I've been getting mad on transparency attributes setting.
I want to change the transparency of an imported VRML object at run-time. I implemented a Scenegraph parser that seeks for all Shape3D, their Appearance and relative Transparency Attributes. Then I invoke the .setTransparency(<float>) on them.
The setting is done on non-live and non-compiled graphs.
The problem is that the setting works for some objects while for others doesn't work.
I scanned also the VRML source to understand a bit more. If the objects was already transparent in VRML -> it works If the object was not transparent in VRML -> it doesn't work. Notice that, even if the object was NOT transparent in VRML, the loader already allocate the TransparencyAttributes, but setting them doesn't work. In order to make it work I had to replace the code:
TransparencyAttributes transp_attr = app.getTransparencyAttributes() ; transp_attr.setTransparency(transp_level) ;
to this:
TransparencyAttributes transp_attr = new TransparencyAttributes(
TransparencyAttributes.NICEST, transp_level) ;
app.setTransparencyAttributes(transp_attr) ;
The question is: Does anybody know if the are already known bugs in setting a new transparency value to existing TransparencyAttributes?
My system: Linux 2.4.22 nVidia gForce 4 4200 Go (driver v4496 for ia32) jdk 1.4.2 (but tested also in 1.4.1) Java3D 1.3.1 - beta
thanks, Fabrizio NUNNARI
P.S.: BTW, maybe the problem is the "beta". Any news about latest release? Thanks.
-- Fabrizio NUNNARI (nunnarif at di.unito.it) PhD Student - Computer Science Department - University of Torino - Italy http://www.di.unito.it/~nunnarif
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