Re: [script] Waiting for playback completion

["Aloys Baillet" <aloys.baillet(at)gmail.com>]

Hello Bernard,

When you read the point position array of a piece of geometry, XSI will evaluate the graph of operators and if the syflex ops are dirty (they should be if you ask for a different frame), the cache will be generated. We used that on Happy Feet to compute syflex caches on the render farm, it's a very time-saving thing to do!
In a perfect world, you should be able to call the Geometry(frameNumber), but we had some problems on the farm with this method, using a SetValue of the current frame makes it work everywhere.
Here's a snippet:

syOps = XSIFactory.CreateActiveXObject('XSI.Collection')
syOps.Items = '*.*.polymsh.syCloth'
syObjs = [op.Parent.Parent for op in syOps]

playCtl = Application.Dictionary.GetObject('PlayControl')
for frame in range(
playCtl.In.Value, playCtl.Out.Value):
    Application.SetValue('PlayControl.Current', frame)
    for syObj in syObjs:
        Application.LogMessage('Frame: %d: Updating %s'%(frame,syObj)) 
        points = syObj.ActivePrimitive.Geometry.Points.PositionArray

Cheers,

Aloys

On 11/22/06, Bernard Lebel <3dbernard@gmail.com> wrote:

Marc-AndrÃ: yes, I cleared the cache files :-)

Stefano: Yes, I'm using the command, not the PPG method.

Aloys: I'm not sure to understand. You mean that simply reading the
positionarray of the syflexed mesh(es) will launch the simulation?



Thanks
Bernard




On 11/21/06, Stefano Jannuzzo <stefanojannuzzo@tiscali.it> wrote:
> Be sure to use Application.Refresh, since a plain Refresh will just update
> the ppg.
> Not sure about syflex, but this surely works with our operators.
>
> function LQ_Manager_Play_OnClicked()
> {
>     var i;
>     var inF = GetValue("PlayControl.In ");
>     var outF = GetValue("PlayControl.Out");
>     SetValue("PlayControl.Current", inF, null);
>     Application.Refresh();
>     for (i=inF; i<outF; i++)
>     {
>         NextFrame();
>         Application.Refresh();
>     }
> }
>
>
> ----- Original Message -----
> From: "Bernard Lebel" < 3dbernard@gmail.com>
> To: <XSI@Softimage.COM>
> Sent: Monday, November 20, 2006 10:29 PM
> Subject: Re: [script] Waiting for playback completion
>
>
> > No luck either, even with Refresh after NextFrame it doesn't write the
> > Syflex file.
> >
> >
> > Bernard
> >
> >
> >
> > On 11/20/06, Luc-Eric Rousseau < lucer@softimage.com> wrote:
> >>
> >>
> >> I've never had luck with this, but it looks like with a Refresh() after
> >> your
> >> NextFrame() that you script does work.
> >>
> >> -----Original Message-----
> >> From: owner-xsi@Softimage.COM [mailto:owner-xsi@Softimage.COM ]On Behalf
> >> Of
> >> guillaume laforge
> >> Posted At: Monday, November 20, 2006 3:46 PM
> >> Posted To: xsi
> >> Conversation: [script] Waiting for playback completion
> >> Subject: Re: [script] Waiting for playback completion
> >>
> >> You can use use your own "custom PlayForwardsFromStart" command with your
> >> script in the "else" part of the function :
> >>
> >> function MyPlayForwardsFromStart()
> >> {
> >>     var FirstFrame = GetValue("PlayControl.In");
> >>     var LastFrame = GetValue("PlayControl.Out ");
> >>
> >>     var oTotalLength = LastFrame-FirstFrame;
> >>
> >>     SetValue("PlayControl.Current ", FirstFrame);
> >>     for(var i=0; i<oTotalLength;i++)
> >>     {
> >>         if(i!= LastFrame-2)
> >>         {
> >>             NextFrame();
> >>             LogMessage("Waiting for the end of the Playback...")
> >>         }
> >>         else
> >>         {
> >>             LogMessage("Run your script now !");
> >>         }
> >>     }
> >> }
> >>
> >> Should work...
> >>
> >> Cheers
> >>
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>
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-- 
Aloys Baillet - XSI Technical Director
Character Dpt - Animal Logic
--