Hi Tobias,
sounds interesting :-) I think the nicest solutions is to not include any
CGChunk headers or link against it.
Andreas
I did something like this:
_current_cg =
StateChunkPtr::dcast(FieldContainerFactory::the()->createFieldContainer("CGChunk"));
if(_current_cg == NullFC) // no CGChunk compiled in OpenSG
return;
string prg = "..." ; // shader program
unsigned int profile = ...;
BitVector mask =
_current_cg->getType().findFieldDescription("vertexProfile")->getFieldMask()
|
_current_cg->getType().findFieldDescription("vertexProgram")->getFieldMask();
beginEditCP(_current_cg, mask);
SFUInt32 *fui = dynamic_cast<SFUInt32
*>(_current_cg->getField("vertexProfile"));
if(fui != NULL)
fui->setValue(profile);
SFString *fs = dynamic_cast<SFString
*>(_current_cg->getField("vertexProgram"));
if(fs != NULL)
fs->setValue(prg);
endEditCP(_current_cg, mask);
}
...
BitVector mask =
_current_cg->getType().findFieldDescription("fragmentProfile")->getFieldMask()
|
_current_cg->getType().findFieldDescription("fragmentProgram")->getFieldMask();
beginEditCP(_current_cg, mask);
SFUInt32 *fui = dynamic_cast<SFUInt32
*>(_current_cg->getField("fragmentProfile"));
if(fui != NULL)
fui->setValue(profile);
SFString *fs = dynamic_cast<SFString
*>(_current_cg->getField("fragmentProgram"));
if(fs != NULL)
fs->setValue(prg);
endEditCP(_current_cg, mask);
> Hi.
>
> I'm messing around with the FileIO/WRL Loader and added some functionality
> to put Cg shaders into VRML files. I used the Contrib/CGChunk for that,
> which (naturally) caused some errors with unlocateable header files
> (OSGCGChunk.h, et al.) and will probably cause some linking errors due to
> circular dependencies between libosgsystem and libosfcontrib (not sure
> about that, though).
>
> What do I have to do to make that compile nicely? To be honest, I'm
> somewhat dumbstruck when I comes to OpenSGs build process. :)
>
> Tobias
>
>
>
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