Dynamic Occlusion Culling

... Pre-computed occlusion information has long been the method of choice for speeding up rendering and so their generation is wellunderstood [Laine 2005] [Koltun et al. 2000]. S. Nirenstein and E. Blake proposed an interesting way to speed-up this expensive operation using hardware-acceleration [Nirens ...

... Pre-computed occlusion information has long been the method of choice for speeding up rendering and so their generation is wellunderstood [Laine 2005] [Koltun et al. 2000]. S. Nirenstein and E. Blake proposed an interesting way to speed-up this expensive operation using hardware-acceleration [Nirens ...

Computer Graphics (CS 543) Lecture 3 (Part 1): Building 3D Models

... Example: glutWireCone generates sequence of vertices, and faces defining cone and connectivity vertices, and faces defining cone glutWireCone ...

... Example: glutWireCone generates sequence of vertices, and faces defining cone and connectivity vertices, and faces defining cone glutWireCone ...

Image-Space Decomposition Algorithms for Sort

... determine the contribution of the data on a pixel. The composition operation is associative, but not commutative; therefore these color and opacity values should be composited in visibility order. The determination of the correct composition order is known as the view sort problem. The DVR algorithm ...

... determine the contribution of the data on a pixel. The composition operation is associative, but not commutative; therefore these color and opacity values should be composited in visibility order. The determination of the correct composition order is known as the view sort problem. The DVR algorithm ...

Four-Face Cluster Simplification

... In this paper we introduce a new algorithm for simplification of polygonal meshes. It generates a variable resolution structure called hierarchical 4-K mesh. This structure is a powerful representation for non-uniform level of detail that, among other things, allows simple and efficient extraction o ...

... In this paper we introduce a new algorithm for simplification of polygonal meshes. It generates a variable resolution structure called hierarchical 4-K mesh. This structure is a powerful representation for non-uniform level of detail that, among other things, allows simple and efficient extraction o ...

Ambient Occlusion Fields - Department of Computer Science

... overhead. For this reason, ambient occlusion is gaining interest also in the real-time graphics community [Pharr 2004]. However, the inter-object occlusion has to be re-evaluated whenever spatial relationships of the objects change. This is in most cases affordable in offline rendering, but not in r ...

... overhead. For this reason, ambient occlusion is gaining interest also in the real-time graphics community [Pharr 2004]. However, the inter-object occlusion has to be re-evaluated whenever spatial relationships of the objects change. This is in most cases affordable in offline rendering, but not in r ...

Lecture notes

... • Sometimes the description is an end in itself – eg: Computer aided design (CAD), Computer Aided Manufacturing (CAM) – The model is an exact description ...

... • Sometimes the description is an end in itself – eg: Computer aided design (CAD), Computer Aided Manufacturing (CAM) – The model is an exact description ...

Introduction to OpenGL - Department of Computing

... geometric description of an object that is eventually drawn on the screen. • "Viewing," how three-dimensional models are transformed before being drawn onto a twodimensional screen. You can control these transformations to show a particular view of a model. • "Color," how to specify the colour and s ...

... geometric description of an object that is eventually drawn on the screen. • "Viewing," how three-dimensional models are transformed before being drawn onto a twodimensional screen. You can control these transformations to show a particular view of a model. • "Color," how to specify the colour and s ...

Modeling and Rendering of Nonlinear Iterated Function

... often tied to 3D models with surface normals. Fractal objects do not have surface normals which are however required to evaluate a more complex shading model. [3] propose several strategies to simulate nonexistent surface normals of their linear fractals. As we render only 3D approximations, Wnmax(A ...

... often tied to 3D models with surface normals. Fractal objects do not have surface normals which are however required to evaluate a more complex shading model. [3] propose several strategies to simulate nonexistent surface normals of their linear fractals. As we render only 3D approximations, Wnmax(A ...

Implicit Surfaces Seminar, Spring 2012

... the range of models that can be defined with a skeletal implicit surface system [22, 59, 4]. Guy and Wyvill [22] introduced a method using a graph to specify blending among objects. The main idea is that objects connected in the graph are blended with each other and objects not connected are deforme ...

... the range of models that can be defined with a skeletal implicit surface system [22, 59, 4]. Guy and Wyvill [22] introduced a method using a graph to specify blending among objects. The main idea is that objects connected in the graph are blended with each other and objects not connected are deforme ...

3D MODELING OF THE HUMAN UPPER LIMB INCLUDING THE

... resource database and a set of software tools allowing the modeling of the human complex musculoskeletal system and the simulation of its dynamics, including the finite element simulation of soft tissue deformation and muscular contraction. The upper limb was chosen to start with, as one of the most ...

... resource database and a set of software tools allowing the modeling of the human complex musculoskeletal system and the simulation of its dynamics, including the finite element simulation of soft tissue deformation and muscular contraction. The upper limb was chosen to start with, as one of the most ...

A Beam Tracing Approach to Acoustic Modeling for Interactive Virtual Environments

... and mirror operations [36], possibly splitting rays as they diverge with distance [31, 42]. In this case, the beam representation is only useful for modeling the distribution of rays/energy with distance and for avoiding large tolerances in ray-receiver intersection calculations. If beams are not cl ...

... and mirror operations [36], possibly splitting rays as they diverge with distance [31, 42]. In this case, the beam representation is only useful for modeling the distribution of rays/energy with distance and for avoiding large tolerances in ray-receiver intersection calculations. If beams are not cl ...

" Outside-In Anatomy Based Character Rigging"

... Given the ellipsoidal muscles, we adapt their shape to conform to the character skin, allowing us to capture the deformation of underlying tissue. To do this, we inflate the ellipsoid toward, but not past, the skin surface, relative to the major axis. For an ellipsoid vertex p and corresponding proj ...

... Given the ellipsoidal muscles, we adapt their shape to conform to the character skin, allowing us to capture the deformation of underlying tissue. To do this, we inflate the ellipsoid toward, but not past, the skin surface, relative to the major axis. For an ellipsoid vertex p and corresponding proj ...

Generation of Cartoon 2D Cracks Based on Leaf Venation Patterns

... 1988], [Mitchell 1987], which controls the regularity of the venation patterns. The drawback is the computational cost of dartthrowing algorithm, since it consists of repeatedly generating points distributed at random, then testing each new point against all points already in the set. A point that i ...

... 1988], [Mitchell 1987], which controls the regularity of the venation patterns. The drawback is the computational cost of dartthrowing algorithm, since it consists of repeatedly generating points distributed at random, then testing each new point against all points already in the set. A point that i ...

What is Descriptive Geometry for - TU Wien

... Nevertheless, in the public meaning Descriptive Geometry has falsely become synonymic for ’manually drawing images of 3D objects’. As in the last decades manual drawing with traditional instruments has been replaced by CAD or mathematical software with graphic output, ‘people on the road’ frequently ...

... Nevertheless, in the public meaning Descriptive Geometry has falsely become synonymic for ’manually drawing images of 3D objects’. As in the last decades manual drawing with traditional instruments has been replaced by CAD or mathematical software with graphic output, ‘people on the road’ frequently ...

final_EMS2006_SemwalBryan

... interaction involves developing a model for the main stroke, and then recursively generating similar models for any branches that may occur. A number of methods have been developed in this field, but most of the research has concentrated on rendering algorithms. This thesis generates volumetric data ...

... interaction involves developing a model for the main stroke, and then recursively generating similar models for any branches that may occur. A number of methods have been developed in this field, but most of the research has concentrated on rendering algorithms. This thesis generates volumetric data ...

Sketch and Paint-based Interface for Highlight Modeling

... To define color variations and gradients, painting is the most well-suited approach. The user thus uses a set of brush and gradient tools to refine the highlight shape and to control its color behavior. Brushes allow the user to edit the highlight color while the filters let her adjust the highlight ...

... To define color variations and gradients, painting is the most well-suited approach. The user thus uses a set of brush and gradient tools to refine the highlight shape and to control its color behavior. Brushes allow the user to edit the highlight color while the filters let her adjust the highlight ...

A Generalized Light-Field API and Management System

... by the sampling directions needed, and sampling direction distribution is determined by the specific set of directions selected. Examples of these arrangements are those used in [CLF98, IPL97], where the chosen distribution of the samples follows quasi-uniform triangulations of the sphere’s surface ...

... by the sampling directions needed, and sampling direction distribution is determined by the specific set of directions selected. Examples of these arrangements are those used in [CLF98, IPL97], where the chosen distribution of the samples follows quasi-uniform triangulations of the sphere’s surface ...

unit ii – three dimensional concepts

... 22. What for Ray-casting method is used? Ray casting methods are commonly used to implement constructive solid geometry operations when objects are described with boundary representations. 23. Give the advantages of B-spline over Bezier Curve i. The degree of a B-Spline polynomial can be set indepen ...

... 22. What for Ray-casting method is used? Ray casting methods are commonly used to implement constructive solid geometry operations when objects are described with boundary representations. 23. Give the advantages of B-spline over Bezier Curve i. The degree of a B-Spline polynomial can be set indepen ...

Real Time Muscle Deformations Using Mass

... painting were used for this purposes. It is exactly the case for the representation of human appearance. With the advent of technology, still photographs and movies came, which are more like copying mechanisms limited to two dimensional reproduction. More recently, with computers, we can perform the ...

... painting were used for this purposes. It is exactly the case for the representation of human appearance. With the advent of technology, still photographs and movies came, which are more like copying mechanisms limited to two dimensional reproduction. More recently, with computers, we can perform the ...

Image-based Tree Modeling

... background. In our implementation, matting is achieved with automatic color-based segmentation and some user guidance. Standard computer vision techniques have been developed to estimate the point correspondences across the images and the camera parameters. We used the approach described in [Lhuilli ...

... background. In our implementation, matting is achieved with automatic color-based segmentation and some user guidance. Standard computer vision techniques have been developed to estimate the point correspondences across the images and the camera parameters. We used the approach described in [Lhuilli ...

Decimation of Triangle Meshes - University of Alberta Computing

... The polygon remains a popular graphics primitive for computer graphics application. Besides having a simple representation, computer rendering of polygons is widely supported by commercial graphics hardware and software. However, because the polygon is linear, often thousands or millions of primitiv ...

... The polygon remains a popular graphics primitive for computer graphics application. Besides having a simple representation, computer rendering of polygons is widely supported by commercial graphics hardware and software. However, because the polygon is linear, often thousands or millions of primitiv ...

Indirect Performance Sensing for On-Chip Self

... the most important model terms in the template without sacrificing any modeling accuracy. Other model coefficients corresponding to the unimportant terms are simply set to zero, and are ignored in the final indirect sensor model. Intuitively, the unimportant model terms have negligible contribution ...

... the most important model terms in the template without sacrificing any modeling accuracy. Other model coefficients corresponding to the unimportant terms are simply set to zero, and are ignored in the final indirect sensor model. Intuitively, the unimportant model terms have negligible contribution ...

# Solid modeling

Solid modeling (or modelling) is a consistent set of principles for mathematical and computer modeling of three-dimensional solids. Solid modeling is distinguished from related areas of geometric modeling and computer graphics by its emphasis on physical fidelity. Together, the principles of geometric and solid modeling form the foundation of computer-aided design and in general support the creation, exchange, visualization, animation, interrogation, and annotation of digital models of physical objects.