[vtkusers] Using a Texture with Volume Rendering

[Lisa Avila]

Hi David,

This is an old method of the ray caster that was removed a while ago - 
thanks for pointing out the issue in the User's Guide, we will fix this.

This method allowed you to associate an RGB volume with the scalars stored 
in the input to the mapper. This can be instead accomplished by using the 
vtkFixedPointVolumeRayCastMapper or the vtkVolumeTextureMapper3D with 4 
component input (RGBS - S is the scalar value that is passed through the 
opacity transfer function to derive alpha)

There is no way to map a 2D texture onto a volume in VTK.

Lisa


At 02:45 PM 8/12/2005, David Christen wrote:
>I've seen the function "vtkVolumeMapper::SetRGBTextureInput(vtkImageData*)"
>in the VTK User's Guide (VTK 4.2)
>
>I haven't found this function anymore since VTK 4.0 Is there a
>replacementfor it? I'd like to map a 2D texture onto a volume.
>
>I'm using a nightly build of june 2005.
>
>Thank you for the help.
>
>David Christen
>
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