Collision detection - Physically based temporal coherence

In physical simulations, video games and computational geometry, collision detection includes algorithms from checking for collision, i.e. intersection, of two given solids, to calculating trajectories, impact times and impact points in a physical simulation. Collision detection - Overview. In physical simulation, we wish to conduct experiments, such as playing billiards. The physics of bouncing billiard balls are well understood, under the umbrella of rigid body motion and elastic collisions. An initial de ...

Including:

• Collision detection - Overview
• Collision detection - Collision detection in physical simulation
• Collision detection - A posteriori vs a priori
• Collision detection - n-body pruning
• Collision detection - Temporal coherence
• Collision detection - Physically based temporal coherence
• Collision detection - Pairwise pruning
• Collision detection - Exact pairwise collision detection
• Collision detection - A priori collision detection
• Collision detection - Spatial partitioning miscellanea
• Collision detection - Collision detection in video games
• Collision detection - Collision detection in computational geometry

Read more here: » Collision detection: Encyclopedia - Collision detection

Physical simulators usually function one of two ways, we shall refer to them as the a posteriori and a priori methods. In addition to the a posteriori and a priori distinction, almost all modern collision detection algorithms are broken into a hierarchy of algorithms. Collision detection - A posteriori vs a priori. In the a posteriori case, we advance the physical simulation by a small time step, then check if any objects are intersecting, or are somehow so close to each ...

See also:

Collision detection, Collision detection - Overview, Collision detection - Collision detection in physical simulation, Collision detection - A posteriori vs a priori, Collision detection - n-body pruning, Collision detection - Temporal coherence, Collision detection - Physically based temporal coherence, Collision detection - Pairwise pruning, Collision detection - Exact pairwise collision detection, Collision detection - A priori collision detection, Collision detection - Spatial partitioning miscellanea, Collision detection - Collision detection in video games, Collision detection - Collision detection in computational geometry

Read more here: » Collision detection: Encyclopedia II - Collision detection - Collision detection in physical simulation

Video games have to split their very limited computing time between several tasks. This added to the limited resources of the programmers, the less strict goals of believable (and not necessarily exact) simulation and (perhaps most importantly) the real-time requirement have combined in such a way that video games, for the most part, have used relatively primitive collision detection algorithms, alt ...

See also:

Collision detection, Collision detection - Overview, Collision detection - Collision detection in physical simulation, Collision detection - A posteriori vs a priori, Collision detection - n-body pruning, Collision detection - Temporal coherence, Collision detection - Physically based temporal coherence, Collision detection - Pairwise pruning, Collision detection - Exact pairwise collision detection, Collision detection - A priori collision detection, Collision detection - Spatial partitioning miscellanea, Collision detection - Collision detection in video games, Collision detection - Collision detection in computational geometry

Read more here: » Collision detection: Encyclopedia II - Collision detection - Collision detection in video games

In physical simulation, we wish to conduct experiments, such as playing billiards. The physics of bouncing billiard balls are well understood, under the umbrella of rigid body motion and elastic collisions. An initial description of the situation would be given, with a very precise physical description of the billiard table and balls, as well as initial positions of all the balls. Given a certain impulsion on the white ball (probably resulting from a player hitting the ball with his cue), we want to calculate the trajectories, precise motion ...

See also:

Collision detection, Collision detection - Overview, Collision detection - Collision detection in physical simulation, Collision detection - A posteriori vs a priori, Collision detection - n-body pruning, Collision detection - Temporal coherence, Collision detection - Physically based temporal coherence, Collision detection - Pairwise pruning, Collision detection - Exact pairwise collision detection, Collision detection - A priori collision detection, Collision detection - Spatial partitioning miscellanea, Collision detection - Collision detection in video games, Collision detection - Collision detection in computational geometry

Read more here: » Collision detection: Encyclopedia II - Collision detection - Overview