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This web page contains additional material accompanying the IEEE Visualization 2003 paper "A Texture-Based Framework for Spacetime-Coherent Visualization of Time-Dependent Vector Fields" by Daniel Weiskopf, Gordon Erlebacher, and Thomas Ertl.

Videos and Images

UFAC applied to a time-dependent shock data set. UFAC is compared to LEA and LIC used for the same flow field.

Visualization of an oscillating electric dipole, guided by the DLIC approach.

Discussion of temporal correlation and quality for LEA-guided visualization techniques. In addition, a comparision of UFAC is included.

Source Code for Pixel Shader Programs

Our implementation of the texture-based framework for spacetime-coherent visualization of time-dependent vector fields exploits the functionality and speed of graphics hardware by making extensive use of fragment programs. The implementation is based on C++ and DirectX 9. The fragment programs are formulated as assembler-like pixel shader programs. GPU programming is strictly separated from CPU programming by using effect files (fx files). The framework consists of two major steps, for which the corresponding effect files are included: