At Mälardalen University in Sweden, researchers have now found a solution to a problem that often arises when new computer games are constructed, namely how you can efficiently make sure that the animated figures don't run right through each other.
Researcher Thomas Larsson is presenting a new model that enables complex figures to collide with each other in a credible way - preferably with sound effects, deformations, and other consequences, just as in reality.
In his dissertation he presents faster methods for discovering collisions in interactive simulations with computer graphics. The methods function both with rigid bodies and various types of deformable bodies. Besides computer games, simulations in robotics, virtual surgery, and visualization are suitable applications for the methods.
"Today regular computers can draw realistic images of complex 3D environments in the blink of an eye. This is thoroughly exploited in modern computer games, for example. The images are therefore better and better in quality, so people even use terms like photographic realism. These images are generated by a powerful graphics board in the computer, which draws millions of tiny surfaces, usually triangles, in a few milliseconds."
"But it's not enough simply to draw the images. To animate or simulate objects that move or fly around on the screen, the objects need to be able to react to collisions. In many cases the collision calculations, just like the image generation itself, have to be done in a few milliseconds, otherwise the interactivity and the experience are ruined."
All this is self-evident in the real world where objects follow the rules of physics governing movement and collisions. But in a computer simulation objects go right through each other as if they had never collided, unless special measures are taken. These measures require methods that use calculations to discover that objects are actually colliding with each other and then take suitable measures. In some cases it is sufficient to have the objects change direction by bouncing off each other. In other cases they may need to be dented (deformed), break into pieces, or even explode. Future versions of "Super Mario" will require superfast collision calculations in order to stimulate and visualize characters' movements and interaction with their surroundings in a realistic manner.
Contact information for Thomas Larsson phone +46-21 10 15 14 or email:firstname.lastname@example.org
Pressofficer Peter Mannerfelt: +46-705 353 432 or email@example.com
Thomas Larsson will publicly defend his dissertation Adaptive Bounding Volume Hierarchies for Efficient Collision Queries March 5.
Thomas Larsson is an assistant professor of computer science at Mälardalen University, where one of his duties is to teach on the Computer Science Program Specializing in Game Development.
World's thinnest hologram paves path to new 3-D world
18.05.2017 | RMIT University
Internet of things made simple: One sensor package does work of many
11.05.2017 | Carnegie Mellon University
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
23.05.2017 | Event News
22.05.2017 | Event News
17.05.2017 | Event News
23.05.2017 | Physics and Astronomy
23.05.2017 | Life Sciences
23.05.2017 | Medical Engineering