New CAD technologies among Siggraph 2014 technical papers presentations

A new push-pull rapid modeling architecture highlights the session on Interactive Modeling.

Computer graphics conference Siggraph started as a venue for academic researchers to share papers. In recent years Siggraph research presentations have veered strongly toward the interests of the entertainment industry. This year’s Technical Papers track at Siggraph is true to form, but that doesn’t mean research on CAD-related technologies has ended. 

PushPull++ is new technology for rapid modeling and adjustment of arbitrary meshes. (Source: Siggraph)
PushPull++ is new technology for rapid modeling and adjustment of arbitrary meshes. (Source: Siggraph)

Three papers on CAD-related modeling technology are on the agenda at Siggraph 2014, August 10-14 at the Vancouver Convention Centre. The session is titled Interactive Modeling, scheduled for Wednesday Aug. 13 at 3:45pm in East Building Ballroom B/C.

Papers scheduled for the Interactive Modeling session: 


Official description: Introducing the novel 3D modeling tool PushPull++, which enables rapid modeling and adjustment of arbitrary meshes with slanted surfaces. PushPull++ reduces the required clicks for common modeling tasks up to an order of magnitude compared to leading commercial tools.

Authors: Markus Lipp, Pascal Müller, Esri; Peter Wonka, King Abdullah University of Science and Technology.

Flow-Complex-Based Shape Reconstruction From 3D Curve Sketches

Official description: Introducing an algorithm for shape reconstruction from a sparse collection of 3D curves, based on the flow complex. The algorithm produces intersection-free 3D-triangulated shapes that interpolate input curves.

Authors: Bardia Sadri, Side Effects Software; Karan Singh, University Of Toronto.

True2Form: 3D Curve Networks From 2D Sketches via Selective Regularization

Official description: True2Form is a sketch-based modeling system that reconstructs 3D curves from single-view design sketches. The method infers 3D form from drawings using a novel mathematical framework of insights derived from perception and design literature. Results are demonstrated on numerous inputs and validated via a user-study.

Authors: Baoxuan Xu, William Chang, and Alla Sheffer, The University of British Columbia; Karan Singh, University of Toronto; Adrien Bousseau, INRIA Sophia Antipolis; James McCrae, University of Toronto.

Interactive Shape Modeling Using a Skeleton-Mesh Co-Representation

Official description: A polar-annular mesh (PAM) is a polygonal mesh with a structural constraint that imbues a PAM with both a parts segmentation and a skeleton. In the proposed multi-touch shape-modeling system this co-representation makes coarse changes efficient as well as interoperable with surface sculpting and refinement.

Authors: Jakob Andreas Bærentzen, Danmarks Tekniske Universitet; Rinat Abdrashitov and Karan Singh, University of Toronto.

Vector Graphics Complexes

Official description: Introducing the vector graphics complex, a simple data structure that supports non-manifold topological modeling for vector-graphics illustrations. The representation faithfully captures the intended semantics of a wide variety of illustrations and is a proper superset of scalable vector graphics and planar map representations.

Authors: Boris Dalstein and Michiel van de Panne, The University of British Columbia; Remi Ronfard, INRIA Rhones-Alpes.