Andreas Zieringer wrote:
> Hi Sebastian,
>
>   
>> Hi there,
>>
>> I would like to access the Display Lists generated by OpenSG.
>> For the moment I use OpenSG only to handle the geometry using the 
>> scenegraph infrastructure, but I do the rendering using my own tool.
>> To do so I need the geometry as a display list and as far as I know 
>> OpenSG stores the geometry by default in such a list.
>> But I wasn't able to get the Display List Id. There is a member of 
>> GeometryBase getGLId() but its protected and I couldn't find a way to 
>> acces it even by reimplementing my own Geometry class, which I derived 
>> from GeometryBase.
>> My question is:
>> Is there a possibility to access the display lists, created by OpenSG?
>> If yes, how does it work?
>>
>> Thank you for any feedback
>>
>>
>> Sebastin Knödel
>>     
>
> you can use the reflective interface just search for the "GLId" field 
> and read the value.
>
> Andreas
>
>   
If I understand you right I just read out the GLIdFieldId value of my 
geometry like

int DLid = anyGeo->GLIdFieldId;

but this gives me only the "Field value" which is 21 all the time, 
because its the 21. field in the set.
Any clue?

I also tried to cast the GeometryPtr to my own Type myGeometry, which 
doesn't work out right know.
The compiler tells me that I cannot convert from 'osg::GeometryPtr' to 
'myGeometry *'.
The code looks like that

-----
class myGeometry : public Geometry
{
public:
    myGeometry(){};

    inline int getDListID(PassiveWindowPtr win)    {return 
win->getGLObjectId(getGLId());}
};

myGeometry* myGeo;
.
.
.
myGeo = static_cast<myGeometry*>( anyOSGGeo);
int DLid = myGeo->getDListID(win);

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