Hi Mateusz,
From reading your message I'd say you don't really need semitransparent
geometries at all. Try to stick to a wireframe box or coloring the
selction set.
Regarding the order: yes. If you draw your instanced spheres first, you
can safely render the sides of your box in perfect ordering. But this
applies only if the spheres itself are not transparent.
Ordering has to be done w.r.t. the camera/viewpoint, so even fixed order
won't help if the spheres are transparent.
I'd really suggest going with the opaque spheres and rendering the
selection afterwards.
cheers
Sebastian
Hi Sebastian ,
Well, I need instancing as I render about 1M spehers presenting material atoms
structure. The Box I want to add is just a marker for a part of the whole
material, so user can focus easier on it. Moreover, box will always contain
instanced spheres inside, so the order is somehow fixed here or it is not
enough? If I would introduce also box as a custom shader program will this help?
...
Thank you!
Cheers,
Mateusz
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http://forum.openscenegraph.org/viewtopic.php?p=56362#56362
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