RE: Getting correct motion vectors from a RealFlow mesh

["Kim Aldis" <XSI(at)kim-aldis.co.uk>]

The bit about motion blurring it I’d go along with, but the bit about without problems I’d have issues with. We had enormous problems. They’d come over but a lot of the time they were just plain wrong.

 

From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of guillaume laforge
Sent: 01 December 2006 12:38
To: XSI(at)Softimage.COM
Subject: Re: Getting correct motion vectors from a RealFlow mesh

 

You can motion blur a realflow object without problems (in a perfect world of course).
Just turn on deform motion blur and evaluate motion blur at shutter speed.

Should work with the 'great' realflow xsi operator...

1/2


--
Guillaume Laforge
freelance TD | cg Artist
my blog ! http://vol2blog.blogspot.com/

On 12/1/06, Tim Leydecker <BauerOink(at)gmx.de> wrote:

Hi Jesper,

isn´t the realflow stuff retesselated meshes per frame,?
That would mean you can´t compute the vertextransformation
per frame into a texture but would have to resort to use
the RSMB standard version (without extra vectors as input),
on that part of the image. I find the standard version gives
great results often enough (cutting on the need to render vectors).

Cheers

tim

----- Original Message -----
From: "Jesper Kieler Petersen" < jkp(at)ioi.dk>
To: <XSI(at)Softimage.COM>
Sent: Friday, December 01, 2006 12:58 PM
Subject: Getting correct motion vectors from a RealFlow mesh


Hi,

Im trying to get correct motion vectors from a RealFlow mesh to use with
RealSmart Motion Blur.
Im using the Im2DMV_2 motion vector shader and it work like a charm with
everything but the RealFlow meshes.
The vectors are all over the place. Feels like I´ve tried everything

Does anyone know of another way of getting the vectors out of XSI.

Best regards
Jesper K. Petersen
Io Interactive A/S
Art-Department



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