Ray-Tracing.

Ray-tracing and Interferometry in Schwarzschild Geometry

Here, we investigate the possible optical anisotropy of vacuum due to gravitational field. In doing this, we provide sufficient evidence from direct coordinate integration of the null-geodesic equations obtained from the Lagrangian method, as well as ray-tracing equations obtained from the Plebanski’s equivalent medium theory. All calculations are done for the Schwarzschild geometry, which resu...

Ray Tracing Height Fields

We present a novel surface reconstruction algorithm which can directly reconstruct surfaces with different levels of smoothness in one framework from height fields using 3D discrete grid ray tracing. Our algorithm exploits the 2.5D nature of the elevation data and the regularity of the rectangular grid from which the height field surface is sampled. Based on this reconstruction method, we also ...

Backward Ray Tracing

Ray tracing has become a very popular method for image synthesis due to its un paralleled exibility and its ability the generate images of high quality and realism Simulation of e ects such as re ection and refraction have been the hallmarks of ray tracing since its introduction With the advent of stochastic ray tracing the range of e ects expanded to include motion blur soft shadows depth of e...

Realtime Ray Tracing

Realtime ray tracing produces high quality images at interactive frame rates. While the realtime rendering domain is still dominated by raster graphics, realtime ray tracing recently has become much more powerful. This paper addresses the essence of realtime ray tracing: the various acceleration techniques which yield interactive performance, how coherence between rays can be exploited and effe...

Realistic ray tracing