[Bf-committers] Bind Camera to markers

[Vilem Novak]

Mike,
Where in the e-mail did I mention markers? :)
actually, it's the opposite. I think this kind of animation shouldn't be bound to markers at all!
I guess in this case markers were used instead of proper keyframes.
What I suggested is to have animatable certain properties, in this case scene.camera,
 which would have as possible keyframe values all the camera objects(or their names).
The closest thing to this also in 2.49 is animation of layers, since the keys are nothing 
which could be interpolated by any other curve than constant, which would be also
 in these cases(change meshes, cameras, text data, ...)
I can imagine there could be a group which would define the possible
 set of keyframes for some property, e.g. group of meshes which would be 
intended to replace some thing.
Which would possibly by the way enable another interesting feature, which is LOD
Game engine has this feature for meshes for ages, as the replace mesh actuator.
Hope this clears things up finally :)

> ------------ Původní zpráva ------------
> Od: Mike Belanger <mikejamesbelanger at gmail.com>
> Předmět: Re: [Bf-committers] Bind Camera to markers
> Datum: 12.6.2010 01:01:11
> ----------------------------------------
> Ok, so if I understand your proposal correctly, there should be a way to 'bind
> some kind of operator' to a Marker. 
> Rather than having a python hack ( the current system ) there should be a
> hard-coded, more extensible system for markers.
> 
> On 2010-06-11, at 2:36 AM, Vilem Novak wrote:
> 
> > Ok, this is a bit of a misunderstanding:
> > Besides the original cameras topic
> > we are talking about replacing some properties, so e.g. replacing a mesh, 
> > which would be a typical case if you e.g. simulate clay-based animation 
> > with replacement heads/mouths, since in such case
> > you don't always want to do things from 1 shape and animate it as shapes.
> > Another case is something I use quite often nowadays - conversion of
> greasepencil
> > animation to real curves so it can be rendered.
> > By 'animating text' I meant not animating of the object, but of the 'content'
> of such object,
> > thus e.g. doing animation of somebody typing, or else. 
> > These things can allready be done, when you animate object layers or hiding.
> or if you make a
> > set of object misplaced by e.g. 1000units, parent them all to an empty and
> then offset this empty.
> > I used both of these methods. Hiding/Layers don't work currently well with the
> current system, 
> > since what is hidden, is also hidden in the dopesheet, so you can't actually
> move the keys
> > (everything has to be scripted).
> > The 'misplacement' method is not optimal because of it makes scene bounds
> huge, so you can't use the
> > home key anymore, and probably during rendering with raytracing it can cause
> some serious performance
> > hit.
> > When we go back to the 'camera switching' topic, besides that the method is
> probably used by durian team,
> > (which is a strong argument why something is userfull), it's a way close to
> classical film making - you don't run
> > around with 1 camera, you shoot with several cameras and you make cuts.So, you
> can do it another way too,
> > but if properly implemented, this is more intuitive. If I remember right,
> Motion builder has a tool called camera switcher as
> > a separate thing, with it's own timeline.
> > Hope this explains what I actually meant in the previous e-mail.
> > Cheers
> > Vilem
> > 
> > 
> > 
> >> ------------ Původní zpráva ------------
> >> Od: Mike Belanger <mikejamesbelanger at gmail.com>
> >> Předmět: Re: [Bf-committers] Bind Camera to markers
> >> Datum: 11.6.2010 02:31:12
> >> ----------------------------------------
> >> What kind of usage case scenario would that fill?  The current animation
> system
> >> can animate text, do camera moves, and keyframe meshes.  
> >> I'm unsure what you mean by uses in rigging.
> >> 
> >> Markers are kind of neat, but IMO they're meant to remain simple.
> >> 
> >> On 2010-06-10, at 12:08 PM, Vilem Novak wrote:
> >> 
> >>> If I remember it right, the commit was in the svn mailing list commented as
> a
> >> temporary hack.
> >>> I would love some animation support for such properties, which are in the
> ui
> >> represented 
> >>> as the name of the datablock/string, since it could also be used not only
> to
> >> replace scene camera, 
> >>> but also replace meshes in some cases or to animate text. I can also
> imagine
> >> it could be used 
> >>> for some rigging cases.
> >>> Not sure if this could be done through the animation system?
> >>> 
> >>>> ------------ Původní zpráva ------------
> >>>> Od: Mike Belanger <mikejamesbelanger at gmail.com>
> >>>> Předmět: Re: [Bf-committers] Bind Camera to markers
> >>>> Datum: 10.6.2010 15:01:14
> >>>> ----------------------------------------
> >>>> I honestly don't know either reevuedelibre.
> >>>> 
> >>>> I just keyframe the camera, I don't see the point in learning a different
> >> tool
> >>>> just for camera moves.
> >>>> Also, you can use the NLA to keep track of shots :
> >> http://www.vimeo.com/5860167
> >>>> 
> >>>> On 2010-06-10, at 1:41 AM, revuedelibre . wrote:
> >>>> 
> >>>>> Hello,
> >>>>> 
> >>>>> I recently discover that way to change active camera during render is to
> >> use
> >>>>> "Bind camera to markers".
> >>>>> Why use markers ? Why not use Keyframe/drivers to change Scene.camera (
> >>>>> would be more homogeneous to other anim settings ) ?
> >>>>> 
> >>>>> Using markers, after binding, how to retrieve witch camera is linked to
> >>>>> witch marker ? I can't find any information about that.
> >>>>> 
> >>>>> Regards,
> >>>>> 
> >>>>> Ju+
> >>>>> _______________________________________________
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