Visualization of Time-Varying Curvilinear Grids Using a 3D Warp Texture

نویسندگان

  • Yuan Chen
  • Jonathan Cohen
  • Subodh Kumar
چکیده

We present a novel scheme to interactively visualize time-varying scalar fields defined on a curvilinear grid. We create a 3D warp texture that maps points in R into the grid coordinate system. At rendering time, the warping function is reconstructed at each fragment using tri-linear interpolation, and provides the 3D texture coordinates required to look up a scalar field value stored in a separate scalar texture. In essence, this approach reduces the problem of rendering a curvilinear grid to the problem of rendering a regular grid with one additional texture

برای دانلود 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

Hardware-Accelerated Visualization of Curvilinear Vector Fields

We present a novel method for hardwareaccelerated texture advection of 3D velocity fields defined on curvilinear grids. For uniform rectilinear grids, texture advection can be efficiently performed within the rasterization unit by existing approaches. In a pre-processing step, the vector field is transformed from the curvilinear grid (P-Space) to a uniform rectilinear grid (C-Space). Hardware a...

متن کامل

A survey on visualization of vector elds by texture-based methods

Running Title: A survey on texture-based visualization methods. ABSTRACT Visualization of vector data produced from application areas such as computational uid dynamics (CFD), environmental sciences , and material engineering is a challenging task. Traditional visualization approaches, such as vector plot, particle tracing, stream surfaces, volume rendering, and so on, often provide a rather co...

متن کامل

Hardware-Accelerated Visualization of Time-Varying 2D and 3D Vector Fields by Texture Advection via Programmable Per-Pixel Operations

We present hardware-accelerated texture advection techniques to visualize the motion of particles in steady or time-varying vector fields given on Cartesian grids. We propose an implementation of 2D texture advection which exploits advanced and programmable texture fetch and per-pixel blending operations on an nVidia GeForce 3. For 3D vector field visualization, we present an algorithm for SGI’...

متن کامل

An adaptive framework for visualizing unstructured grids with time-varying scalar fields

Interactive visualization of time-varying volume data is essential for many scientific simulations. This is a challenging problem since this data is often large, can be organized in different formats (regular or irregular grids), with variable instances of time (from hundreds to thousands) and variable domain fields. It is common to consider subsets of this problem, such as time-varying scalar ...

متن کامل

Techniques for 3 D Scalar and Vector Field Visualization with Error Evaluation

Computational advances over the past few decades have enabled scientists to create ever larger and more complex scientific data sets, which have become increasingly difficult to understand, analyze, compare and communicate. Scientific visualization has become an important tool for presenting the data in graphic form in order to convey insight and understanding of the data. A variety of technolo...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005