Image-based flow visualization: Difference between revisions

Revision as of 03:52, 11 November 2011

Revision as of 16:03, 13 November 2011

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== Principle ==

The main idea is to create a noise texture on a regular grid and then bend this grid according to the flow (the vector field). WeThe thenbended samplegrid theis bendedthen gridsampled at the original grid ___locationlocations. The output is then an according to the flow displaced version of the noise. To use this for visualization we can for example do this for a few steps and make an animation or also inject some dye on a regular grid and see how this dye got transported away by the flow.

[[File:Image-Based Flow Visualization.svg|You can see here how the grid is warped and how the noise image is resampled]]