[Bf-committers] Vignette node for Blender's Compositor

[François T.]

Sorry Xavier, I didn't mean it that way. I was more referring to the
workflow of having realtime feedback of the scopes in the sequencer compare
to the compositor rather than the scope code itself.
Like Troy says, it more the underlying design of both compositor and
Sequencer where one is meant to play in "realtime" which is better suited
to do Grading in my opinion

my explanation was really bad, sorry again about that :)

2015-03-07 14:29 GMT+01:00 Xavier Thomas <xavier.thomas.1980 at gmail.com>:

> Hi, sorry if this is considered high-jacking the thread.
>
> What do you mean by no scopes in the compositor? You can use a viewer node
> and use the (fantastic :) scopes of the UV/image editor. What would you
> prefer? A "scope node" that display the scope directly in it's own UI in
> the node editor? That is very much possible and quite easy project for a
> c/c++ developer.
>
> I don't consider the scopes of the sequencer nice, I consider them horrible
> and horribly slow; they really should be ported to openGL and reuse the
> code of the image scopes. Back when I was working on this with Matt Ebb,
> the plan was to drop the sequencer dedicated viewer and use the UV image
> editor instead (like for compositor viewer nodes) so I did not spent time
> updating the sequencer scopes. But now the plan has changed ans sequencer
> viewer is here to stay :(
>
> I agree that the compositor is not the best place to do grading and I think
> the sequencer would be better. I also agree that the current state of the
> sequencer make this task cumbersome at best. So what is needed really in my
> opinion is a good redesign of the sequencer with grading in mind not only
> NLE. This is desperately needed for almost a decade but not a high priority
> target
>
>
> Xavier
>
> 2015-03-07 8:36 GMT-03:00 François T. <francoistarlier at gmail.com>:
>
> > I would second Troy on that, if you are going for a node as simple as a
> > vignette, try to make it as accurate as possible which can handle real AC
> > and could do reverse vignette, and part of this is usually linked to the
> > Lens model.
> > Going for a simple node which only do a mask or compute the length of a
> > vector which you could colorize is a bit overkill I presume. Then only go
> > with an addon and you will be fine. Your needs are far from from having a
> > magic bullet suite ;). Yes you will loose a bit in memory going from one
> > node to another, but your group is rather pretty simple.
> >
> > Ton is also right, and it does open a real question about probably a
> > missing piece in Blender which is the Grading part. Even though we get
> > easily attract to the compositor to do grading, it does not have the best
> > design to do so. It does lacks of real time scopes and only works on a
> > per-shot bases. The tile base rendering is not very good also for this
> > since it does makes the feedback slower. (cf davinci)
> > While the sequencer in another hand can work in the sequence context and
> > have nice scopes (which could be improved), it probably miss all the
> > flexibility of the compositor system also.
> > So designing a grading space in Blender is not such a crazy idea at a
> > design stage. It's a huge project though.
> >
> >
> >
> >
> > 2015-03-05 18:04 GMT+01:00 Akash Hamirwasia <akash.hamirwasia at gmail.com
> >:
> >
> > > Hi again!
> > >
> > > Look if a Vignette node which I have created can be added by default in
> > > Blender, it can be pretty helpful to everyone. Also there are no
> presets
> > in
> > > Node groups of Blender's compositor. If these presets for Blender can
> be
> > > made default, then later it would be easy to add more nodes, making it
> > > easier for more complex tasks in Blender.
> > >
> > > Thanks,
> > > Akash
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> > >
> >
> >
> >
> > --
> > ____________________
> > François Tarlier
> > www.francois-tarlier.com
> > www.linkedin.com/in/francoistarlier
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____________________
François Tarlier
www.francois-tarlier.com
www.linkedin.com/in/francoistarlier