Existing bidirectional reflectance distribution function (BRDF) models are capable of capturing the distinctive highlights produced by the fibrous nature of wood. However, capturing parameter textures for even a single specimen remains a laborious process requiring specialized equipment. In this paper we take a procedural approach to generating parameters for the wood BSDF. We characterize the ...

Abstract Random vibrations occur in many engineering systems including buildings subject to earthquake excitation, vehicles traveling on a rough road and off-shore platform random waves. Analysis of for linear has been well studied. For nonlinear systems, particularly multi-degree-of-freedom however, there are still challenges analyzing the probability distribution transient responses system. M...