I am trying to (still) load a huge model using opensg. I had a
question regarding
geometry creation in opensg. Does opensg have 2 copies of vertices and
indices in memory ?
That is one that is loaded into opengl using
glBegin(...)
glVertex
glend(...)
and another that is
GeoPositions3fPtr pnts = GeoPositions3f::create();
beginEditCP(pnts, GeoPositions3f::GeoPropDataFieldMask);
{
pnts->addValue(Pnt3f(x, y, z));
}
endEditCP(pnts, GeoPositions3f::GeoPropDataFieldMask);
Are there 2 copies in memory that are kept ? Or is there only one copy
in memory ?
Is there a way to make it use a opengl display list directly ?
That is I create an opengl display list and pass to opensg and opensg
uses this display
list to render geometry.
Thanks,
Manju
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