A method of solving the radiative transfer equation using Feynman path integrals (FPIs) is discussed. The FPI approach is a mathematical framework for computing multiple scattering in participating media. Its numerical behavior is not well known, and techniques are being developed to solve the FPI approach numerically. A missing numerical technique is detailed and used to calculate beam spread ...

This paper presents a fast parallel method to compute the solution of the radiative transport equation in inhomogeneous participating media. The efficiency of the method comes from different factors. First, we use a novel approximation scheme to find a good guess for both the direct and the scattered component. This scheme is based on the analytic solution for homogeneous media, which is modula...

Despite recent advances in Monte Carlo rendering techniques, dense, high-albedo participating media such as wax or skin still remain a difficult problem. In such media, random walks tend to become very long, but may still lead to a large contribution to the image. The Dwivedi sampling scheme, which is based on zero variance random walks, biases the sampling probability distributions to exit the...

This study was aimed to identify the body dissatisfaction among female athletes and in nonfemale athletes. This present study also examined ideals body size, and media influence towards body dissatisfaction perception among female recreational athletes and nonathletes. Participants were 40 women age ranged between 21 and 30 years: 20 recreational athletes who regularly go to the gym, do running...

Knowledge creation processes in the cultural sciences have a discursive nature. The cultural scientists participating in these discourses build a community of practice. Reifications in information systems should support four concepts: (1) Content description by metadata, (2) coverage within standards, (3) repository technologies, and (4) platform independence of applications. By the combination...

Communication technologies are widely used to manage interpersonal relationships, but little is known about which media are most useful at different stages of relationship development, and how the pattern of usage may be influenced by contextual factors or users’ gender. Drawing on theories of relationship development, this study examined usage patterns among 34 college students participating i...

The creation and rendering of realistic water scenes is one of the challenging tasks in Computer Graphics. To reproduce the illumination and colour inside water bodies an algorithm capable of dealing with media with anisotropic and multiple scattering has to be used. We have developed a simulation system based in the discrete ordinates method to solve the problem of light transport in general p...

Radiative heat transfer in three-dimensional nonhomogeneous participating medium was investigated by using REM 2 method. The anisotropic scattering phase function was dealt with the scaling technique based on delta function approximation. The three-dimensional scaled isotropic results were compared with the published anisotropic scattering computations. A good agreement between the scaled isotr...

Due to the intricate nature of the equation governing light transport in participating media, accurately and efficiently simulating radiative energy transfer remains very challenging in spite of its broad range of applications. As an alternative to traditional numerical estimation methods such as ray-marching and volume-slicing, a few analytical approaches to solving single scattering have been...