Transparent groups & sorting

Bit of a detail question here Say I want to create an object like a busstop shelter, having multiple glass panes. Should I merge all the transparent surfaces into one single group, or leave them as separate groups so they can be depth-sorted for the correct render-order?

The problem is: until now, the render order won't be pre-calculated. So you should split your object in one "interior" and one "exterior" Part. Usually, if you render first the interior and than the exterior part, it should be look well in each direction!

Marcel Kuhnt schrieb:

The problem is: until now, the render order won't be pre-calculated. So you should split your object in one "interior" and one "exterior" Part. Usually, if you render first the interior and than the exterior part, it should be look well in each direction!

Ah yes, that should be an adequate solution for most transparent objects

If I recall correctly the transparent groups are defined in an external descriptor file; the order of groups in this file will then define the render order?

Hmmm... in the description file are no groups - just files. But you can export two x/o3d-Files from blender (one interior, one exterior) and add them both in correct order to the description file. The order of the x-file/o3d-file calls in the object description file will be the render order!

Thanks for your answers!

So the meshes in the description file will appear as one object in the Streckeneditor ?

Exactly! One Object = a group of at least one or very many different x files!