Geometrically-Based Potential Energy for Simulating Deformable Objects (2008)
Jin Huang, Xiaohan Shi, Xinguo Liu, Kun Zhou, Baining Guo, Hujun Bao
Abstract This paper presents a fast and stable technique for simulating deformable objects. Unlike in previous physically-based methods, our potential energy of deformation is purely...
Precomputed Radiance Transfer Field for Rendering Interreflections in Dynamic Scenes (2008)
Minghao Pan, Rui Wang, Xinguo Liu, Qunsheng Peng, Hujun Bao
In this paper, we introduce a new representation – radiance transfer fields (RTF) – for rendering interreflections in dynamic scenes under low frequency illumination. The RTF describes the...
Abstract Subspace Gradient Domain Mesh Deformation (2008)
Jin Huang, Xiaohan Shi, Xinguo Liu, Kun Zhou, Li-yi Wei, Shang-hua Teng, ...
In this paper we present a general framework for performing constrained mesh deformation tasks with gradient domain techniques. We present a gradient domain technique that works well with a wide...
Constrained fairing for meshes (2008)
Xinguo Liu, Hujun Bao, Phengann Heng, Tientsin Wong, Qunsheng Peng
In this paper, we present a novel fairing algorithm for the removal of noise from uniform triangular meshes without shrinkage and serious distortion. The key feature of this algorithm is to keep all...
The Visual Computer manuscript No. (will be inserted by the editor) (2008)
Rui Wang, Kun Zhou, John Snyder, Xinguo Liu, Hujun Bao, Qunsheng Peng, ...
Abstract We approximate a solid object represented as a triangle mesh by a bounding set of spheres having minimal summed volume outside the object. We show how outside volume for a single sphere can...
All-Frequency Precomputed Radiance Transfer for Glossy Objects (2008)
H. W. Jensen, A. Keller (editors, Xinguo Liu, Peter-pike Sloan, Heung-yeung Shum, John Snyder
We introduce a method based on precomputed radiance transfer (PRT) that allows interactive rendering of glossy surfaces and includes shadowing effects from dynamic, “all-frequency ” lighting....
Caustic spot light for rendering caustics (2008)
Liu, Xinguo, Dong, Zhao, Bao, Hujun, Peng, Qunsheng
It is difficult to render caustic patterns at interactive frame rates. This paper introduces new rendering techniques that relax current constraints, allowing scenes with moving, non-rigid scene...
Visual Comput (2006) 22: 612–621 DOI 10.1007/s00371-006-0052-0 ORIGINAL ARTICLE (2006)
Rui Wang, Kun Zhou, John Snyder, Xinguo Liu, Hujun Bao, Qunsheng Peng, ...
Object approximation using sets of simple primitives plays an important role in many time-critical applications in computer graphics, such as collision, hit, and proximity detection, view-frustum and...
Jin Huang, Hongxin Zhang, Xiaohan Shi, Xinguo Liu, Hujun Bao
This paper presents a novel interactive mesh deformation method that can achieve various dynamic material effects, including elastic membrane and cloth effects. In our framework, a mesh is encoded by...
Realtime soft shadows in dynamic scenes using spherical harmonic exponentiation (2006)
Zhong Ren, Rui Wang, John Snyder, Kun Zhou, Xinguo Liu, Bo Sun, ...
Previous methods for soft shadows numerically integrate over many light directions at each receiver point, testing blocker visibility in each direction. We introduce a method for real-time soft...
Synthesis and Rendering of Bidirectional Texture Functions on Arbitrary Surfaces (2004)
Xinguo Liu, Yaohua Hu, Jingdan Zhang, Xin Tong, Baining Guo, Heung-yeung Shum, ...
Abstract—The bidirectional texture function (BTF) is a 6D function that describes the appearance of a real-world surface as a function of lighting and viewing directions. The BTF can model the...
Directional histogram model for three-dimensional shape similarity (2003)
Xinguo Liu, Robin Sun, Sing Bing
In this paper, we propose a novel shape representation we call Directional Histogram Model (DHM). It captures the shape variation of an object and is invariant to scaling and rigid transforms. The...
A Novel Volume Constrained Smoothing Method for Meshes (2003)
Xinguo Liu Micrpvp, Xinguo Liu, Hujun Bao, Heung-yeung Shum, Qunsheng Peng
this paper weprP ose a novel volume-constrDr smoothing method for trzPQ7Dy7 meshes, whichprpQU2 es exactly the mesh volume dureD the smoothing pr cess, so as toprU ent the mesh frh shrvz2PGD In this...
Bi-Scale Radiance Transfer (2003)
Peter-pike Sloan, Xinguo Liu, Heung-yeung Shum, John Snyder
Radiance transfer represents how generic source lighting is shadowed and scattered by an object to produce view-dependent appearance. We generalize by rendering transfer at two scales. A macro-scale...
A novel volume constrained smoothing method for meshes (2002)
Xinguo Liu, Hujun Bao, Heung-Yeung Shum, Qunsheng Peng
In general, mesh smoothing is performed by minimizing the discrete energy function for the surface. One of the major problems in mesh smoothing is to prevent the mesh from shrinking. In this paper,...
Xinguo Liu, Hujun Bao, Heung-yeung Shum, Qunsheng Peng
In general, mesh smoothing is performed by minimizing the discrete energy function for the surface. One of the major problems in mesh smoothing is to prevent the mesh from shrinking. In this paper,...