Hello,
this might not be 100% what you are asking for, but did you ever play
with sIBL GUI?
http://www.hdrlabs.com/sibl/framework.html
If you will, it's a (free) management software for HDR libraries, with a
convenient way to auto-create a light rig in your scene, by a button
click. (A connection plugin for Soft needs to be installed for that to
work, which will listen on some tcp port. For Softimage, mental ray,
VRay, Arnold are supported for now)
It (among other things) creates a nurbs sphere, for visual feedback
purposes, with an extra spot light (for better shadows) linked to it via
Surface constraint on the more or less exact position of the sun (where
was already defined in the sIBL package).
Also, it adds a background, reflection and lighting environment shader
in some network, each with a rotation expression, something like
( sIBL_Feedback.kine.global.roty / 2 ) * PI / 180 + ( 67.5 * PI / 180 )
....sIBL_Feedback being the nurbs sphere.
Instead of going through the hassle and setting up everything by hand,
you might want to look into this.
Hope this somewhat helps.
Best,
Eugen
------ Originalnachricht ------
Von: "olivier jeannel" <olivier.jean...@noos.fr>
An: softimage@listproc.autodesk.com
Gesendet: 09.01.2014 12:54:26
Betreff: Re: Linking a light (Sun) to a Physical sky ?
Bump...
So nobody has a method ?
Le 08/01/2014 16:32, olivier jeannel a écrit :
Very dumb question, I did it before, I'm sure...
How do I link a light (infinite - sun) rotation to a vector (Sun
direction) in a Physicla sky property page ? (So that my light is a
sun...)
I'm in redshift...
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