Hello Adrian,
> what i do at the moment is, i walk trought the drawables and collect all
> triangles, so i don't care about material, ... nor transformations. what i
> should do is to transform the triangles before insertion. but i don't like
> this way. another possibility is:
> for each geometry (hard) we can attache a kd-tree object, and then the
> intersection visitor transforms the objects when a transformation node is
> used, this is the
> way it works with the current intersection visitor (if i am not wrong), so i
> like just to replace a small part of code in OSG core, to check a ray (line)
> against the kd-tree
> and not against the list of triangles in the geometry. so we can speed up
> the intersection testing. but what we need is to implement this into osg
> core.
That second way makes more sense. But you don't necessarily need to
integrate it into the core OSG...
If you want to do that without having to wait for someone to integrate
it into the core OSG, you could just copy the classes you need from
the OSG source tree into your sources, rename them so they don't clash
and then modify them as needed. That way we could progress on this and
later, when Robert is available, you'll have even less changes needed
to integrate your code into the core.
J-S
--
______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://whitestar02.webhop.org/
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