[Bf-committers] Images in Panels..
xavier.thomas.1980 at gmail.com
Thu Aug 2 16:09:48 CEST 2012
You can save old state value before changing them using function such
glGetIntegerv(), glGetFloatv() ...
// save curernt state color and lighting
GLbolean old_lighting = glIsEnabled(GL_LIGHTING);
//Do your stuff, including changing color and lightind state
//restore color and lighting state
2012/8/2 Peter K.H. Gragert <pkhgragert at gmail.com>
> ok ok, but how to find out the 'original' state, save and restore, with
> A crash, I did not come across, using bgl ...
> 2012/8/1 Dalai Felinto <dfelinto at gmail.com>
> > > The problem I have right now is that the texture does not display the
> > transparency correctly, and that my gui seems to leak on the buttons
> > buttons) of blender spaces/areas/windows . I am now in the process of
> > cleaning up my code to make sure I am not doing anything stupid with bgl.
> > By the way, Blender doesn't set all the necessary opengl states required
> > draw the UI. If you are playing with bgl, it's kind of up to you to make
> > sure you re-set any changed state to its original value.
> > So this is not necessarily a bug, but more of a consequence of exposing a
> > low-level such as bgl
> > Dalai
> > 2012/8/1 Campbell Barton <ideasman42 at gmail.com>
> > > On Fri, Jul 27, 2012 at 9:08 PM, dimitris chloupis <
> thekilon at yahoo.co.uk
> > >
> > > wrote:
> > > > I did not say bgl is buggy , I only said that I am currently
> > > experiencing problems I can't isolate with some really weird behavior.
> > > assumption is that is bugs with my code and not bgl.
> > > >
> > > > The problem I have right now is that the texture does not display the
> > > transparency correctly, and that my gui seems to leak on the buttons
> > (menu
> > > buttons) of blender spaces/areas/windows . I am now in the process of
> > > cleaning up my code to make sure I am not doing anything stupid with
> > > >
> > > > If I find a bug with bgl rest assured I will report it to the bug
> > > tracker with an example case attached to it.
> > > >
> > > > All I am saying is that using bgl can be rather challenging. For
> > example
> > > using image.gl_load() outside a draw function will crash blender, yet
> > there
> > > is no such warning in the docs and it looks like a weird behavior
> > > image.gl_load() to be contained inside a draw . Doesn't it slow down
> > > blender. Attaching a image.gl_free() for example inside the same draw
> > does
> > > slow down blender considerably.
> > > >
> > > > So all I am saying bgl can be quite tricky to use.
> > >
> > > Could you report a bug in gl_load() crashing blender?, I tried to redo
> > > this but couldn't get blender to crash.
> > > _______________________________________________
> > > Bf-committers mailing list
> > > Bf-committers at blender.org
> > > http://lists.blender.org/mailman/listinfo/bf-committers
> > >
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-committers
> Bf-committers mailing list
> Bf-committers at blender.org
More information about the Bf-committers