An Automated Perspective-Projected View Module for Pixel-Based CSG Renderers

نویسنده

  • Ulus Çevik
چکیده

The generation of 3D solid objects, and more generally solid geometric modelling, is very important in Computer Aided Design (CAD). This paper presents a simple but effective algorithm for automated display of perspective views of Constructive Solid Geometry (CSG) scene models. This algorithm can be implemented as a module in such a way that it is easily integrated, without any modification, to the present systems of "pixel-based Z-Buffer" CSG renderers. An implementation of the algorithm for such a system is also given in the paper.

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

A Genetic Algorithm based Optimization Method in 3D Solid Reconstruction from 2D Multi-View Engineering Drawings

There are mainly two categories for a 3D reconstruction from 2D drawings: B-Rep and CSG that both these methods have serious weaknesses despite being useful. B-Rep method which has been older and have wider function range is problematic because of high volume of calculations and vagueness in answers and CSG method has problem in terms of very limited range of volumes and drawings that it can an...

متن کامل

Authenticity Evaluation of TOEFL iBT Speaking Module from the Perspective of Applied Linguistics and General Education

For the first time, this study combined models and principles of authentic assessment from two parallel fields of applied linguistics as well as general education to investigate the authenticity of the TOEFL iBT speaking module. The study consisted of two major parts, namely task analysis and task survey. Utilizing Bachman and Palmer’s (1996) definition of authenticity, the task analysis examin...

متن کامل

Rendering Techniques for Hardware-Accelerated Image-Based CSG

Image-based CSG rendering algorithms for standard graphics hardware rely on multipass rendering that includes reading and writing large amounts of pixel data from and to the frame buffer. Since the performance of this data path has hardly improved over the last years, we describe new implementation techniques that efficiently use modern graphics hardware. 1) The render-to-texture ability is use...

متن کامل

Linear-Time CSG Rendering of Intersected Convex Objects

The Sequenced Convex Subtraction (SCS) algorithm is a hardware based multi-pass image-space algorithm for general purpose Constructive Solid Geometry (CSG) Rendering. Convex objects combined by volumetric intersection, difference and union are rendered in real-time without b-rep pre-processing. OpenGL stencil and depth testing is used to determine the visible surface for each pixel on the scree...

متن کامل

Semiautomated Building Extraction Based on CSG Model-Image Fitting

data. Approaches to model-based building extraction are Abstract mostly implemented in a semi-automatic manner, solving the Building extraction based on pre-established models has been model-image fitting problem based on some high-level inforrecognized as a promising idea for acquiring 3D data for buildmation given by the operator. The spatial data of a building ings from aerial images. This p...

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:
  • Intelligent Automation & Soft Computing

دوره 14  شماره 

صفحات  -

تاریخ انتشار 2008