Hello. I did read this nearly two months old discussion.
It would be nice to have one scenegraph. Such scenegraph
can handle both 3D and 2D. See modern game engines how
they handle 3D and 2D renderings.
GTK already has a some sort of scenegraph built-in, because one
can trace all widgets startin
On Sat, 2005-09-10 at 13:03 +1000, Russell Shaw wrote:
> Havoc Pennington wrote:
> > On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> >
> >>* OpenGL
> >
> > Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> > able to mix OpenGL and Cairo at will, but it isn't c
On Fri, 2005-09-09 at 20:23 -0400, Havoc Pennington wrote:
> On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> > * OpenGL
>
> Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> able to mix OpenGL and Cairo at will, but it isn't clear to me what that
> really means
Hi,
That's what I think also about 3D and printing too.
[For my own needs I develop a GtkPrinter widget
(because it does not exist on GTK+) for Windows 32.
Several developers use it, even if it has few
functions for the moment.
I dream about a such GtkPrinter for GTK+, for Win 32
and, also Linux/U
On Sat, 2005-09-10 at 10:29 +0100, Damon Chaplin wrote:
> On Fri, 2005-09-09 at 20:23 -0400, Havoc Pennington wrote:
> > On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> > > * OpenGL
> >
> > Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> > able to mix OpenGL
On Sat, 2005-09-10 at 10:29 +0100, Damon Chaplin wrote:
> On Fri, 2005-09-09 at 20:23 -0400, Havoc Pennington wrote:
> > On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> > > * OpenGL
> >
> > Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> > able to mix OpenGL
Le samedi 10 septembre 2005 à 10:29 +0100, Damon Chaplin a écrit :
> On Fri, 2005-09-09 at 20:23 -0400, Havoc Pennington wrote:
> > On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> > > * OpenGL
> >
> > Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> > able to
On Fri, 2005-09-09 at 20:23 -0400, Havoc Pennington wrote:
> On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> > * OpenGL
>
> Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
> able to mix OpenGL and Cairo at will, but it isn't clear to me what that
> really means
>>
>> Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
>> able to mix OpenGL and Cairo at will, but it isn't clear to me what that
>> really means.
>
3d scenegraphs are still another problem. I'm not sure one wants to have
3d and 2d capabilities in the same framework. I kno
Havoc Pennington wrote:
On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
* OpenGL
Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
able to mix OpenGL and Cairo at will, but it isn't clear to me what that
really means.
Kind of a similar question to is a compos
On Fri, 2005-09-09 at 09:53 +0200, Alexander Larsson wrote:
> * OpenGL
Any thoughts on that 3D vs. 2D thing? i.e. it seems like we want to be
able to mix OpenGL and Cairo at will, but it isn't clear to me what that
really means.
Kind of a similar question to is a compositing manager best done wit
On Thu, 2005-09-08 at 19:51 +0100, Roger Leigh wrote:
> > I think the point is that the simple approach doesn't deal with arbitrary
> > transformations.
>
> Now GTK+ is using Cairo for drawing, couldn't the widgets themselves
> be turned into canvas items? That would be awesome.
I'm not sure exa
On Thu, 2005-09-08 at 14:35 -0400, Havoc Pennington wrote:
> Piccolo does have this feature, so it might be interesting to look at
> that. Also one of their demos has a "lens" item, where some items are
> only visible if they are intersecting the "lens" ; not sure how that
> demo works, but it seem
On Thu, 2005-09-08 at 20:49 +0200, Øyvind Kolås wrote:
> On 9/8/05, Gustavo J. A. M. Carneiro <[EMAIL PROTECTED]> wrote:
> > The way I see it, you would always have only one item, which just
> > happens to draw more stuff if zoom level allows it. Or you could have a
> > single item but with items
A number of interesting issues get raised when one talks about scalable
canvases, especially when the complexity of the rendered content changes
with 'zoom level'.
It may be important to distinguish between scaled-canvas-size, and
notional "zoom level". For instance, a user with poor vision m
"muppet" <[EMAIL PROTECTED]> writes:
> Gustavo J. A. M. Carneiro said:
>> On Wed, 2005-09-07 at 16:54 +0200, Alexander Larsson wrote:
>>> On Mon, 2005-08-15 at 02:38 -0400, Havoc Pennington wrote:
>>> > 4. Widget embedding. Absolutely critical to using the canvas
>>> >for real-world UI. The wi
On 9/8/05, Gustavo J. A. M. Carneiro <[EMAIL PROTECTED]> wrote:
> The way I see it, you would always have only one item, which just
> happens to draw more stuff if zoom level allows it. Or you could have a
> single item but with items inside, as sub-items, that are made visible
> at some point. B
Piccolo does have this feature, so it might be interesting to look at
that. Also one of their demos has a "lens" item, where some items are
only visible if they are intersecting the "lens" ; not sure how that
demo works, but it seems like it may be interesting to find out.
Havoc
> > On Thu, 2005-09-08 at 14:31 +0200, Alexander Larsson wrote:
> depending on zoom factor) things break. I mean, if you show two views of
> the same canvas, one with a large zoom factor and one with a small zoom
> factor, does the child item get added?
s/added/rendered/ at least for the canvas fo
On Thu, 2005-09-08 at 19:16 +0200, Alexander Larsson wrote:
> On Thu, 2005-09-08 at 17:00 +0100, Gustavo J. A. M. Carneiro wrote:
> > On Thu, 2005-09-08 at 14:31 +0200, Alexander Larsson wrote:
>
> > > At some level this is perfectly fine, however when you start to change
> > > the geometry (i.e.
On Thu, 2005-09-08 at 17:00 +0100, Gustavo J. A. M. Carneiro wrote:
> On Thu, 2005-09-08 at 14:31 +0200, Alexander Larsson wrote:
> > At some level this is perfectly fine, however when you start to change
> > the geometry (i.e. the size, position and number of canvas items) things
> > get really h
On Thu, 2005-09-08 at 17:05 +0100, Gustavo J. A. M. Carneiro wrote:
> >
> > In my initial thinking about this and talking to various people about it
> > i've notived that this is pretty essential for a usable canvas:
> >
> > > 4. Widget embedding. Absolutely critical to using the canvas
> > >
Gustavo J. A. M. Carneiro said:
> On Wed, 2005-09-07 at 16:54 +0200, Alexander Larsson wrote:
>> On Mon, 2005-08-15 at 02:38 -0400, Havoc Pennington wrote:
>> > 4. Widget embedding. Absolutely critical to using the canvas
>> >for real-world UI. The widget embedding can't be broken
>> >as i
On Wed, 2005-09-07 at 16:54 +0200, Alexander Larsson wrote:
> On Mon, 2005-08-15 at 02:38 -0400, Havoc Pennington wrote:
> > Hi,
> >
> > Been thinking about canvas widgets a little this weekend, thought I'd
> > write down some notes. Some people are doubtless way ahead of me.
>
> Just dropping a
On Thu, 2005-09-08 at 14:31 +0200, Alexander Larsson wrote:
> On Thu, 2005-09-08 at 09:30 +0200, Øyvind Kolås wrote:
> >
> > When playing around with some zoomable canvas prototypes using cairo
> > earlier, I created a canvas container element that acted as a switch.
> > At one zoom level it was s
On Thu, 2005-09-08 at 09:30 +0200, Øyvind Kolås wrote:
>
> When playing around with some zoomable canvas prototypes using cairo
> earlier, I created a canvas container element that acted as a switch.
> At one zoom level it was showing one set of children, and when zoomed
> beyond a defined thresho
On 8/23/05, Arjan Molenaar <[EMAIL PROTECTED]> wrote:
> Quoting Alexander Larsson <[EMAIL PROTECTED]>:
> > On Mon, 2005-08-15 at 20:06 +0200, Soeren Sandmann wrote:
> >> Havoc Pennington <[EMAIL PROTECTED]> writes:
> >>
> >> > So random thoughts.
> >>
> >> A few more random thoughts:
> >>
> >> - Zo
On Mon, 2005-08-15 at 02:38 -0400, Havoc Pennington wrote:
> Hi,
>
> Been thinking about canvas widgets a little this weekend, thought I'd
> write down some notes. Some people are doubtless way ahead of me.
Just dropping a note to say I'm planning to work on this. I've started
looking at various
Quoting Alexander Larsson <[EMAIL PROTECTED]>:
On Mon, 2005-08-15 at 20:06 +0200, Soeren Sandmann wrote:
Havoc Pennington <[EMAIL PROTECTED]> writes:
> So random thoughts.
A few more random thoughts:
- Zooming is more than just setting a transformation matrix because
the reason you want to
On Mon, 2005-08-15 at 20:06 +0200, Soeren Sandmann wrote:
> Havoc Pennington <[EMAIL PROTECTED]> writes:
>
> > So random thoughts.
>
> A few more random thoughts:
>
> - Zooming is more than just setting a transformation matrix because
> the reason you want to zoom is to see more details. So som
On Mon, 2005-08-15 at 20:06 +0200, Soeren Sandmann wrote:
> Havoc Pennington <[EMAIL PROTECTED]> writes:
>
> > So random thoughts.
>
> A few more random thoughts:
>
All good stuff, Piccolo and Java3D have some ideas here -
> - Zooming is more than just setting a transformation matrix because
>
Havoc Pennington <[EMAIL PROTECTED]> writes:
> So random thoughts.
A few more random thoughts:
- Ability for one canvas to view more than one model at the same time
is useful so that you can have eg., the coordinate axes and the
graph be separate models for a graphing display.
- Zooming is
Le lundi 15 août 2005 à 02:38 -0400, Havoc Pennington a écrit :
> Hi,
>
> Been thinking about canvas widgets a little this weekend, thought I'd
> write down some notes. Some people are doubtless way ahead of me.
>
> This isn't very organized. Summary of this mail is that GnomeCanvas was
> missing
Hi,
Been thinking about canvas widgets a little this weekend, thought I'd
write down some notes. Some people are doubtless way ahead of me.
This isn't very organized. Summary of this mail is that GnomeCanvas was
missing some very useful features a canvas can have, so I was
underestimating the val
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