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> I added a wood image over a big floor mapping a texture. The code of my material
> is:
>
> material {
> texture {
> uv_mapping pigment {
> image_map {
> tiff "wood.tif"
> interpolate 2
> }
> }
> finish {
> ambient 1
> diffuse 1
> }
> }
> }
>
> Texture repeats over the floor, and the result is ok in near distances, but
> jittering appears in texture when distance increases.
>
> I tried changing interpolation value, and using 0 (no interpolation), 2 or 4
> always render the same image...
>
> What can be the cause of interpolation failing?
>
> Thanks for your help.
>
>
What you see is caused by the details of your image becoming to small,
sub pixel. In that case, anti-aliasing is often not enough.
You can hide it by using gocal blur. Use a small aperture value, less
than 1% of the camera-focal point distance. As the camera get jittered
around, it will catch and average those very small, sub pixel, details.
Alain
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