Enlightenment

Hey

> I have been reading and trying EFL and its docs. I tried some
> animations, wrote some simple EDC files, played with them from C code,
> checked Embryo. My aim is to make windows effects like in this movie:
> http://dist.trolltech.com/video/qtembedded44video.mov ()
>
> It is done via qt-embedded and i am not sure whether such animations
> are possible by using EFL. They are like 3D effects

the devices have indeed 3d chips and can use open gl es

> and i am not sure the 3D abilities of EFL.

no possible 3d (for now ?). We can use open gl hardware acceleration for 
the 2d.

> The current restriction for me is now i am
> trying to run them using DirectFB.  I will be glad if you guide me
> about this issue. ( Where to check? The logic to create such
> animations? Which libraries can be used? .. etc.)

i've never thought about such animations and i'm not skilled enough 
anyway. Wait for some devs to answer

regards

Vincent

On Fri, 2009-01-16 at 18:00 +0200, Veli Ogla Sungutay wrote:
> Hi Oguz,
> 
> Evas doesn't have a Matrix Class so 3D is out of the question unless
> you use image sequences. 
> If you look at Evas.h you can see the matrix routines though, Gustavo
> had told me that they will be implemented in the future.
> 
> Edje is super powerful but it will take some time to grasp. You can
> experiment with Ecore_Timer 

I checked the timer. I liked the things that can be done via Edje. Still
digging it. But i want 3D effects also. I am still not sure what i need
for it to make 3D effects by using DirectFB.

> and evas_object_* calls. 

Tried calls also.

> As I recommended earlier, Elementary could be a good choice as a
> widget library. Since everything is an Evas_Object, you can move
> things, scale, fade, etc... 

I tried those effects.

> accordingly with Ecore_Timer hacks.

Thanx.

On Fri, 2009-01-16 at 18:10 +0100, Vincent Torri wrote:
> no possible 3d (for now ?). We can use open gl hardware acceleration
> for 
> the 2d.

So if i enabled the gl support while compiling EFL and install required
libraries may i have 3D abilities while using EFL? Dont forget that i am
using DirectFB.

No Vincent says you can use the OpenGL hardware acceleration for *2d*.

Evas doesn't do 3D. Evas doesn't have the z coordinate.  We can however fake
3D with perspective and we need a Transformation Matrix for
rotation/scale/translation.

In your Evas.h look for evas_transform_*.  But they're not implemented at
the moment. I hope someone is working on these.

After we have the Transformation Matrix for Evas Objects, we'll need a 3D
Library, a simple one with a Perspective Matrix in its core would suffice.






On Sat, Jan 17, 2009 at 8:06 PM, Oguz Yarimtepe <comp.ogz@...> wrote:

> On Fri, 2009-01-16 at 18:10 +0100, Vincent Torri wrote:
> > no possible 3d (for now ?). We can use open gl hardware acceleration
> > for
> > the 2d.
>
> So if i enabled the gl support while compiling EFL and install required
> libraries may i have 3D abilities while using EFL? Dont forget that i am
> using DirectFB.
>
>
>
>
>
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-- 
Veli Sungutay
http://www.lyciasoft.com

Hi,

On Sat, Jan 17, 2009 at 8:59 PM, Veli Ogla Sungutay
<velisungutay@...> wrote:
> No Vincent says you can use the OpenGL hardware acceleration for *2d*.
>

Ok.

> Evas doesn't do 3D. Evas doesn't have the z coordinate.  We can however fake
> 3D with perspective and we need a Transformation Matrix for
> rotation/scale/translation.
>
> In your Evas.h look for evas_transform_*.  But they're not implemented at
> the moment. I hope someone is working on these.

I checked the file. There is a c file implementing the functions
defined at the header file: evas_transform.c

But at the devel list it is talked about an engine backend for this
structure work:
http://www.mail-archive.com/enlightenment-devel@...>

So what is the status of these functions? Is there any roadmap?

>
> After we have the Transformation Matrix for Evas Objects, we'll need a 3D
> Library, a simple one with a Perspective Matrix in its core would suffice.
>
>

Thanx.

-- 
Oğuz Yarımtepe
 http://www.loopbacking.info