Re: motionblur...AGAIN

[Francois Lord <xsilist(at)francoislord.com>]

The triangle 2,2 setting basically blurs the image by 2 pixels.
By setting it to 1,1 with an AA setting of 1,1, it tells mentalray to 
only use the center samples in each pixel and ignore all the edge 
samples. This results in a total waste of samples but gives you the 
results you want.

Tim Leydecker wrote:
> Thanks Francois,
>
> so, besides from the texture/image filtering, I had
> oversampled the image, likely AA 1|3, Triangle 2|2,
> Threshold 0.03-0.05 (my default preset, should check..)
>
> Cheers
>
> tim
>
> ----- Original Message ----- From: "Francois Lord" 
> <xsilist(at)francoislord.com>
> To: <XSI(at)Softimage.COM>
> Sent: Tuesday, November 06, 2007 4:06 PM
> Subject: Re: motionblur...AGAIN
>
>
> > Anti Aliasing at 1, 1.
> > Triangle filter at 1, 1.
> >
> > Tim Leydecker wrote:
> > > Can you guys recommend a setting for reprojection that
> > > results in the least amount of blur for the projected images?
> > >
> > > While camera mapping a sequence is quite easy, turning off
> > > the filtering (resulting in a washy, blurred image) seems hard?
> > >
> > > Last time I tried it (on a fast moving cell-phone spot), the
> > > results where as if I had rendered to fields, thrown away
> > > half of them, gaussian blurred by one pixel, then reprojected...
> > >
> > > The only thing left to completely kill the workaround would
> > > have been a mR [autocontrast/autolevels operation on source]
> > > optimization impossible to turn off. Even without that, subjective
> > > loss of sharpness due to sourceimage filtering seemed unacceptable.
> > >
> > > Cheers
> > >
> > > tim
> > >
> > >
> > > ----- Original Message ----- From: "Daniel Jahnel" <xsi-list(at)gmx.de>
> > > To: <XSI(at)Softimage.COM>
> > > Sent: Tuesday, November 06, 2007 3:21 PM
> > > Subject: Re: motionblur...AGAIN
> > >
> > >
> > > > everybody should be able to use it:-)
> > > >
> > > > no, didnt even bother to try out 6.02...
> > > >
> > > > Morten Bartholdy wrote:
> > > >> If it was easy, everybody could do it ;)
> > > >>
> > > >> Did it work for you in 6.02? Reason I ask is I have put off
> > > >> installing 6.5 here because I am in mid-production, and if MV are
> > > >> bust I certainly won't go there anytime soon. Oh, and it works fine
> > > >> for me in 6.02.
> > > >>
> > > >>
> > > >> Morten Bartholdy
> > > >> 3D & VFX Artist
> > > >>
> > > >>
> > > >>
> > > >> ----- Original Message ----- From: "Daniel Jahnel" <xsi-list(at)gmx.de>
> > > >> To: <xsi(at)Softimage.COM>
> > > >> Sent: Tuesday, November 06, 2007 12:27 PM
> > > >> Subject: motionblur...AGAIN
> > > >>
> > > >>
> > > >>> hi everyone...
> > > >>>
> > > >>> [Rant_start]
> > > >>> so we're giving 6.5 a chance here now...first thing i try is
> > > >>> motionblur. motionvectors dont seem to work properly, i always get
> > > >>> some offset in my motionvector pass in comparison to the beauty
> > > >>> pass, even if i set shutter to "end on frame". if i set speed to 0
> > > >>> it works but i dont get any vectors...great. how am i supposed to
> > > >>> use these settings?? its completely confusing that you have a
> > > >>> shutter speed in the renderer and some dubios shutter-open-close
> > > >>> parameters in the scene...why is motionblur always a pain in xsi??
> > > >>> for many versions its just constantly broken and unusable at times
> > > >>> and one always has to fight it....dont people use motionblur?? back
> > > >>> to reprojecting then...
> > > >>> [Rant_end]
> > > >>>
> > > >>> Daniel
> > > >>>
> > > >>> ---
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> > > >>> body:
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