Re: XSI/FXTree livefeed of renderpass?

["Tim Leydecker" <BauerOink(at)gmx.de>]

Hi Adam,

thanks for the step by step explanation.

I think I have a conceptual mistake in my setup wishes,
what I´d want is to simply have a texturechange trigger
the re-render of the flat diffuse pass and autoloading that
pass into the comp (containing AO+shadow+flat diffuse).

I´m not looking for realtime 3D viewport update but
comp viewer update.

To get this to work, without scripting, there´d need to
be at least an autoupdate flag to individual renderpasses
and an autoupdaterefresh to the individual passes input in
the FXtree. It boils down to two flags, as - at least for the
region tool - XSI successfully refreshes whenever a texture
is changed (by another app). You´d still have to wait for the
re-rendering of the flat pass but that´s o.k.

It would be nice to have the region tool or better any
viewport or renderpass as a node in the FXtree, especially
if you could set their output to fit a specific camera e.g the
rendersettings of a select pass.

One could also think about how to expand this to using
a imagesequence as input to a 3D cameraprojection for
painting mattepaintings but I´m not sure if this would be
an advatage over using multiple projections and baking.

Cheers


tim





----- Original Message ----- 
From: "Adam Seeley" <adam.seeley(at)clearpost.co.uk>
To: <XSI(at)Softimage.COM>
Sent: Wednesday, April 26, 2006 2:51 PM
Subject: RE: XSI/FXTree livefeed of renderpass?


> It's quite straightforward.
>
> Apply your texture to your object.
> Open the FxTree and select the texture you just applied by looking under the Clip 
> pulldown.
> You will have two linked nodes, Fromclip & ToClip. Put a node such as Colour 
> Correction between the two nodes.
>
> i.e. FromClip-->ColourCorrection-->ToClip
>
> Then you will see realtime changes in the 3D window.
>
> A.
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM]On Behalf
> Of Tim Leydecker
> Sent: 26 April 2006 13:38
> To: XSI(at)Softimage.COM
> Subject: Re: XSI/FXTree livefeed of renderpass?
>
>
> small update,
>
> there was a thread a while back called:
>
> "FXTree output to Render Tree"
>
> Showing how to alter an image in realtime using
> the FXtree and seeing updates in realtime, could
> be a way to accomplish what I´m after.
>
> Unfortunately, due to f**cking timeconstraints,
> I can´t investigate this any further and´ll probably
> just go the XSI>Combustion route (updating the
> diffusepass with a click) as my Combustion*.lic
> is on another PC anyway, at least I won´t run into
> memory issues from conflicts in having ZBrush
> (for painting), XSI and Combustion trying to grab
> all RAM available on my shoddy box...
>
> Cheers
>
> tim
>
> P.S: I guess I should get rid off that Aston/ButtonPusher
> job and learn how to successfully accumulate lifeenergy
> from having room too breathe instead. (My girlfriend nods)
>
>
>
>
> ----- Original Message ----- 
> From: "Tim Leydecker" <BauerOink(at)gmx.de>
> To: <XSI(at)Softimage.COM>
> Sent: Wednesday, April 26, 2006 12:37 PM
> Subject: Re: XSI/FXTree livefeed of renderpass?
>
>
> > Hi Adam,
> >
> > thanks for the info and query. What I hope to achieve is
> > to pipe a *not yet rendered/updating renderview* into
> > an otherwise static FX Tree composition.
> >
> > Like putting a viewer (displaying the last renderregion or
> > renderpassrender on the correct frame) in the middle of
> > a comp and using that to influence the final comp.
> >
> > If I´d have to refresh a couple of times by manually re-
> > rendering a pass (e.g sequence of frames, like a turntable),
> > reloading a pass and re-chaching the result in FXTree I´d
> > not gain much really over a solution using XSIpass(es)>AE
> > or XSIpass(es)Combustion and doing the comp there.
> >
> > Additionally, I´d not require Adv/Ess but could do (later)
> > with a Foundation license...
> >
> > Cheers
> >
> > tim
> >
> >
> > ----- Original Message ----- 
> > From: "Adam Sale" <adamsale(at)shaw.ca>
> > To: <XSI(at)Softimage.COM>
> > Sent: Wednesday, April 26, 2006 4:24 AM
> > Subject: Re: XSI/FXTree livefeed of renderpass?
> >
> >
> > > as far as I can tell from your post Tim, this is the very nature by which XSI's
> > > passes work.
> > >
> > > I wasn't sure what you meant by *realtime* though, because you would still have 
> > > to
> > > render the changes in the pass, to see the updated results in your comped FX tree
> > >
> > > Is this what you are getting at?
> > >
> > > - Building your XSI scenes w lights / textures
> > >
> > > - creating new passes with overriden partitions to split off features you wish to
> > > isolate, whether single / multiple objects
> > >
> > > - rendering all passes, importing into FX tree via: pass > get all passes
> > >
> > > - creating comp, adjustment nodes, and outputting to a : nodes > file output 
> > > node.
> > >
> > >
> > > - if you update any image node in the tree by rendering only that images pass:
> > > pass > reload all images/ paths .... whatever the command is called...
> > >
> > > Something like that?
> > >
> > > Adam
> > >
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: Tim Leydecker <BauerOink(at)gmx.de>
> > > Date: Tuesday, April 25, 2006 4:22 am
> > > Subject: XSI/FXTree livefeed of renderpass?
> > >
> > > > Hi folks,
> > > >
> > > > I´m looking for a way to feed the changes to textures/images
> > > > via a pass into a FXtree composition, e.g. update a specific
> > > > pass (by re-evaluating a specific texture/image only) and see
> > > > the composed result in *realtime* to speed up shader setup.
> > > >
> > > > http://www.hafenlola.com/downloads/Ley_buddy72.jpg
> > > >
> > > > (Showing the passes comped, wip of adding color to the
> > > > flat diffuse layer, here done in static, e.g. not directly to
> > > > texture...)
> > > > I´ve build a comp that would work in AE and Combustion
> > > > by basically splitting ambient occlusion, a simplified beauty
> > > > containing the shadows and the flat, unshaded diffusemaps.
> > > >
> > > > I´d like to update only the diffuse mapped pass, e.g. paint
> > > > textures, refresh (by saving the textureimage) and see the
> > > > resulting pass rendered using the above described comp.
> > > >
> > > > I can´t do this using AE or Combustion since they miss
> > > > a livefeed bridge to XSI (via, let´s say *.rpf or whatever).
> > > > My best bet would be that I *could* automatically feed
> > > > an updated pass into a *static* comp (containing AO/shadow)
> > > > using the FXtree, right?
> > > >
> > > > Cheers
> > > >
> > > > tim
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > ---
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