[vtkusers] Mipmaps, zooming ideas?

[David.Pont at ForestResearch.co.nz]

Hi Andrew, found another article, specifically addressing efficient
multi-resolution across very large changes in scale.


http://www.cs.virginia.edu/~gfx/Courses/2002/BigData/papers/Texturing/Clipmap.pdf

Dave



|---------+----------------------------->
|         |           Andrew Usher      |
|         |           <A.C.J.Usher at damtp|
|         |           .cam.ac.uk>       |
|         |           Sent by:          |
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|         |           .org              |
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|         |                             |
|         |           23/10/2003 23:37  |
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  |       To:       vtkusers at vtk.org                                                                                               |
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  |       Subject:  [vtkusers] Mipmaps, zooming ideas?                                                                             |
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Hello,

I'm currently making a visualization app where I've got some large
cosmological datasets and I'd like to use texture maps initally to
represent the data, and then zoom in to successively higher resolution
texture maps until I get to the point where I can switch to polygons
representing the data that can be picked and analysed. I guess I'm asking
if it's possible to use mipmaps with VTK or whether I need to just use
OpenGL for this? If so, would it be possible to do this in conjunction
with VTK?

Has anyone tried this with VTK? I guess its similar to the demos you see
with graphics cards when you start in space and zoom in on earth.

Thanks,

Andrew

---------------------------------------------------
Andrew Usher
Email: a.c.j.usher at damtp.cam.ac.uk
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