Preet wrote:
> On Sat, Jul 7, 2012 at 10:54 AM, Massimo Tarantini <> wrote:
>
> > Hello,
> >
> > i have compiled OSG and VPB for Android, and i'm using Necessitas on an
> > Archos 80G9. All the stuff works (well, the touch events are lost...) but i
> > can't see the texture.
> >
> > I have tryied some combinations for the options --image-ext and
> > [--compressed, --RGBA-compressed, --RGB-16, --RGB-24], but unsuccesfully.
> >
> > I suppose that OpenGL compression can't work on Android. But if i use for
> > example --image-ext jpeg --RGB-16, why it does not work?
> >
> > In the debug output i read:
> > [...]
> > 07-07 16:39:42.039: D/Qt(1611): uncompressed ive stream
> > [...]
> > 07-07 16:39:42.343: D/Qt(1611): TreatBoundariesToValidDataAsDefaultValue=0
> > 07-07 16:39:42.343: D/Qt(1611): 4
> > 07-07 16:39:42.343: D/Qt(1611): Created new 0xde6e60 TextureObject,
> > _numOfTextureObjects 5
> > 07-07 16:39:42.343: D/Qt(1611): 4
> > 07-07 16:39:42.343: D/Qt(1611): Created new 0xde6e60 TextureObject,
> > _numOfTextureObjects 6
> > 07-07 16:39:42.343: D/Qt(1611): 4
> > 07-07 16:39:42.343: D/Qt(1611): Created new 0xde6e60 TextureObject,
> > _numOfTextureObjects 7
> > 07-07 16:39:42.343: D/Qt(1611): 4
> > 07-07 16:39:42.351: D/Qt(1611): Warning: detected OpenGL error 'invalid
> > enumerant' at after RenderBin::draw(..)
> >
>
> I ran into something like this with GL ES 2. You didn't specify what
> version you compiled against, so this may or may not help you.
>
> Note the error generated. I found a couple of fixes by searching
> through the list and after some trial and error this is what worked on
> my platform:
>
> In the State header file (/include/osg/State i think) there's a
> function called State::applyModeOnTexUnit() that calls
> glEnable(GL_TEXTURE_2D). This isn't valid for GLES 2 so comment it
> out... I did something like:
>
> #ifndef OSG_GLES2_AVAILABLE
> // with opengl es 2, GL_TEXTURE_2D is always enabled
> // so trying to enable it explicitly causes errors
> if (enabled) glEnable(mode);
> else glDisable(mode);
> #endif
>
> Also in State.cpp (/src/osg/State.cpp) there's a function called
> initializeExtensionProcs(). Line 900 [i pulled osg from git] has an
> if() clause that checks for the max number of texture units available.
> I replaced it with:
>
> if ( osg::getGLVersionNumber() >= 2.0 ||
> osg::isGLExtensionSupported(_contextID,"GL_ARB_vertex_shader") ||
> OSG_GLES2_FEATURES)
> {
> glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,&_glMaxTextureUnits);
>
> #ifdef OSG_GLES2_AVAILABLE
> _glMaxTextureCoords = 1;
> #else
> glGetIntegerv(GL_MAX_TEXTURE_COORDS,&_glMaxTextureCoords);
> #endif
> }
>
> After those changes, textures started working for me.
>
> However, I noticed you're using Qt/Necessitas... not sure exactly what
> you're using Qt for, but just as a heads up, I ran into more problems
> using textures with QML that as of now I've been unable to solve (ie
> it makes QML unusable with OSG).
>
>
> > 07-07 16:39:42.351: D/Qt(1611): 2
> > 07-07 16:39:42.351: D/Qt(1611): end cull_draw() 0xdbf838
> > 07-07 16:39:42.351: D/Qt(1611): 5
> >
> >
> > Some advice?
> >
> > Thank you!
> >
> > Cheers,
> > Massimo
> >
> > ------------------
> > Read this topic online here:
> > http://forum.openscenegraph.org/viewtopic.php?p=48741#48741
> >
> >
> >
> >
> >
> > _______________________________________________
> > osg-users mailing list
> >
> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >
> _______________________________________________
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>
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> ------------------
> Post generated by Mail2Forum
Thanks for help.
I'am using GLES1.1
I have tryied to recompiled using _glMaxTextureCoords = 1; but it does not work.
I'm going on debugging...
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=48748#48748
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