[osg-users] Q: how do I render an object only to the depth buffer, not to the color buffer?

[Raymond de Vries]

Hi everyone,

I've searched the mailing list but could not find an answer or clue for 
the solution to my problem.

In principle, the issue seems simple to me but I find it hard to come up 
with an OSG solution. I would like to start my rendering with an object 
that does write to the depth buffer but does not write to the color 
buffer. I expect that I need to do something about the color mask but 
that is a camera setting.

Can anyone point me in the right direction?

Thanks a lot, best regards
Raymond

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