Hi Robert,
Both:
osgprecipitation textured_box.osg
osgprecipitation non_textured_box.osg
Work just fine for me, with SVN version of the OSG. Note, there has
been a shader related bug fix to GLObjectVistor that may well have a
baring on this issue.
Did you change the vbo lines in the PrecipitationEffect.cpp?
As for VBO/non VBO on objects in the scene, this should have
absolutely no effect on the precipitation, suggesting either a bug on
the OSG side or a driver bug. Could you try out the SVN version of
the OSG to see if this fixes things.
Sure, will do it right away.
Talk to you later,
Raymond
Robert.
Hi,
I am diving deep into the precipitation and trying out things (osg 2.4.0,
win xp, MS Visual Studio 2005 SP1). One of the things I did is to disable
the usage of vbos, in lines 480, 487 and 494:
_quadGeometry->setUseVertexBufferObjects(false);
_lineGeometry->setUseVertexBufferObjects(false);
_pointGeometry->setUseVertexBufferObjects(false);
When I do so, the precip is not drawn properly at all anymore, and it
depends if a load a textured or non-textured object (see the attached models
+ image):
- non-textured: box rendered ok, no precip at all although it seems to be
rendered judging from the performance
- textured: box rendered ok, precip is rendered not right at all (seems like
large polygons or so)
So the general question is: should I be able to disable vbo at all times? I
expected this would be possible (resulting in a performance penalty of
course). If so, there is an issue somewhere... I don't know where, although
I spent many hours on this.
Thanks a lot
Raymond
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