[vtkusers] Rendering a binary image

[anast.jm at pg.com]

Derin,

I think you could avoid surfacing your data and render it directly using 
any of the Volume Mappers. The idea would be to invert the opacity ramp so 
black points would be opaque and white points transparent, then adjust the 
TransferFunction to color the black points to some color that would 
contrast against the background. I think this will work better if your 
points are scattered and not connected in any way. For examples of volume 
rendering see VTK/Examples/VolumeRendering/TCL or /Python.

...john





derin babacan <derinbabacan at yahoo.com>
Sent by: vtkusers-admin at vtk.org
01/07/2004 07:25 AM

 
        To:     vtkusers at vtk.org
        cc:     (bcc: John Anast-JM/PGI)
        Subject:        [vtkusers] Rendering a binary image


Hi,
 
I have a binary image of size 51x51x51 and want to render the black voxels 
in it. I tried the contour filter but all I have was some odd points in 
the render window. Is there a simple way to do the rendering? I'm very new 
in VTK and don't know how to do that.
 
Thanks in advance. 
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