We present an extension to existing techniques to provide for more accurate resolution of specular to diffuse transfer within a global illumination framework. In particular this new model is adaptive with a view to capturing high frequency phenomena such as caustic curves in sharp detail and yet allowing for low frequency detail without compromising noise levels and aliasing artefacts. A 2-pass...

In this paper, we present a framework for high quality splatting based on elliptical Gaussian kernels. To avoid aliasing artifacts, we introduce the concept of a resampling filter, combining a reconstruction kernel with a low-pass filter. Because of the similarity to Heckbert’s EWA (elliptical weighted average) filter for texture mapping, we call our technique EWA splatting. Our framework allow...

Abstract Cold spray is considered as an emerging technique for preparing wear-resistant metal matrix composite coatings on the surface of various kinds metallic materials. In this work, a viable strategy “cold spraying + hot rolling post-treatment” was successfully applied to prepare B 4 C/6061 Al coating commercially available 6061 plates. The results revealed that post-treatment in uniform di...

Conventional software model-checking involves (i) creating an abstract model of a complex application; (ii) validating this model against the application; and (iii) checking safety properties against the abstract model. To non-experts, steps (i) and (ii) are often the most daunting. Firstly how does one decide which aspects of the application to include in the abstract model? Secondly, how does...