Bi-Layer textures: a Model for Synthesis and Deformation of Composite Textures

Bi-Layer textures: a Model for Synthesis and Deformation of Composite Textures

REVERSE LOOP SUBDIVISION FOR GEOMETRY AND TEXTURES

Reverse subdivision aims at constructing a coarser representation of an object given by a fine polygon mesh. In this paper, we first derive a mask for reverse Loop subdivision that can be applied to both regular and extraordinary vertices. The mask is parameterized, and thus can also be used in reversing variants of Loop subdivision, such as those proposed by Warren and Litke. We apply this mas...

Deformation banding and its influence on deformation textures formation

It is shown by a crystallographic etching technique that deformation banding is an important deformation mode in copper. In a cold rolled coarse grain copper, deformation banding forms in a three dimensional manner dividing grains into a large number of bands of different orientations. The influence of this important, but long ignored deformation mode, is studied by incorporating it into the Ta...

Analyzing the layout of composite textures

The synthesis of many textures can be simplified if they are first decomposed into simpler subtextures. Such bootstrap procedure allows to first consider a ‘label texture’, that captures the layout of the subtextures, after which the subtextures can be filled in. A companion paper focuses on this latter aspect. This paper describes an approach to arrive at the label texture. Pairwise pixel simi...

Histogram Model for 3D Textures

Image texture can arise not only from surface albedo variations (2D texture) but also from surface height variations (3D texture). Since the appearance of 3D texture depends on the illumination and viewing direction in a complicated manner, such image texture can be called a bidirectional texture function. A fundamental representation of image texture is the histogram of pixel intensities. Sinc...