Hi Robert,
Hi Sebastian,
On 16 January 2014 08:12, Sebastian Messerschmidt
<[email protected]
<mailto:[email protected]>> wrote:
Hi Ethan,
Thanks for bearing with me Robert, I do realize that there has
been much discussion over this topic (I have spent hours
trying to understand it all but OSG is the only exposure to
OpenGL that I've ever had so trying to understand it all is
tricky for me).
You mention using the osg_deprecated to tide me over, but I'm
wondering what is the more appropriate long-term solution. To
be clear, I don't need to support any existing geometry that
contains BIND_PER_PRIMITIVE (i.e. I don't need to use
fixDeprecatedData(). What I do need to do is to be able to
create new osgGeometry objects with osg3.2 and future versions
of osg that allow me to have the end-effect of coloring each
primitive individually. Now, if I am understanding correctly,
what I will have to do when creating new geometry is to only
put a single primitive in each primitiveset and use
BIND_PER_PRIMITIVE_SET. My understanding is that
BIND_PER_PRIMITIVE_SET is supported in OpenGL and that this
will not be deprecated any time soon. Do I have this more or
less correct?
Bind per primitive is supported, and I guess that it won't be
deprecated any time soon.
It would seem that you have got your information mixed up.
Thank you for the correction. Of course I meant "per primitive set"
BIND_PER_PRIMITIVE had been deprecated for many years, modern OpenGL
does not support it in any form so you have to emulate it. In OSG-3.2
official support for BIND_PER_PRIMITIVE was removed and a fallback
provided to convert old data across to not use BIND_PER_PRIMITIVE. In
OSG-3.2 a deprecated_osg::Geometry class provides the old API support
for those that a need a quick workround for code that uses old
deprecated features.
Robert.
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