Name
Abstract | ||
|---|---|---|
For the rendering of vector and tensor fields, several texture- based volumetric rendering methods were presented in recent years. While they have indisputable merits, the classical vertex-based ren- dering of integral curves has the advantage of better zooming capa- bilities as it is not bound to a fixed resolution. It has been shown that lighting can improve spatial perception of lines significantly, especially if lines appear in bundles. Although OpenGL does not directly support lighting of lines, fast rendering of illuminated lines can be achieved by using basic texture mapping. This existing tech- nique is based on a maximum principle which gives a good ap- proximation of specular reflection. Diffuse reflection however is essentially limited to bidirectional lights at infinity. We show how the realism can be further increased by improving diffuse reflec- tion. We present simplified expressions for the Phong/Blinn light- ing of infinitesimally thin cylindrical tubes. Based on these, we propose a fast rendering technique with diffuse and specular reflec- tion for orthographic and perspective views and for multiple local and infinite lights. The method requires commonly available pro- grammable vertex and fragment shaders and only two-dimensional lookup textures. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1109/VISUAL.2005.1532772 | IEEE Visualization 2003 |
Keywords | Field | DocType |
data visualisation,image resolution,image texture,rendering (computer graphics),graphics hardware,specular reflection approximation,texture mapping,texture-based volumetric rendering method,vector field visualization,vertex-based rendering,Field lines,graphics hardware,illumination,texture mapping,vector field visualization | Texture mapping,Computer vision,Volume rendering,Computer graphics (images),3D rendering,Computer science,Specular reflection,Diffuse reflection,Artificial intelligence,Rendering (computer graphics),Shader,OpenGL | Conference |
ISBN | Citations | PageRank |
0-7803-9462-3 | 30 | 1.40 |
References | Authors | |
15 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ovidio Mallo | 1 | 30 | 1.40 |
| Ronald Peikert | 2 | 695 | 35.93 |
| Christian Sigg | 3 | 291 | 13.08 |
| Filip Sadlo | 4 | 457 | 33.92 |