Kim
Summary:
The paper proposes a sketching interface for 3D freeform design, called Teddy. Users draw 2D strokes to construct the silhouette for the object, and the system automatically convert them into 3D polygonal surface. The whole process for the user is very easy. According to the user study in the paper, a first-time user can create their own models fluently within 10 minutes.
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| How Teddy works |
There are kinds of operations in the system, creating a new object, painting and erasing on the surface, extrusion, cutting, smoothing and transformation. The core algorithm is to use a standard polygonal mesh to represent a 3D picture. The system is robust and efficient enough for experimental use, but it can fail ro generate unintuitive results when users draw unexpected strokes.
An interesting topic of 3D rendering and reconstruction. It is the first time for me to contact with the topic, which seems very interesting to me. According to my knowledge, 3D rendering is always complex, but in the paper the author proposes an easy and quick algorithm to realize it. The key to make an easy one is to create some reference strokes when drawing, in my opinion. Those reference strokes reduce the big burden for the system to calculate large amount of possibilities. A 2D picture always correpsonds to several 3D pictures.
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