[vtkusers] Disable texture filtering in renderer?

[Bruno da Silva de Oliveira]

Hi,

Have you tried vtkTexture::InterpolateOff()? According to the 
documentation, it disables texture linear interpolation.

HTH,


Ken Rockot wrote:

>Hi,
>
>I'm applying a single 2D texture to an ImagePlaneWidget, and I'm
>wondering if VTK provides any generic way to turn off texture
>filtering (specifically magnification) in the renderer.  For example,
>when using OpenGL one may use the glTexParameter call to set
>TEXTURE_MAG_FILTER to GL_NEAREST, so that the texture mapper selects
>and renders the nearest texel during mapping, rather than
>interpolating between texel values.  It seems that VTK's default
>behavior is to apply some linear interpolation when a texture is
>magnified.  I'm hoping there is some renderer-independent interface
>for changing this behavior.
>
>Thanks,
>Ken
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-- 
Bruno da Silva de Oliveira
bruno at esss.com.br
ESSS - Engineering Simulation and Scientific Software
http://www.esss.com.br