Hi Antonio,
Hi Dirk,
I have a 3ds file with some geometries being partially
transparent, I convert the file using vred to osb.
The resulting osb file looks perfect within vred
but depth sorting seems to get broken when I load
the same file in my own program (using the osg
file standard file loader). Any ideas what
could go wrong?
I'm not sure what Vred's default settings for transSort and ZWriteTrans
are, that might explain the difference. Andreas, what are those?
What's transSort and ZWriteTrans ?
These are the default settings in vred for the render action.
ract->setSortTrans(true); // renders transparent objects from back to front.
ract->setZWriteTrans(true); // enables the zbuffer for transparent objects
ract->setLocalLights(true);
ract->setCorrectTwoSidedLighting(true);
Andreas
I have a suspicion: I use
a MatrixCamera and the SimpleSceneManager,
I know that picking gets broken because the
SimpleSceneManager doesn't know anything about
my actual camera. Could it be that depth sorting
is performed using the settings of the camera
included in the SimpleSceneManager, and therefore
my sorting gets screwed?
Hm, unless you put the camera transformation in the projection matrix it
should work just fine. Is your viewing matrix the identity? That would
explain it.
My Projection Matrix is a perspective standard matrix.
My viewing Matrix is something like this:
osg::MatrixLookAt( modelViewMatrix, 0, 0, 0, 0, 0, 1, 0, -1, 0 );
Almost identity. But that shouldn't have any impact on the
depth sorting?!
Well I noticed that the lighting gets also influenced by the
SimpleSceneManager camera instead of the actual camera.
BTW, I tried to inherit the SimpleSceneManager to put my
camera in it but the camera is a perspective camera
and thus can't be overwritten with a MatrixCamera :(
Cheers,
Toni
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