GPU-based four-dimensional general-relativistic ray tracing

Abstract This paper presents a new general-relativistic ray tracer that enables image synthesis on an interactive basis by exploiting the performance of graphics processing units (GPUs). The application is capable of visualizing the distortion of the stellar background as well as trajectories of moving astronomical objects orbiting a compact mass. Its source code includes metric definitions for the Schwarzschild and Kerr spacetimes that can be easily extended to other metric definitions, relying on it... Title of program: GpuRay4D Catalogue Id: AEMV_v1_0 Nature of problem Ray tracing in four-dimensional Lorentzian spacetimes. Versions of this program held in the CPC repository in Mendeley Data AEMV_v1_0; GpuRay4D; 10.1016/j.cpc.2012.04.030 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)