Am 9/28/2016 um 4:57 PM schrieb Gianni Ambrosio:
Hi Sebastian,
I would like to adopt you solution if possible but I was not able to implement
with textures the same behaviour of the example I did with primitive sets.
I know that on windows the example crashes in debug mode because of an
assertion inside Microsoft implementaition of std::vector. It's a matter of
_ITERATOR_DEBUG_LEVEL. In release mode it works fine. Just to explain the
reason. Anyway the movie should not crash :D
Movie is working ;) But if it is giving you an assertion in debug and
works in release mode it simply means you're using undefined behavior.
You should never rely on something like this.
So, do you think it would be possible to implement the same behaviour with
textures?
Not directly. If you really need to tag individual triangles it isn't
doable with a simple texture. In this case my next approach actually
would include using vertex colors and some shader to draw flat colored
triangles based on the provoking vertex.
The problem that makes this non-trivial is simply due to the vertex
sharing. If you duplicate the vertices (or at least some of them) it is
solveable without fancy tricks in 5 minutes, but depending on the number
of triangles in your road this might not be an option.
So how many triangles will be in your road?
Cheers
Sebastian
Regards,
Gianni
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=68814#68814
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
