We present a new conservative image-based occlusion culling method to increase the speed of hardware accelerated rendering of very complex general scenes which may consist of millions of polygons without time-expensive preprocessing. The method is based on a lowresolution grid upon a conventional z-buffer or an occlusion-buffer. This grid is updated in a lazy manner which reduces the number of ...

In this paper, a multi-surface anisotropic constitutive model is proposed for clayey soils, based on bounding surface theory and classical critical state-based model. the model, in addition to volumetric hardening law, rotational rule also incorporated into formulation with non-associated flow rule. The uses plasticity produce more realistic representation of nonlinear behavior clays high overc...

Bounding volumes are used in computer graphics to approximate the actual geometric shape of an object in a scene. The main intention is to reduce the costs associated with visibility or interference tests. The bounding volumes most commonly used have been axis-aligned bounding boxes and bounding spheres. In this paper, we propose the use of discrete orientation polytopes (k-dops) as bounding vo...

Large, complex 3D scenes are best rendered in an output-sensitive way, i.e., in time largely independent of the entire scene model’s complexity. Occlusion culling is one of the key techniques for output-sensitive rendering. We generalize existing occlusion culling algorithms, intended for static scenes, to handle dynamic scenes having numerous moving objects. The data structure used by an occlu...

As a kind of partially saturated soil often containing dissolved gas with high degree saturation (S > 85%), gassy sand sediment widely exists in the marine environment all over world. Due to effect dissolution and exsolution on pore fluid compressibility, its stress–strain pressure responses are quite different from those common unsaturated soils when subjected undrained loading. Since almos...