[info-performer] pfGeoSetCB: copy and setDrawCB problem

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From: Alexandre Meyer (a.meyer++at++cs.ucl.ac.uk)
Date: 07/28/2002 05:01:09

Hi,

I'm new in Performer ...

I would like to use my own draw callback function for pfGeode geometry of a subpart
of my scene graph (to use NVidia Cg compiler).

For that I traverse the scene graph and I try to replace all pfGeoSet by pfGeoSetCB
like that:

                        pfGeoSet *oldgset = geode->getGSet(i);
                        pfGeoSetCB *gsetCB = new pfGeoSetCB();
                        gsetCB->copy(oldgset);
                        gsetCB->setDrawCB( drawCB, NULL);
                        geode->replaceGSet( oldgset, gsetCB);

but it doesn't work, my DrawCB is not used, ?
If I comment the line with the copy it works, my callback is used.
There is something that I don't understand in the copy function but what?

I could write a new copy function that copy a pfGeoSet to a pfGeoSetCB but
I would like to understand what is the problem with the standard copy
function here, if someone knows ...

Thanks,
Alex

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