Re: compositing help/virtual sets/camera tracking 2005-05-15 - By elsiget
Back
Ah ok,
I thought you wanted what you had filmed in front of background 3d
objects, as then you'd have to match a plane with alpha and point at...
If you only need foreground elements then backdrop will do the job...
But you were talking about compositing it together later in AF or
something, so then you just want to render the 3d elements in 1 or 2
layers(BG and FG), and the backdrop won't be used, or something like that?
I'd be very interested in hearing about results, as I've thought of
trying this kind of thing in Carrara myself...
Carl, I don't have any camera matching progs, so I can't really say
how well these things can be exported, I just know it's been discussed
that you can use fbx or bvh for it before...
Of course that would only export camera movements, and not camera lens
and lens changes...
But if you have another program (maybe XSI:Mod Tool can read the
exported files), you can probably check timing of camera lens changes...
Hope your compositing works out ok...
--- In Carrara@(protected), "xanderc1" <xander@(protected)> wrote:
> elsignet,
>
> Carl understands exactly what I'm looking for. I played with backdrop
> in scene property tray and that seems to be Eovia's solution for
> compositing. It's not as efficient as C4D's implementation, but it
> may just work.
>
> Now the issue is camera tracking in the video footage. I will try to
> export the camera data as an fbx or bvh file and dink with that as a
> possible solution. However, another solution is to keyframe the
> video's camera movement, rendering every couple of frames to ensure
> continuity with the backdrop. Not efficent, but doable, I guess.
>
> How do I submit feature requests to Eovia? or are there any software
> developers who can write a plug-in for the camera (.cbr)?
>
> X
>
> --- In Carrara@(protected), "elsiget" <elsiget@(protected)> wrote:
> > If you can get the camera motion as fbx or bvh (which is possible
> with
> > SynthEyes at least),
> > you can import the fbx or bvh motion for the camera...
> > I've never done this, but I just know it's possible...
> >
> > Carl,
> > I think he wants the original video on top of it,
> > so what you want is to use a billboard or plane with the texture
> > mapped onto it, and then you want to use the Point at modifier, to
> > make it always face the camera...
> >
> > --- In Carrara@(protected), Carl Desmond <carl@(protected)> wrote:
> > > X,
> > > You can select the scene and choose "backdrop" from the
> properties tray.
> > > Choose "map" and browse for your .mov or .avi file. If you test
> > render as
> > > you go you might be able to get look you are after. Don't render
> the
> > scene
> > > with the movie unless you have a shadow catcher that is needed.
> > Otherwise
> > > just render with alpha channel and composite.
> > >
> > > I don't believe you can get the camera motion into carrara, but I
> > would sure
> > > like to see it done in the future.
> > >
> > > Thanks
> > > Desmond
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