[osg-users] Transparency problem

Paul Melis paul at science.uva.nl
Fri Sep 28 06:49:06 PDT 2007


Panagiotis Papadakos wrote:

>Hi again!
>
>Well I don't think that RenderBins can help me with this. My problem is 
>probably due to the fact that I use transparent objects that are too close 
>to each other (0.1f). That is probably why if I move the camera around, 
>some times things are rendered correctly!
>  
>
That sounds more like a problem related to sorting: the sorted order 
changes as you move the camera.
Have you tried assigning a separate render-bin to each of the text 
layers? That should give you a correct rendering from at least one side 
of layers.

Paul

> 	Panagiotis Papadakos
>
>On Fri, 28 Sep 2007, Andreas.Richter at dlr.de wrote:
>
>  
>
>>>Well I have already tried to change the stateset of the geode of the
>>>osgText for example with something like
>>>
>>>stateSetGeode->setRenderBinDetails(15, "RenderBin",
>>>osg::StateSet::OVERRIDE_RENDERBIN_DETAILS)
>>>
>>>, but it doesn't seem to help. The bigger the renderbin the
>>>later it is rendered in the scene, right?
>>>      
>>>
>>Yes, the foremost object have to get the highest binNumber. In my case I
>>only have to set these number like below and it works fine for me with
>>static objects:
>>
>>	osg::StateSet *stateSet = new osg::StateSet;
>>
>>	// specify when object is going to be drawn
>>	stateSet->setBinNumber(99);
>>
>>	object->setStateSet(stateSet);
>>
>>I don't know if this works with HUDs. May be you also have to set the
>>binNumber for the HUD. Perhaps the problem lies elsewhere and someone
>>else can help.
>>-- 
>>Andreas Richter
>>_______________________________________________
>>osg-users mailing list
>>osg-users at lists.openscenegraph.org
>>http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
>>    
>>
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>  
>




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