Using undot twice?

[cjaar]

Avisynth:
Main movie:
crop(0,74,718,432)
Undot()
LanczosResize(704,288)
Undot()
FluxSmooth(5,5)

End Credits:
crop(0,74,718,432)
Undot()
BilinearResize(704,288)
Undot()
Temporalsoften(3,5,5,mode=2,scenechange=10)
Convolution3d("moviehq")
FluxSmooth(7,7)

hi just woundering!!!!... is the above script ok, i see undot used 2wise!!!! and whats the advantage, i used only once... any light???
i got the above script from xvid forum, i coundt continue the thread as it was closed!!!!

Avisynth 2.5x, YV12
- LumaFilter()
- Convolution3d(preset="movieHQ") # only if there's little noise,
# sometimes preset="movieLQ" is necessary - movieHQ doesn't harm
# quality at least
- UnFilter(-5,-5) # for very little oversharped movies, else more
- UnDot()
- LanczosResize()(+bilinear resize for credits range)

in the above script the order of filter is diff...resize is last and c3d in the top... does this make any diff?? speed wise. I encoded a movie of 2:20min with 624X*** 1cd with the koepi's filter settings... it took about 6:50min(divx)... is this normal
i hv 2.4p4, 512ddr(266) 120gb(7200rpm) xp-sp1.


thanks
cjaar

[trbarry]

Assuming you are downscaling, both UnDot and UnFilter will filter slightly more when used after the resize.

And, at least in the case of UnDot, it may be worth it to have it both places.

- Tom