Meaning of dr3d:distance and dr3d:focal-length

[Regina Henschel <rb...@t-online.de>]

Hi all,

I'm try to understand the 3D-scenes and come across the attributes 
dr3d:distance and dr3d:focal-length. They correspond directly to the 
properties fields in the "3D Effects" dialog.

I find a lot of descriptions for 3D-graphics modelling using VRP, VPN, 
VUP, "Projection Reference Point", "Direction of Projection" for 
parallel, "Center of Projection" for perspective, "Center of Window", 
and "Viewing Reference Coordinate System". But I cannot map these terms 
to "distance" and "focal-length". Because there are no lens and there is 
nothing like "out of focus" in the 3D-scenes, I do not realize how the 
terms are defined.

Kind regards
Regina

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@openoffice.apache.org
For additional commands, e-mail: dev-help@openoffice.apache.org