shading in VolRender

Dr. Jasjit Suri jsuri at enya.picker.com
Fri Oct 1 11:38:41 EDT 1999


Lisa Sobierajski Avila wrote:

> Hello Jasjit,
>
> You can adjust the Ambient, Diffuse, Specular, and Specular Power
> parameters of the VolumeProperty (the same way you control shading on a
> vtkProperty).
>
> Lisa
>
> At 08:50 AM 10/1/99 -0400, Dr. Jasjit Suri wrote:
> >Hello...
> >
> >STEP 1:
> >I create the VolumeProperty of my MR head data
> >by giving 4 inputs:
> >
> >Opacity
> >Color
> >Interpolation Type
> >Shading
> >
> >STEP 2:
> >I create the VolumeMapper by giving 2 inputs:
> >CompositeFunction and
> >Reader
> >
> >STEP 3:
> >I create the Volume by inputing STEP1+STEP2
> >
> >Finally i display it.
> >
> >Is there a way to control the shading/lighting of the
> >volume rendering ?
> >
> >One way is to change the R,G,B color map
> >by changing the color transfer function matrix..
> >But this is not a very efficient way...
> >Another way might be to re-classify my voxels
> >which is load on both memory, speed and perhaps
> >the quality...
> >
> >I hope somebody must have encountered this...
> >
> >What do you say on this ?
> >
> >Thanks very much...
> >
> >..jas..
> >
> >
> >
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Thanks very much Lisa...

..jas..



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