[osg-users] Question about array binding

Werner Modenbach Werner.Modenbach at modenbach-ac.de
Wed Mar 10 07:35:40 PST 2021

Hi Robert,

I had a look at the code in osg::Geometry. The lines in question are:











Do you remember, why the condition
            getBinding() == BIND_PER_VERTEX
is there?
_But(!) _the same condition is at _normalArray, _colorArray etc. and they are handled correct with BIND_OVERALL.

I don't understand what is really done there. Sorry.

- Werner -

Am 09.03.2021 um 21:27 schrieb Robert Osfield:
> HI Werner,
> I can't think of think of reason that would cause a problem.  It's quite a while since I look at the associated code so it might be simply that I've forgotten constraints.  Have
> a look at the osg::Geometry::drawImplementation() to see if there is a constraint on vertex attributes needing to be BIND_PER_VERTEX.
> If you were using the VSG that I'd suggest running with Vulkan debug and API layer as it's great for picking up errors.  Are there any OpenGL errors being produced?
> Robert. 
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