[vtkusers] VTK Anisotropic Texture Filtering / MipMaps / reducing texture aliasing

[Ken Martin]

Try turning on mipmaps for your texture before you render them. Support for
them was added a while back. That should help some.

  //@{
  /**
   * Turn on/off use of mipmaps when rendering.
   */
  vtkGetMacro(Mipmap, bool);
  vtkSetMacro(Mipmap, bool);
  vtkBooleanMacro(Mipmap, bool);
  //@}


On Sat, Nov 25, 2017 at 2:08 AM, Berti Krüger <berti_krueger at hotmail.com>
wrote:

> Hello Everyone!
>
> I'm currently making a visualization program where I've got a
> groundplane with a fine detailed checkerboard-like texture on it. The
> whole scene can be zoomed in and out. Since the resolution of the
> VTK-render window and the texture differ quite a bit, i get a lot of
> aliasing.
>
> In plain opengl i would use mipmaps and/or anisotropic filtering to get
> rid of it but unfortunately i haven't found anything in the vtk-texture
> class to archive this.
>
> For whole screen antialiasing i am already using the fxaa
> filter which works really nice and helps also a little bit with
> texture-aliasing but is of course not a replacement for
> resolution dependend texture-filtering.
>
> So my question is, how to reduce aliasing in VTK with fine-detailed
> textures?
>
>
> Thank you very much in advance,
>
> Berti
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-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

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