[osg-users] Trouble with transitioning to OSG

[Jan Ciger]

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On 24/06/15 22:50, sam wrote:
> Hi All,
> 
> I have a snippet of code that I am trying to reproduce using OSG,
> it was originally written in pretty raw gl with glm. You can view
> it here: http://pastebin.com/PYphHLYE
> 
> I currently have the following snippet and the geometry references
> are all over the place. If somebody could take a quick look and see
> if I'm missing something fundamental, that would be great:
> 
> http://pastebin.com/nhSzZGdu

If nothing else, be careful that OSG uses row major matrices and
premultiplies - if v is a vertex, then its transformation is usually
expressed as v' = M * v but in OSG you will have it as v' = v * M (and
the matrices are transposed).

J.
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