Dear luigi,

you wrote:
 I've to play a bit with width , height and the 3D controls of the
adobe reader to have a nice view,

You could just use movie15 parameters (from Laurana.tex in the archive
you mention)

 3Daac=60, 3Droll=0, 3Dc2c=0 745.639 0, 3Droo=745.639, 3Dcoo=22.607
-1618.68 -149.864,

and rewrite them as

 aac=60, roll=0, c2c={0, 745.639, 0}, roo=745.639, coo={22.607,
-1618.68, -149.864},

The ConTeXt 3D PDF module interface was influenced by movie15 for
obvious reasons (among them - unwillingness to write docs).

It should also be possible to select the model or its part in Adobe
GUI (in the model tree, for example), select "Zoom to part", ask Adobe
viewer for camera properties and use them for view parameters.
But I have to fix and improve my module to enable that functionality.

Michail
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