[sldev] "background sky" render pass, render pass sequence

[Chromanoid Xeno]

Hello,
I could not really figure out when the background sky is rendered. Can somebody say it is rendered at the end?
Are the solid HUD elements rendered at the beginning?
At all I would really like to know how the render passes are sorted. Are there any documents about that? I searched quite a long time for a general rendering rule in the viewer sourcecode but i did not really find something...
I presume the rule is:
1. Solids front to back
2. Transparent back to front
3. Sky/Background

Does anybody know if i am right?

I ask because i would really like to see depth of field effects etc.. For a possible implementation i would really like to know more about the rendering sequence...

Anything you can tell me would be much appreciated.

Best regards
Christian
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