A Parametric-Space-Based Scan-Line Algorithm for Rendering Bicubic Surfaces

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Fast Algorithm for Rendering Parametric Surfaces

An algorithm for rendering shaded pictures of parametric surfaces is presented. The algorithm recursively subdivides each surface element on the basis of its screen-space curvature until it is sufficiently close to bilinear to be scan-converted by conventional polygon rendering techniques. The mathematical basis used to carry out the subdivsion yields the curvature criterion as a coefficient so...

متن کامل

Line-space Representation and Compression for Image-based Rendering

In image-based rendering applications, images of a scene are captured along a specific camera trajectory and are then used to render new views of the scene. In this paper, we first study several possible camera trajectories and analyze their pros and cons. Then we introduce the line space which is a representation of light rays and use it to analyze a number of implementation issues in image-ba...

متن کامل

Environment mapped refraction models for low cost scan-line rendering

A low cost and versatile refraction model for scan-line rendering algorithms is presented. The model is based on the theoretical optical path of a light ray through a generic lens. A Gaussian approximation is then used, together with Blinn and Newell approximation. These expressions lead to a family of approximations with a tradeoff between computational cost and optical precision. In this pape...

متن کامل

Algorithm for implicitizing rational parametric surfaces

Many current geometric modeling systems use the rational parametric form to represent surfaces. Although the parametric representation is useful for tracing, rendering and surface tting, many operations like surface intersection desire one of the surfaces to be represented implicitly. Moreover, the implicit representation can be used for testing whether a point lies on the surface boundary and ...

متن کامل

Interactive Line Art Rendering of Freeform Surfaces

In recent years, synthetically created line art renderings have reached quality levels that are aesthetically pleasing. Moreover, the sketch based approach was found to be quite capable at conveying geometrical information in an intuitive manner. While a growing interest in this type of rendering method has yielded successful and appealing results, the developed techniques were, for the most pa...

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

ژورنال

عنوان ژورنال: IEEE Computer Graphics and Applications

سال: 1987

ISSN: 0272-1716

DOI: 10.1109/mcg.1987.277066