Hi Stephan,
You created a nested renderbin, and because of its non negative bin
number it will draw after the contents of the first bin.
Both are DepthSortedBin with binNumber 10.
Regards, Laurens.
On 11/14/2011 5:56 PM, Stephan Maximilian Huber wrote:
Hi
I am having problems with renderbins, this is maybe a bug in osg or I
have problems to understand the concepts behind renderbins.
Here's a simplified test:
root
+ PAT 1
+ geode
+ geo
+ PAT 2
+ geode
+ geo
+ PAT 3
+ geode
+ geo
the root-group has a stateset with TRANSPARENT_BIN, PAT 1 is positioned
at (0/0/0) and has a geode containing a geometry with a red quad (see
links) and another PAT 2 holding some linestrip geometry. PAT 3
contains a geode with a green geometry, positioned at 100/100/100. The
camera projection matrix is basically a hud.
When PAT 2 has a stateset with
->setRenderingHint(osg::StateAttribute::TRANSPARENT_BIN) then the
depth-sorting is wrong (see bad.osg), if I remove the
setRenderingHint-call, everything is correct (good.osg).
So what's wrong with my setup? basically all drawables should end in
render-bin 10, regardless of additional setRenderingHint-calls by
enclosed childs, shouldn't they?
AFAIK this worked in previous versions of osg.
Attached you'll find two osg-models showing the problem and the
corresponding screenshots:
good: http://scrups.cefix.org//8k/ikhqjtvumlwco.png
bad : http://scrups.cefix.org//8r/nozjb4u5y8owc.png
This is with a recent checkout of osg-trunk (3.1.0)
cheers,
Stephan
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