Attenuation coefficients obtained from seismic data may provide sensitive attributes for reservoir characterization and increase the robustness of AVO (amplitude variation with offset) analysis. Here, we present an algorithm for ray tracing in attenuative anisotropic media based on the methodology of C̆ervený and Ps̆enc̆ik. Both kinematic and dynamic ray tracing are carried out in an elastic refer...

Interactive ray tracing has seen enormous progress in recent years. However, advanced rendering techniques requiring many million rays per second are still not feasible at interactive speed, and are only possible by means of highly parallel ray tracing. When using compute clusters, good load balancing is crucial in order to fully exploit the available computational power, and to not suffer from...

We present a practical and efficient algorithm for interactively ray tracing arbitrary implicit surfaces. We use interval arithmetic both for reliable numerical computation and guaranteed detection of topological features. In conjunction with ray tracing, this allows for rendering literally any implicit surface simply from its definition. Interactive ray tracing facilitates flexible shading and...

Ray tracing algorithms, that can simulate multipath radio propagation in presence of geometric obstacles such as buildings, objects or vehicles, are becoming quite popular, due to the increasing availability digital environment databases and high-performance computation platforms, multicore computers cloud computing services. When vehicles moving, which is case industrial vehicular environments...

This paper presents the design and implementation of a GPU-based ray tracing system for dynamic scenes consisting of a set of individual, non-deformable objects. The triangles of each object are organized in a separate Kd-tree. A bounding volume hierarchy (BVH) is built on top of these Kd-trees. The BVH is updated and uploaded into GPU memory on a frame-by-frame basis, whereas the Kd-trees are ...

Acceleration structures used for ray tracing have been designed and optimized for efficient traversal of static scenes. As it becomes feasible to do interactive ray tracing of moving objects, new requirements are posed upon the acceleration structures. Dynamic environments require rapid updates to the acceleration structures. In this paper we propose spatial subdivisions which allow insertion a...

The subject of this paper is the application of the Gaussian beam method to the propagation of surface waves on a laterally heterogeneous, spherical earth taking fully into account the curvature of the Earth’s surface. This is achieved by constructing a ray centred coordinate system on general curved surfaces. The application of this method to a spherical shell leads to a ray centred coordinate...

To obtain good performance on the GPU hardware, it is necessary to design algorithms to manage data, access memory under GPU memory hierarchy, and schedule more efficient threads. In this paper, we propose an efficient data management and task management designed for GPU based ray tracing. Due to the dynamic and uncertainty in ray tracing, we design data-management layer and task-management lay...

Christian Lauterbach: Interactive Ray Tracing of Massive and Deformable Models. (Under the direction of Dinesh Manocha.) Ray tracing is a fundamental algorithm used for many applications such as computer graphics, geometric simulation, collision detection and line-of-sight computation. Even though the performance of ray tracing algorithms scales with the model complexity, the high memory requir...