A Sketching Interface for Modeling the Internal Structures of 3D Shapes

Owada, Shigeki; Nielsen, Frank; Nakazawa, Kimitaka; Igarashi, Takeo

doi:10.1007/3-540-37620-8_5

Cited by 27 publications

(9 citation statements)

References 12 publications

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“…A problem that appears in some of the most advanced sketching applications, like [25], is that they require a multi-modal push-button interface. Our intention is to maintain the original sketching objectives in order to keep our application as simple and natural to use as possible.…”

Section: Our User Interface Based On Two Windowsmentioning

confidence: 99%

Automatic terrain generation with a sketching tool

Puig-Centelles

Varley

Ripollés

et al. 2012

Multimed Tools Appl

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Nowadays, applications such as scientific simulations, virtual reality or computer games are increasing the detail of their environments with the aim of offering more realism. Terrain is a very important element in these outdoor scenarios. Artists are currently requiring a higher level of customization. In this sense, the objective of the work presented in this paper is to provide the final user with an easy-to-use terrain generation application. More precisely, our aim is to ease the creation of islands. We propose a sketching solution which, combined with a simple terrain algorithm, is capable of suiting the user needs. The application is composed of two windows, which offer 2D and 3D representations of the terrain respectively. These windows are sufficient for providing the user with an interactive feedback about the island that is being designed. We try to show that relatively simple algorithms can be combined to provide successful results.

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Section: Our User Interface Based On Two Windowsmentioning

confidence: 99%

Automatic terrain generation with a sketching tool

Puig-Centelles

Varley

Ripollés

et al. 2012

Multimed Tools Appl

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“…As in many other sketch-based modeling tools [3,18,20,25,28,42], the primary shape-creation operation in ShapeShop is inflation, where a closed 2D contour is then inflated into a "blobby" 3D shape. This operation can be easily accomplished using implicit sweeps with the blobby endcap style, as described in Sect.…”

Section: Blobby Inflationmentioning

confidence: 99%

ShapeShop: Free-Form 3D Design with Implicit Solid Modeling

Schmidt¹,

Wyvill²

2011

Sketch-Based Interfaces and Modeling

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Implicit modeling has been used since the early 1980s as an alternative to mainstream solid-modeling techniques. Beyond Boolean composition, implicit modeling integrates blending and deformation operators which allow complex free-form solid models to be more easily described. Recent advances have alleviated some of the major technical problems, such as visualization speed and surface control. In this chapter we describe how to combine these new techniques with a sketchbased 3D modeling interface, resulting in a powerful tool for quickly creating solid models. Our system, called ShapeShop, has been used as a testbed to investigate a range of problems, from real-time visualization [36] . Sketch-based 3D modeling is the common thread which ties all these various problems together [33,34,37,46].Much like the seminal Teddy system [18], ShapeShop is a tool for incrementally creating a 3D model using simple 2D sketches. From this starting point, many other sketch and pen-based interaction techniques have been adapted and integrated into the system. ShapeShop borrows liberally from work in sketching assistance [7,17], gestural systems [48], crossing interfaces [2], and suggestive modeling [16]. One long-term aspect of the ShapeShop project is to evaluate how these non-traditional techniques can be effectively combined within a complex interface.

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“…These techniques allow the user to create a large variety of free-form shapes [26,10,13] by using a gesture grammar which converts some drawn curves into a corresponding modeling operation: extrusion, deformation, cutting, etc.…”

Section: Previous Workmentioning

confidence: 99%

3D Sketching with Profile Curves

Granier

Schlick

2006

Smart Graphics

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Abstract. In recent years, 3D sketching has gained popularity as an efficient alternative to conventional 3D geometric modeling for rapid prototyping, as it allows the user to intuitively generate a large range of different shapes. In this paper, we present some sketching interactions for 3D modeling, based on a set of two different bidimensional sketches (profile curve and silhouette curve). By using these two sketches and combining them with a gesture grammar, a very large variety of shapes (including shapes with topological holes) can be easily produced by our interactive modeling environment.

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A Sketching Interface for Modeling the Internal Structures of 3D Shapes

Cited by 27 publications

References 12 publications

Automatic terrain generation with a sketching tool

Automatic terrain generation with a sketching tool

ShapeShop: Free-Form 3D Design with Implicit Solid Modeling

3D Sketching with Profile Curves

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