J. Butterworth, A. Davidson, S. Hench, and T. Olano. 3DM: a three-dimensional modeler using a head-mounted display. ACM Symposium on Interactive 3D Graphics, 25(2):135--138, 1992.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....modeling tools, like CSG operators in order to simplify the interpretation process; however, their system is limited by a menu oriented interaction style and does not consider constructing and editing full 3D scenes. Deering [10] Sachs et al. 22] Galyean and Hughes [11] and Butterworth et al. [7] take a very different approach to constructing 3D models that requires 3D input devicesas the primary input mechanism. A variety of systems have incorporated gesture recognition into their user interfaces, including Rubine [21] who uses gesture recognition in a 2D drawing program, but we know of ....

J. Butterworth, A. Davidson, S. Hench, and T.M. Olano. 3DM: A three dimensional modeler using a head-mounted display. Computer Graphics (1992.

....modeling environments; i.e. modifications in design process are directly reflected by the appearance of corresponding objects. According to the rapidly accelerating progress of virtual reality (VR) technology, a number of researches have been made to produce a virtual workspace for 3 D design [1, 2, 3, 4]. Two handed interaction are known to enhance the human computer interaction in a virtual workspace, and it attracts many researchers. Hinckley et al. claims that two handed input not only improves the efficiency of human computer interaction, but can also help to make spatial input ....

....is described. RELATED WORKS In this section, related works are briefly reviewed. Table 1 shows the classification of a number of designing tools including VLEGO according to their characteristics. Butterworth et at. at the University of North Carolina, built an immersive style tool named 3DM [1]. The system employs the model manipulation techniques from both CAD and 2 D drawing programs like MacDraw. The 3DM uses a head mounted display so as to give the effect of being in the virtual workspace. Liang, Hattiday et at. at the University of Alberta, developed the JDCAD and the JDCAD [2] ....

Butterworth, J., Davidson, A., Hench, S. and Olano, T. M.: 3DM: A Three Dimensional Modeler Using a Head-Mounted Display, ACM SIGGRAPH: Proc. ACM Sympo. on Interactive 3D Graphics (GI '92), 135-139.

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Butterworth, J., Davidson, A., Hench, S. and Olano, T. M.: \3DM: A Three Dimensional Modeler Using a Head-Mounted Display", Proc. ACM Sympo. on Interactive 3D Graphics, pp.135-139, 1992.

....and edit 3D curves in space. A graphics display was further used to visualise the scene from a virtual camera position. 3DM, a system built by Butterworth, Davidson, Hench and Olano, at the University of North Carolina uses a head mounted display to place the designer in the modelling environment [4]. The input device consisted of a Polhemus 3 space Isotrak mounted in a hollowed out billiard ball having two buttons on it. This hand held tracker was used by the designer to select functions from a toolbox, and to create and manipulate objects in a 3D environment. Liang and Green of the ....

J. Butterworth et al.: 3DM: A three dimensional modeler using a head-mounted display. In: Proc. 1992 Symposium on Interactive 3D Graphics, Cambridge, MA, March 29-April 1 (1992), p. 135-138.

....by moving a tracked wand through space. A menu is used to select drawing operations. The distinctive feature of this system is that the geometry created during this process is saved, imported into and rendered in Maya, and then printed as a large panorama. Other related projects such as 3DM [6], HoloSketch [10] and 3Draw [21] have used a tracked wand to create free form lines or geometry. HoloSketch, for example, was able to create free form toothpaste geometry, wire frame lines, and clouds of triangle particles. CavePainting differs from these virtual reality free form modeling ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, and T. Marc Olano. 3dm: A three dimensional modeler using a head-mounted display. 1992 Symposium on Interactive 3D Graphics, 25(2):135--138, March 1992. ISBN 0-89791-467-8.

....pressing one of the wand buttons, and dragging the control point to the desired position. Clark s system required exotic hardware, so neither the system nor the interaction style were successful at the time. More recent work at the University of North Carolina and Chapel Hill resulted in 3DM [5], an immersive system in which the user manipulates a Polhemus tracker with two buttons mounted inside a billiard ball. The system was loosely based on MacDraw, where the user picks operations and geometric primitives from a rectangular 3D menu in space. The user lays out triangles by clicking a ....

J. Butterworth, A. Davidson, S. Hench, and T.M. Olano. 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. In Proceedings of 1992 Symposium on Interactive 3D Graphics, pages 135--138, Cambridge, Massachusetts, March 29 - April 1 1992. ACM SIGGRAPH.

....buttons, and dragging the control point to the desired position. Clark s system was ahead of its time, and required exotic hardware, so neither the system nor the interaction style were successful at the time. More recent work at the University of North Carolina and Chapel Hill resulted in 3DM [4], an immersive system in which the user manipulates a Polhemus tracker with two buttons mounted inside a billiard ball. The system was loosely based on MacDraw, where the user picks operations and geometric primitives from a rectangular 3D menu in space. The user lays out triangles by clicking a ....

J. Butterworth, A. Davidson, S. Hench, and T.M. Olano. 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. In Proceedings of 1992 Symposium on Interactive 3D Graphics, pages 135-- 138, Cambridge, Massachusetts, March 29 - April 1 1992. ACM SIGGRAPH.

....his view. However, not drawing the user s hands is probably a bad idea, because drawing the user s hands helps guide his actions. Virtual worlds may also contain physical constraints without a visual counterpart. A toolbox might follow the user around without being visibly attached to the user [Butterworth]. Breaking this assumption can help guide the user s navigation through the virtual world. A user flying through a 3D version of the solar system might only be able to move along paths that keep the Earth and Moon in view [Gleicher] or the user might be attached to an invisible guide by an ....

....5: Toolspaces Surrounding the User Turning to extrinsic properties, most virtual worlds keep the size of objects (and the user) constant. Some interactive worlds change the shape and detail of objects as the user gets farther away to increase the world s frame rate [Hoppe] Other systems (e.g. [Butterworth]) allow the user to change his own size. This allows the user to shrink and work with extremely small objects, or grow and quickly traverse large distances. Alternately, the user can shrink or grow the entire world. Mine shrinks the entire world when the user selects an object [Mine] to bring the ....

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Jeff Butterworth, Andrew Davidson, Stephen Hench, and T. Marc Olano. 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. Proceedings of the 1992 Symposium on Interactive 3D Graphics, pages 135-138.

....a tool metaphor (see Section 3.3) that applies equally to natural and abstract actions. On the other hand, a tool metaphor and thus all tricorder interaction is inherently indirect (see Section 3.3) 2. 4 Floating Menus Floating menus are text or icon menus displayed in the virtual world [5]. Typically, the menu free floats in space either absolutely or relative to the user s head position; only when users grab the menu can they change its position. The main disadvantage of floating menus in immersive VR is their foreign look and feel. Furthermore, the added third dimension seems ....

....purpose through 3D graphical design as well as button labels. However, to maintain the tactile feedback, all designs must conform to the base shape of the actual input device. This conformity and the resulting tactile feedback distinguishes the tricorder from common VR practice. Systems such as [5] give the user a collection of tools, but, since the tools shapesand designs vary considerably, they provide no continuity and only take minimum advantage of the tactile feedback of the used input device. On the other hand, the device per task strategy (see Section 2.2) while providing the same ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, and T. Marc Olano. 3DM: A three dimensional modeler using a head-mounted display. Computer Graphics (1992 Symposium on Interactive 3D Graphics), 25(2):135--138, March 1992.

....used to specify a coordinate system with gross orientation, while the user s preferred hand can be used for fine grain positioning relative to that coordinate system. This work is also three dimensional but non immersive and directly manipulates an object at 1:1 scale in a fishtank paradigm. 3DM [2] was an immersive three dimensional drawing package, but provided only one point of view at a time and required the user to change scale or fly explicitly to manipulate objects which were currently out of arm s reach. Butterworth states that users sometimes found the scaling disorienting. ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, Marc Olano. 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. In Proceedings of Symposium on Interactive 3D Graphics, pages 135138, 1992.

....Python, all that remains is a tool for creating graphical objects to populate our virtual environments. Eventually, we may want to build geometry from inside the virtual environment, but that will probably not happen as a practical matter for some time. Although one such system has been attempted [1], established CAD tools using mice and keyboards are still more effective. Ironically, some computer graphics researchers are not even using CAD tools to build their graphical objects; at the recent ACM Symposium on Interactive 3D Graphics, many researchers said they created their geometry by ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, and T. Marc Olano, 3DM: A Three Dimensional Modeler Using a Head-Mounted Display, Proceedings of the 1992 ACM Symposium on Interactive 3D Graphics, March 1992. (also published as a special issue of Computer Graphics), pages 135-138.

....Logitech Flymouse) to a visual model of that input device. An immersive display relays the visual feedback to the user. The virtual device moves in the virtual world like the real device in the real world, since the input device s translations and rotations are tracked. In contrast to other work [2], our virtual device always maintains its resemblance and its one to one mapping to the real input device. Thus, it presents the user with a single multipurpose tool (like the Star Trek tricorder) This uniformity results in several advantages described below. TACTILE FEEDBACK Because the user ....

....[3] THE TOOL METAPHOR Glove interfaces are popular in VR because they mimic direct human object interaction in the real world. Humans, however, typically work with tools. Accordingly, a tool metaphor, while less direct, is equally valid. Instead of hiding a tool s inherent indirectness [2], we emphasize it via the uniform presentation of the tricorder. The user thus perceives the tricorder as a distinct object a multipurpose tool. A tool metaphor may also be preferable because a tool s shape and labels indicate its use. With traditional glove interfaces, the user must either ....

Butterworth, J., Davidson, A., Hench, S., and Olano, T.M. 3DM: A three dimensional modeler using a headmounted display. Computer Graphics (1992 Symposium on Interactive 3D Graphics),25(2):135--138,March 1992.

....gives the designer more control over the one or two aspects of the shape that are modified in these tasks. There is a temptation to produce geometrical modelers that are restricted to 3D interaction and display techniques, and a number of well known research prototypes have used this approach [1, 5]. In light of the above observations, this approach seems to be as bad as restricting the geometrical modeler to 1D and 2D operations. A more profitable approach is to integrate 3D operations with the existing 1D and 2D operations that are used in existing geometrical modelers. This paper ....

J. Butterworth, A. Davidson, S. Hench and T. Alano, 3DM: A Three Dimensional Modeler Using a Head-Mounted Display, Proc. 1992 Symposium on Interactive 3D Graphics, 1992, 135-138.

....a straightforward interpretation of device data, such as using a Polhemus for a head tracker or a DataGlove for simple gestural recognition of commands such as select, translate and rotate. Some virtual reality systems make use of menus floating in 3 space with 3D icons instead of 2D pixmap icons [3]. Besides the additional options for its position, however, such a menu provides no more expressive power than its 2D equivalent. There are many reasons for the underutilization of 3D. First, almost all interaction techniques must be created from scratch, since essentially no toolkits of 3D ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, and T. Marc Olano. 3DM: A three dimensional modeler using a head-mounted display. In Proceedings of the 1992 Symposium on Interactive 3D Graphics, 1992.

....a coordinate system with gross orientation, while the user s preferred hand can be used for fine grain positioning relative to that coordinate system. This work is also three dimensional but non immersive and directly manipulates an object at one to one scale in a fishtank VR paradigm. 3DM [3] was an immersive three dimensional drawing package, but provided only one point of view at a time and required the user to change scale or fly explicitly to manipulate objects which were currently out of arm s reach. Butterworth states that users sometimes found the scaling disorienting. ....

Jeff Butterworth, Andrew Davidson, Stephen Hench, Marc Olano, 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. Proceedings 1992 Symposium on Interactive 3D Graphics, pp. 135-138.

....desired, and the jitter of the hand tracking. In addition, they had difficulty in perceiving stereo cues in the image and suffered from disorientation. Some of these problems could have been solved by more powerful navigation techniques through the data, such as flying and grabbing the space [6]. The disorientation may have been due to the lack of perceptual cues and the difficulty of maneuvering through the environment. The subjects also complained repeatedly that their arms weren t long enough; they would have preferred to be able to work with the widgets from a distance in order to ....

J. Butterworth, A. Davidson, S. Hench, and T. M. Olano. 3DM: A three dimensional modeler using a headmounted display. Computer Graphics (1992 Symposium on Interactive 3D Graphics), 25(2):135--138, March 1992.

....manipulation and effect and the great distance between the mental image users have and edited models are the major drawbacks of this solution. On the other side, full 3D interfaces are more often unsuited for industrial applications. For example, the menu system is sometimes replaced by 3D menus [5] floating in the virtual environment without providing more power than its 2D equivalent. Moreover, it takes much longer to activate a 3D button through a 3D sensor than to activate its 2D equivalent with a conventional mouse. These are the reasons why we chose to create a fully open software ....

J. Butterworth, A. Davidson, S. Hench, T.M. Olano, 3DM: A three dimensional modeler using a head-mounted display, in: Proceedings of the 1992 Symposium on Interactive 3D Graphics, (ACM Press, 1992) 135-138 .

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J. Butterworth, A. Davidson, S. Hench, and T. Olano. 3DM: a three-dimensional modeler using a head-mounted display. ACM Symposium on Interactive 3D Graphics, 25(2):135--138, 1992.

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Butterworth, J., Davidson, A., Hench, S. and Olano, T.M. 3DM: A Three Dimensional Modeler Using a Head-Mounted Display. Computer Graphics. Proceedings 1992 Symposium on Interactive 3D Graphics, 25 (2). 135-138, 1992.

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J. Butterworth, A. Davidson, S. Hench, and T.M. Olano. 3DM: A threedimensional modeler using a head-mounted display. In ACM Computer Graphics: Proceedings of 1992.

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Butterworth, J., Davidson, A., Hench, S., and Olano, T. M. 3DM: A Three Dimensional Modeler Using a Head Mounted Display. In Symposium on Interactive 3D Graphics, pp 135-138, Cambridge, Ma, Mar 1992.

No context found.

J. Butterworth, A. Davidson, S. Hench, and T. Olano. 3DM: a three-dimensional modeler using a head-mounted display. ACM Symposium on Interactive 3D Graphics, 25(2):135--138, 1992.

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J. Butterworth, A, Davidson, & Hench, and T.M. Olano. 3DM: A three dimensional modeler using a head-mounted display. Proc. ACM Syrup. on interne- .live 3D Graphics, pp, 135-139 (1992).

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J. Butterworth, A. Davidson, S. Hench, and T. M. Olano. 3DM: A three dimensional modeler using a head-mounted display. Computer Graphics, 25(2):135--138, Mar. 1992.

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