Temporal and spatial anti-aliasing for rendering reflections on water waves

Spatial and Temporal Variability of Water Quality for Karun River, in Upstream and Downstream Gotvand Dam

In this study, the spatial and temporal variability of water quality including monthly series of TDS, EC, So4, Cl, Ca and Na in common statistical period 1993-2014 was evaluated for the Karun River. This assessment is based on qualitative data stations including Susan in the upstream of Gotvand reservoir, Gotvand, Mollasani and Ahvaz in the downstream. To determine the parameters trend process,...

Planning for Protected Areas Using Spatial and Temporal Metrics

Water 1 Reflections on Water ( and “ Water ” )

In theories of word meaning and concepts, “water” has been taken as a key case of a natural kind term, and water of a natural kind. I address several questions including: What should a theory of the meaning of the word “water” look like, given observations about use of the word? Is there a category of liquids that is water, independent of the names used for the liquids? Given the considerations...

Anti-Aliasing of Reflection Effects of Water Surface

Water surface is one of the most important components for rendering landscapes. The rendered spacious water surface with periodic wavelets such as on the lakes and reservoirs is very easy to make aliasing and/or moiré in the regions far from the viewpoint. In periodic bump mapping on a plane with strong reflection, moiré pattern appears. The reflection rays on the wavelets are scattered by the ...

Non-Sampled Anti-Aliasing

In this paper we present a parallel method for high-quality edge anti-aliasing in rasterization. In contrast to traditional graphics hardware methods, which rely on massive oversampling to combat aliasing issues, we evaluate a closed-form solution of the associated prefilter convolution. This enables the use of a wide range of filter functions with arbitrary kernel sizes, as well as general sha...