getGeometrySubclass() and modifying geometry

[morzh]

Hi, guys. I've read this doc

http://www.sidefx.co...imgeometry.html

and the following part is interesting for me:

GU_ConstDetailHandle SIM_MyOwnGeometry::getGeometrySubclass() const

{

if( myDetailHandle.isNull() )

{

GU_Detail* gdp = new GU_Detail();

myDetailHandle.allocateAndSet(gdp);

.. // Generate geometry for myOwnRepresentation

.. // and store this geometry in gdp

}

return myDetailHandle;

}

As I have understood, I should create NEW geometry each frame (each time Houdini executes getGeometrySubclass ). BUT I want only to create myGeometry in the first frame and update it each frame. It is simply to implement, but modified myGeometry is not updating in the viewport. I guess it should be done something with myDetailHandle (cause it caches 'first frame geometry' and never updates it), but now i have no understanding what should I do. Any ideas ?

Edited February 26, 2013 by morzh