Re: .mt vector question -again- clipped alpha in blur

Date : Wed, 5 Mar 2008 10:08:20 -0800
To : XSI(at)Softimage.COM
From : "Alan Fregtman" <alan.fregtman(at)gmail.com>
Subject : Re: .mt vector question -again- clipped alpha in blur
I saw this on a forum:
http://www.melon.hu/Gergo/MVector/MVector_V1.rar
http://www.melon.hu/Gergo/MVector/MVector_V1.mov

I tried and used it for a motionvector pass with refractions enabled.
(Realflow liquid going into a refractive glass. Impossible to do via
the Motion framebuffer.) I'm not sure what the difference is with the
LaMaison one; they seem very similar.

However, when refraction is out of question, I've seemed to have luck
using the Motion framebuffer saved as a 16bit RGBA SGI. Worked for me.

Cheers,

   -- Alan


On Wed, Mar 5, 2008 at 8:44 AM, takita <takita(at)earthlink.net> wrote:
> I doubt they like anything floating point or .exr  :)
>
>  -T
>
>
>
>  Rob Wuijster wrote:
>  > Not sure if our Flame Op will like that answer ;-)
>  >
>  > vr.gr.,
>  >
>  > Rob Wuijster
>  >
>  > Glassworks Amsterdam
>  > Keijzersgracht 473-479
>  > 1017 DL Amsterdam
>  > T +31 (0)20-7940996
>  > F +31 (0)20-7940997
>  > E info(at)glassworksamsterdam.nl
>  > W www.glassworksamsterdam.nl
>  >
>  >
>  >
>  >
>  > Francois Lord wrote:
>  >> Personally, I now use the motion channel (exr) and the VectorBlur
>  >> node in Nuke.
>  >> It produces better results than RSMB.
>  >>
>  >>
>  >> Rob Wuijster wrote:
>  >>> Hi all,
>  >>>
>  >>> Due to the lack of responses, I'm assuming nobody is using this "motion
>  >>> channel" output instead of the LaMaison shader? (rendering to 16bit
>  >>> RGBA
>  >>> SGI in both cases by the way.) I also noticed the "motion channel"
>  >>> render is all jagged.
>  >>>
>  >>> So, anybody used this new "motion channel" output with success and
>  >>> wants
>  >>> to elaborate on this? Tested it in Shake as well just to rule out any
>  >>> differences, this also doesn't work properly.
>  >>>
>  >>> cheers,
>  >>>
>  >>> Rob Wuijster
>  >>>
>  >>> Glassworks Amsterdam
>  >>> Keijzersgracht 473-479
>  >>> 1017 DL Amsterdam
>  >>> T +31 (0)20-7940996
>  >>> F +31 (0)20-7940997
>  >>> E info(at)glassworksamsterdam.nl
>  >>> W www.glassworksamsterdam.nl
>  >>>
>  >>>
>  >>>
>  >>>
>  >>> Rob Wuijster wrote:
>  >>> > Hi,
>  >>> >
>  >>> > I was looking for some old threads on the new .mt vector format,
>  >>> but I
>  >>> > cannot find the right info on this.
>  >>> >
>  >>> > If I add a channel for my pass, and comp the renders (beauty+mt) with
>  >>> > the RSMBVector plugin, the alpha on the blur is clipped, in
>  >>> comparison
>  >>> > to the LaMaison one.
>  >>> >
>  >>> > I can recall something about the .mt format and the inability of
>  >>> > adding an alpha channel, but cannot find the solution or more info to
>  >>> > this so far.
>  >>> >
>  >>> > Testing in the FXTree, but this should probably the same for any
>  >>> > compositing app I guess...
>  >>> >
>  >>> > Anyone on this??
>  >>> >
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