[osg-users] Camera::setPreDrawCallback -> add?

Anders Backman andersb at cs.umu.se
Fri Aug 31 06:33:42 PDT 2007


Hi.

In osgProducer there was the concept of a list of pre/post drawcallbacks.

In osgViewer there can be only one.

Is purposely done for a specific reason (performance, complexity, ..)?
It is not very uncommon to have several pre/post draw callbacks for a
viewer, and if you are developing an API where you internally to the API add
drawcallbacks, and the user of the api accesses the camera later on and do
camera->setPreDrawCallback(myCallback), well then you are fried.


So could it be possible to refactor that into a list of callbacks?
/Anders
-- 


________________________________________________________________
Anders Backman               Email:    andersb at cs.umu.se
HPC2N/VRlab                  Phone:    +46 (0)90-786 9936
Umea university              Cellular: +46 (0)70-392 64 67
S-901 87 UMEA SWEDEN         Fax:      +46 90-786 6126
                               http://www.cs.umu.se/~andersb
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