present an application of interactive global illumination and spatially augmented reality to architectural daylight modeling that allows designers to explore alternative designs and new technologies for improving the sustainability of their buildings. Images of a model in the real world, captured by a camera above the scene, are processed to construct a virtual 3D model. To achieve interactive rendering rates, we use a hybrid rendering technique, leveraging radiosity to simulate the inter-reflectance between diffuse patches and shadow volumes to generate per-pixel direct illumination. The rendered images are then projected on the real model by four calibrated projectors to help users study the daylighting illumination. The virtual heliodon is a physical design environment in which multiple designers, a designer and a client, or a teacher and students can gather to experience animated visualizations of the natural illumination within a proposed design by controlling the time of day, season, and climate. Furthermore, participants may interactively redesign the geometry and materials of the space by manipulating physical design elements and see the updated lighting simulation.

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Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design

Cited by 9 publications

References 30 publications

Physical Avatars in a Projector-Camera Tangible User Interface Enhance Quantitative Simulation Analysis and Engagement

Physical Avatars in a Projector-Camera Tangible User Interface Enhance Quantitative Simulation Analysis and Engagement

ARmy: A study of multi-user interaction in spatially augmented games

A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design

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