[vtkusers] Texture Mapping Image Quality

[Patrick Lowry]

Hi David:

Thanks for the quick reply.

I tried your recommended setting and it didn't change the quality.

Do image characteristics affect how they render?

Patrick

At 08:36 AM 8/30/2004, you wrote:
>Hi Patrick,
>
>Some graphics cards default to 16-bit textures, be sure to force
>VTK to use 32-bit textures:
>
>atext SetQualityTo32Bit
>
>  - David
>
>
>On Mon, 30 Aug 2004, Patrick Lowry wrote:
>
> > To All:
> >
> > The texture mapping capabilities of VTK are amazing but I noticed image
> > quality loss from the original TIFF.  Texture mapping done by a commercial
> > program I have does not suffer the same quality loss.  The essence of the
> > image part of the TCL script are shown below.  Any ideas on preventing
> > image quality loss?
> >
> > Thanks in advance.
> >
> > Patrick Lowry
> >
> > .
> > .
> > .
> > vtkTIFFReader readTIFF
> >    readTIFF SetFileName "data/test1comp.TIF"
> >    readTIFF Update
> > vtkTexture atext
> >    atext SetInput [readTIFF GetOutput]
> >    atext InterpolateOn
> > .
> > .
> > .
> > vtkTextureMapToPlane test
> >    test SetInput [normals GetOutput]
> >    test SetOrigin $xmin $ymin 0.0
> >    test SetPoint1 $xmax $ymin 0.0
> >    test SetPoint2 $xmin $ymax 0.0
> >
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