Jindrich Parus
Centre of Computer Graphics and Data Visualization, University of West Bohemia, Pilsen, Czech Republic
Anders Hast
Creative Media Lab, University of Gävle, Gävle, Sweden
Ivana Kolingerová
Centre of Computer Graphics and Data Visualization, University of West Bohemia, Pilsen, Czech Republic
Ladda ner artikel
Ingår i: SIGRAD 2006. The Annual SIGRAD Conference; Special Theme: Computer Games
Linköping Electronic Conference Proceedings 19:3, s. 12–16
Publicerad: 2006-11-22
ISBN:
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
Normals of triangular faces are essential vectors in many areas of computer graphics. In this paper we will deal with methods for normal computation of triangles under linear soft-body deformation; i.e.; the triangles which deform in time so that each vertex travels independently along its linear trajectory. Linear deformation can be found in mesh morphing; cloth simulation; physical simulation; etc. We will demonstrate five different approaches for temporal face normal interpolation; one of them is new; and we will discuss their pros and cons.
T. BARRERA; A. HAST; E. BENGTSSON 2005. Incremental Spherical Linear Interpolation SIGRAD 2004; pp. 7-10.
D. EBERLY 2004. Game Physics Morgan Kaufman; 2004
A. GLASSNER 1999. Situation Normal Andrew Glassner’s Notebook- Recreational Computer Graphics; Morgan Kaufmann Publishers; pp. 87-97.
J. GOMES 1999. Warping and Morphing of Graphical Objects Morgan Kaufman. San Francisco; California. 1999.
H. GOURAUD 1971. Continuous Shading of Curved Surfaces IEEE Transactions on Computers; Vol. 20; No. 6; 1971.
A. HAST; T. BARRERA; E. BENGTSSON 2003. Improved Shading Performance by avoiding Vector Normalization; WSCG’01; Short Paper;2001; pp. 1-8.
S. JIN 2005. A Comparison of Algorithms for Vertex Normal Computation Communications of the ACM; Vol. 18; No 6; 1975
Z. KARNI 2004. Compression of soft-body animation sequences Computers and Graphics; 28: 25-34. 2004.
J. PARUS; I. KOLINGEROV´A 2006. Normal Evaluation for Softbody Deforming Meshes SimVis2006; pp. 157-168; 2006.
B. T. PHONG 1975. Illumination for Computer Generated Pictures The Visual Computer; Springer-Verlag GmbH; Issue: Vol. 21; No 1-2; pp. 71-82; Feb. 2005.
J. SHANKEL 2000. Interpolating Quaternions Game Programming Gems. Edited byM. DeLoura. Charles RiverMedia; pp. 205-213
K. SHOEMAKE 1985. Animating rotation with quaternion curves ACM SIGGRAPH; pp. 245-254
