Using Semi-Regular 4-8 Meshes for Subdivision Surfaces

نویسنده

  • Luiz Velho
چکیده

Semi-regular 4–8 meshes are refinable triangulated quadrangulations. They provide a powerful hierarchical structure for multiresolution applications. In this paper, we show how to decompose the DooSabin and Catmull-Clark subdivision schemes using 4–8 refinement. The proposed technique makes it possible to use these classical subdivision surfaces with semi-regular 4–8 meshes. Additional

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Semi-Regular 4-8 Refinement and Box Spline Surfaces

In this paper we introduce a new mesh refinement method for subdivision surfaces. It generates a semiregular 4-direction hierarchical structure from control meshes representing 2D manifolds of arbitrary topology. The main advantage of this structure is that it allows the extraction of conforming variable-resolution meshes based on spatially varying adaptation functions. We also present a smooth...

متن کامل

Irregular to Completely Regular Meshing in Computer Graphics

Irregular to Completely Regular Meshing in Computer Graphics This talk will provide a quick overview of meshing structures used in computer graphics. Maximizing rendering performance is a key goal, and irregular meshes provide the greatest geometric fidelity for a given mesh complexity. Level-ofdetail representations like progressive meshes allow selective refinement of such meshes even in real...

متن کامل

A New Interpolatory Subdivision for Quadrilateral Meshes

This paper presents a new interpolatory subdivision scheme for quadrilateral meshes based on a 1–4 splitting operator. The scheme generates surfaces coincident with those of the Kobbelt interpolatory subdivision scheme for regular meshes. A new group of rules are designed for computing newly inserted vertices around extraordinary vertices. As an extension of the regular masks,the new rules are ...

متن کامل

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...

متن کامل

Mesh Optimization Using Global Error with Application to Geometry Simplification

In this paper we present a linear running time optimization algorithm for meshes with subdivision connectivity, e.g. subdivision surfaces. The algorithm optimizes a model using a metric defined by the user. Two functionals are used to build the metric: a rate functional and a distortion (i.e. error) functional. The distortion functional defines the error function to minimize, whereas the rate f...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • J. Graphics, GPU, & Game Tools

دوره 5  شماره 

صفحات  -

تاریخ انتشار 2000