Hi Peter,
thanks for looking into this.
Peter Hrenka wrote:
First you must call dirty() on vertices_
and normals_ (otherwise the VBO will not
be updated at all).
Will do this too. I'll have to do some more reading on VBOs, because I'm
not sure if there is a VBO per geometry, one per vertex/normal array or
one for the combination.
<OT>
Documentation ToDo
What I'm also getting at is that it is very difficult to understand at
what level in OSG to call dirty(). I have the same problem with knowing
where to set the DataVariance options.
</OT>
But there is still a bug in the update of the VBO.
Context 0 changes the _totalSize member of the
VertexBuffer object and context 1 assumes its
size is already changed...
I have fix using glGetBufferParameteriv which
I am preparing for submission.
Thanks again.
rgds
jp
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