[vtkusers] Can volume rendering be true color?

[Vidyadhar N Kudalkar]

Hi,
I have not used such (four component) volumes but documentation indicates that vtkFixedPointVolumeRayCastMapper can handle such volumes. May be you can try that.
HTH
Vidyadhar
  ----- Original Message ----- 
  From: bluefishjj 
  To: vtkusers at vtk.org 
  Sent: Wednesday, September 17, 2008 2:26 PM
  Subject: [vtkusers] Can volume rendering be true color?


  Hi all,

  Currently, I see only volume rendering with pseudo color mapping, the opacity and the color are set according to the scalar values

  Now I have a series of true color images, which are taken for an object at different focus positions, read into vtkJPEGReader, and each point in the data has 3 scalar 

  components (vtkJPEGReader::GetOutput()->GetNumberOfScalarComponents() == 3). I wonder whether there is a method to set only the opacity

  of the points in the data and perform the volume rendering to obtain a true color volume rendering objects.


  Thanks in advance!






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