'Bounding volumes' diaporamas de présentation

Scene Management

Scene Management. CSE 167, UCSD, Fall 2006 Steve Rotenberg. Scene Management. The scene management system is responsible for efficiently rendering complex scenes We will mainly focus on real time scene management, but many of these techniques are also useful for offline rendering

751 views • 63 slides

Collision Detection

Collision Detection. CSCE 441. What is Collision Detection?. Given two geometric objects, determine if they overlap. Typically, at least one of the objects is a set of triangles. Rays/lines Planes Polygons Frustums Spheres Curved surfaces. When Used. Often in simulations

849 views • 60 slides

Collision Detection

Collision Detection. CSCE 441. What is Collision Detection?. Given two geometric objects, determine if they overlap. Typically, at least one of the objects is a set of triangles. Rays/lines Planes Polygons Frustums Spheres Curved surfaces. When Used. Often in simulations

765 views • 60 slides

Acceleration Structures

Acceleration Structures. CS 148: Introduction to Computer Graphics and Imaging. Image: "BL Object 5" by Douglas Eichenberg (2003). Ray-Scene Intersection. Traversing all primitives in the scene for each ray is inefficient! Need auxiliary structures to accelerate this process.

955 views • 57 slides

Motion and Manipulation

Motion and Manipulation. Collision Detection. 1. Collision Detection. Sampling-based path planning: check if a simple path between two neighboring configurations is collision-free Detect collision of objects that move under the influence of physics laws are controlled by a user

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Collision Detection

604 views • 53 slides

Cloth Collisions and Contact

Cloth Collisions and Contact. Robert Bridson University of British Columbia. Introduction. Critical part of real-world clothing sims is collision Not too many simple flags / curtains / table cloths in movies!

630 views • 51 slides

Ray Tracing

Ray Tracing. Chemakura , Baba Kumar Reddy. Introduction to Ray-Tracing. Ray Tracing. global illumination. purpose of Ray Tracing?. Introduction to Ray- Tracing. Basic Setup. Introduction to Ray-tracing. Modeling Rendering. Properties of Light Rays.

765 views • 40 slides

Advanced Computer Graphics Spring 2014

552 views • 38 slides

499 views • 34 slides

Bounding Volumes

399 views • 30 slides

Collision Detection and Acceleration

Collision Detection and Acceleration. Rama Hoetzlein, 2008 Lecture Notes Cornell University. What is Collision Detection?. What if we have lots of objects?. What are some solutions?. 1. Spatial partitioning. Spatial partitioning. Cells. A. B. C. D. 1.

527 views • 29 slides

Computer Animation Algorithms and Techniques

Computer Animation Algorithms and Techniques. Collisions & Contact. Collision handling detection & response. Particle-plane collision detection Polyhedron-polyhedron collision detection overlap of Bounding volumes Vertex inside polyhedron test Concave case Convex case

381 views • 27 slides

Constructive Solid Geometry Ray Tracing CSG Models

Constructive Solid Geometry Ray Tracing CSG Models. CSG. Form object as booleans of primitive objects Primitives: sphere, cube, cylinder, cone Boolean operators: union, intersection, difference Tree structure used to manage operations Leaf nodes are primitive objects

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2 . 6. Bounding Volume Hierarchies

2 . 6. Bounding Volume Hierarchies. Overview of different forms of bounding volume hierarchy. Bounding Volume Hierarchies. Exploration of different types of bounding volume hierarchy. Bounding Volume Hierarchies.

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Ray Tracing

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2 . 3. Bounding Volumes

2 . 3. Bounding Volumes. Bounding volumes of use for collision detection. Bounding Volumes. Simple implicit/explicit bounding volumes for complex geometry. Introduction to Bounding Volumes.

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Ray Tracing 2: Acceleration

Ray Tracing 2: Acceleration. Ray Tracing Acceleration Techniques. Too Slow!. Faster intersection. Fewer rays. Generalized rays. N. 1. Uniform grids Spatial hierarchies K-D Octtree BSP Hierarchical grids Hierarchical bounding volumes (HBV). Tighter bounds Faster intersector.

396 views • 19 slides

Collision Detection and Resolution

Collision Detection and Resolution. Collision Detection Determining if and when two objects collide is not as simple as it might initially seem.

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ChainTree: A tale of two hierarchies

ChainTree: A tale of two hierarchies. Transform hierarchy: approximates kinematics of protein backbone at successive resolutions Bounding volume hierarchy: approximates geometry of protein at successive resolutions. Hierarchy of transforms. T AI. T AE. T EI. T CE. T EG. T GI. T AC.

137 views • 6 slides