Interpolatory Subdivision on Open Quadrilateral Nets with Arbiteary Topology

Subdivision on Quadrilateral Nets

Mathematische Methoden der Computergraphik, SS 2003

Fabian Bendix (e9825733@stud3.tuwien.ac.at)

Thomas Rongitsch (e9825730@stud3.tuwien.ac.at)

dowload source

Subdivision Class

General Documentation

Introduction

Task

Images

Introduction

Within the scope of the LU Mathematische Methoden der Computergraphik at the ICGA we implemented an application for subdividing quadrilateral nets. The algorithms we use in our application base on the paper "Interpolatory Subdivision on Open Quadrilateral Nets with Arbiteary Topology" by Leif Kobbelt.
The implemented tool provides functionality for loading 3ds files and mesh refinement with a simple "Catmull-Clark Conversion" and with "Kobbelt-Subdivision Steps".

The Task was ...

1) ... to load quad-meshes

2) ... to refine meshes with the Algorithm described by Leif Kobbelt

3) ... to add some interaction

5) ... to achieve good images

The Application ...

Interaction ...

Left Mouse-Button:	Rotate Object
Middle Mouse-Button:	Translate Object
Right Mouse-Button:	Scale Object
Weight:	Set the Weight for Kobbelt-Subdivision Step

Images

Below you can see some sample images genrated by our application. Due to demonstration issues we have tried to vary the parameters as much as possible.

A cube subdivided with different weights