Just some quick notes, see below for the answers:
On Mon, Aug 26, 2013 at 4:51 PM, Fabien Chéreau <fabien.cher...@gmail.com>wrote:
> Hi Bogdan,
>
> I currently have a bit more free time, and I was actually
> investigating doing some major refactoring of the project (not a total
> rewrite but not very far from that :D )
> Basically what I want is to produce a much lighter version of
> Stellarium based on Qt5 and OpenGL ES2 features only (it's a
> requirement of Qt5 itself). This involves:
> - revert all changes from GSOC 2012 on the renderer: after having a
> detailed look I am convinced that all this work is almost useless from
> the moment on we want to support only GLES2. It also introduced a
> number of rendering bugs, as well as a large performance penalty. I've
> done most of this revert in a branch called
> https://code.launchpad.net/~stellarium/stellarium/simplegles and went
> from 45 FPS to 62 FPS on my computer.
>
Isn't this caused by the dynamic shadows?
> - suppress completely GL1-related code and focus on shader-based
> rendering only. This is also almost done in the branch.
>
Well, let's say I'm not really comfortable with that, since my current
computer supports only GL1...
> - switch to the new Qt rendering system, i.e. abandon rendering based
> on QGraphicsView / QWidgets and use only classes from the new QtGUI
> module (the one from Qt5). I am not completely sure but this may
> involve a complete GUI re-write based on QML. This last task may sound
> quite ambitious. I'm quite confident that we can reproduce a GUI
> similar to the current one based on QML, but it may cause some
> troubles for interactions with plugin etc.
>
If the GUI/core separation has been done properly, we can have both
QWidgets and QML, at least for a while.
One of the things that were on my TODO list (for when I had more time) was
to organize some work on better GUI separation for the plug-ins, so that
they could be used in the Android port (the .org port, not your Stellarium
Mobile). Basically, the same stuff done with the core and the main GUI - a
possibility to have alternative GUI modules for each plug-in.
Bogdan
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