The decomposition of the region into four(4) can be resprensented as a ... Computer-aided design. Computer graphics. Databases. Geographic Information Systems ...
Quadtrees, Octrees and their Applications in Digital Image Processing Extracting compact objects Three sets of information are represented in the pyramid structure 1.
GUN. GUY_BAD. Octrees (HS) ... It appears that most games don't bother, the trade-off favors pre-processed ... Environments of video game are vast and tend to ...
Generally, cut up space with planes that separate regions ... Octrees (Quadtrees): Axis aligned, regularly spaced planes cut space into cubes (squares) ...
Use a tree structure to create a hierarchy of bounding cubes. You will get fewer voxels ... But the cell-skipping algorithm is NOT obvious (no matter what Geoff says) ...
The next shows some examples of quadric surfaces. Notes: Quadric surfaces are defined by quadratic equations in two-dimensional space. For example, ...
Title: Mod lisation de l clairage Author: ache Last modified by: ache Created Date: 11/26/2001 12:50:42 PM Document presentation format: Pr sentation l' cran
Data Structures for Orthogonal Range Queries A New Data Structure and Comparison to Previous Work. Application to Contact Detection in Solid Mechanics.
where a circle centered on the origin forms a sphere, otherwise it forms a torus ... Torus. Disk. Building Realistic... Objects using solid modeling. CS447 ...
Title: 3D Polyhedral Morphing Author: glab Last modified by: dm Created Date: 3/12/1998 6:53:32 PM Document presentation format: On-screen Show Company
Introdu o Computa o Gr fica Modelagem Claudio Esperan a Paulo Roma Cavalcanti Hist rico Modelagem por arames (wireframes). Representa os objetos por ...
Linear Octree. Ref: Tu and O'Hallaron 2004. Simple and Efficient Traversal Methods ... Represent an octree as a collection of lear nodes comprising it ...
Department of Computer Graphics. and Image Processing, FMPI, Comenius University, Bratislava ... Solidity enclose a positive and finite amount of space ...
Hard rock. Node Distribution. Partitioned Unstructured Mesh. element. nodes ... Auto navigation New algorithm for constructing octree automatically. ...
Some data is more naturally modeled as a volume, not a surface ... closeup of a splat. 15. Computer Graphics 15-462. Other Techniques. Shear-Warp (Lacroute and Levoy) ...
Spotlight. Spotlight in same. position as. previous. point light. Cone angle ... Spotlight - Soft Shadows. Softer shadow. obtained by having. a gradual drop-off ...
Each point in space generates a field of force, which drops off as a function of ... 'popping' between levels can be misleading. What else? Complex primitives! ...
Adaptively Sampled Distance Fields: A General Representation of Shape for Computer Graphics Sarah F. Frisken, Ronald N. Perry, Alyn P. Rockwood, and Thouis R. Jones
Linear quadtree how it works ... Auto navigation how it works : octants not yet processed (in memory) ... Local balancing how it works. Operational steps ...
CSG is a way to make complex solids from simple primitives and operations. Slide 5 ... Purcell, Ray Tracing on Programmable Graphics Hardware. Carr, The Ray Engine ...
if 4 supporting vertices touch the sphere. Test also: degenerate case of 2 or 3 vertices ... 6-dop. Fitting OBBs statistically. Sample the convex hull of the geometry ...
Title: Multiple View Geometry in Computer Vision Author: pollefey Last modified by: Marc Pollefeys Created Date: 1/7/2003 2:47:06 PM Document presentation format
For each facet, we choose one side of its plane to be the 'outside' ... be used many times, then it may be worth a large amount of preprocessing time to ...
Frustum Culling ... Hierarchical Frustum Culling can be used fairly easily ... Frustum culling would simply select all nodes it intersected and send them to ...
Any single representation is called a ... Polygonalise/Tessellate Surfaces ... curved surface is polygonised or tessellated into a collection of flat surfaces ...
Isosurface Extraction and Spatial Filtering Using Persistent ... Piece-wise linear approximation (triangulation) of the isosurface patches in each active cell. ...
Mesh characteristics can be easy to generate from scanned data. Stockman CSE/MSU Fall 2005 ... Side view classes of Ford Taurus (Chen and Stockman) ...
Understanding the in-situ conditions of the rover is necessary for planning ... First used Marching Triangles algorithm to utilize the actual point set ...
Some books on linear algebra Linear Algebra, Serge Lang, 2004 Finite Dimensional Vector Spaces, Paul R. Halmos, 1947 Matrix Computation, Gene H. Golub, Charles F. Van ...
Announcements Project 3 out today (help session at end of class) Multiview stereo Readings (Optional) S. M. Seitz and C. R. Dyer, Photorealistic Scene Reconstruction ...
Associate Professor of CS and ECE. Carnegie Mellon Quake Group. www.cs.cmu.edu/~quake. Joint work with (alphabetical order): Jacobo Bielak (CMU CEE), Leonardo Ramirez ...
Construire les boites englobantes, Construire une hi rarchie de boites englobantes, En ... Hi rarchie de boites englobantes. iMAGIS-GRAVIR / IMAG. Grille uniforme ...
Particularly poor if the object is right at the switching distance may flicker badly ... Leave the popping but try to avoid flicker: Textbook Ch 4.9 ...