bad motion blur 2004-02-11 - By Morten Bartholdy
Back
Since the problem exists only at specific angles, if you need higher shutter
close than that, you could simply key a slightly different angle on the
offending frames. I had the same, and it seems the shutter close "safe"
threshold varies, dependant on scenario.
MB
-- -- Original Message -- --
From: "Dan Yargici" <dan@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, February 11, 2004 9:09 AM
Subject: Re: bad motion blur
> > I have a ball translating and rotating...very simple. I have one or two
> > bad frames showing some strange artifacts due to motion blur.
>
> I had this also, see the pasted thread below:
>
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
-- ------
>
> 0.666 - Oooooh scary........ ;)
>
> Cheers Robert.
>
> DAN
>
> -- -- Original Message -- --
> From: "Robert Martinu" <antediluvian@(protected)>
> To: <XSI@(protected)>
> Sent: Wednesday, December 31, 2003 12:20 PM
> Subject: Re: Motion blur bug in 3.5.1.1?
>
>
> > With your code snippet set to "at shutter speed":
> > set "shutter close" to less then 2/3 and you'll get correct results.
> > (0.666 works, 0.667 doesn't)
> >
> > Robert
> >
> > -- -- Original Message -- --
> > From: "Dan Yargici" <dan@(protected)>
> > To: <XSI@(protected)>
> > Sent: Wednesday, December 31, 2003 11:01 AM
> > Subject: Re: Motion blur bug in 3.5.1.1?
> >
> >
> > > I tried that also and it didn't work for me....
> > >
> > > If you have 2 minutes can you try it with the script snippet I sent.
Just
> > for curiousity's sake.
> > >
> > > Cheers,
> > >
> > > DAN
> > >
> > >
> > > -- -- Original Message -- --
> > > From: "Adam Sale" <adamsale@(protected)>
> > > To: <XSI@(protected)>
> > > Sent: Tuesday, December 30, 2003 8:43 PM
> > > Subject: Re: Motion blur bug in 3.5.1.1?
> > >
> > >
> > > > I had the same problem.. The solution is to activate the "Evaluate
> > Motion
> > > > SRT at shutter speed" in the motion blur controls pulldown of the
> > render
> > > > options ppg. This is instead of using Evaluate Motion SRT for the
entire
> > > > frame
> > > >
> > > > Adam
> > > > -- -- Original Message -- --
> > > > From: "Dan Yargici" <dan@(protected)>
> > > > To: <XSI@(protected)>
> > > > Sent: Tuesday, December 30, 2003 5:04 AM
> > > > Subject: Re: Motion blur bug in 3.5.1.1?
> > > >
> > > >
> > > > > Wow! a reply from support and a bug number before the mail even
got to
> > the
> > > > list!
> > > > >
> > > > > 96270 XSI increasing Interpolation Steps causes render glitches
when
> > > > object at certain angles
> > > > >
> > > > > *That's* why softimage can claim the crown when it comes to
> > support.....
> > > > :)
> > > > >
> > > > > Great work support folks, bummer about the bug though........
> > > > >
> > > > > DAN
> > > > >
> > > > > -- -- Original Message -- --
> > > > > From: "Dan Yargici" <dan@(protected)>
> > > > > To: <XSI@(protected)>
> > > > > Cc: <support@(protected)>
> > > > > Sent: Tuesday, December 30, 2003 2:17 PM
> > > > > Subject: Motion blur bug in 3.5.1.1?
> > > > >
> > > > >
> > > > > > I just finished a job where I needed rotational motion blur and
much
> > to
> > > > my joy Softimage had just
> > > > > > released 3.5.1.1 - hurrah! However I found I was getting random
> > > > glitches on certain frames... :(
> > > > > > and now I'm through that nightmare I've managed to rustle up a
> > simple
> > > > setup to demonstrate:
> > > > > >
> > > > > > CreatePrim "Cube", "MeshSurface"
> > > > > > Scale , 0.127906976744186, 1, 1, siRelative, siGlobal, siObj,
siXYZ
> > > > > > MoveCtr2Vertices "cube.pnt[2,3,6,LAST]", False
> > > > > > Translate , 0, -4, 0, siRelative, siLocal, siObj, siXYZ
> > > > > > SaveKey
> > > > "cube.kine.local.rotx,cube.kine.local.roty,cube.kine.local.rotz", 0
> > > > > > Rotate "cube", 0, 0, 2880, siAbsolute, siAdd, siObj, siZ
> > > > > > SaveKey
> > > > "cube.kine.local.rotx,cube.kine.local.roty,cube.kine.local.rotz",
100
> > > > > > SetCurveType "cube.kine.local.rotz", 2
> > > > > > SetValue "ViewRenderOptions.MotionBlur", True
> > > > > > SetValue "ViewRenderOptions.MotionBlurRed", 0.05
> > > > > > SetValue "ViewRenderOptions.MotionBlurGreen", 0.05
> > > > > > SetValue "ViewRenderOptions.MotionBlurBlue", 0.05
> > > > > > SetValue "ViewRenderOptions.MotionBlurAlpha", 0.05
> > > > > > SetValue "ViewRenderOptions.ShutterClose", 1
> > > > > > SetValue "ViewRenderOptions.MotionSteps", 5
> > > > > >
> > > > > > Look at frames 9,21,34,46,59,71,84 and 96 - basically any frames
> > where
> > > > the object is close to the
> > > > > > same certain angle. It renders consistently when the steps are
set
> > back
> > > > to 1....
> > > > > >
> > > > > > Most bizarre, I think you'll agree......
> > > > > >
> > > > > > DAN
>
> ---
> Unsubscribe? Mail Majordomo@(protected) with the following text in body:
> unsubscribe xsi
>
---
Unsubscribe? Mail Majordomo@(protected) with the following text in body:
unsubscribe xsi
|
|
