[Radiance-general] Lighting from a light probe

[Tarik Rahman]

Yes I see what you mean. I am doing it as a test though, using the angular
projection. Slipped my mind, of course HDRShop wouldn't be looking at the view
parameters in a .pic file.


Quoting Greg Ward <gregoryjward at gmail.com>:

> There's something I'm not getting, here.  Why would you synthesize a
> light probe?  The whole point is to use a captured environment, isn't
> it?  If you had a good synthetic environment, you would just render
> your synthetic object(s) into it directly.  Or are you doing this as a
> test?  I would be surprised if HDRShop paid attention to the Radiance
> view parameters in the .pic file, as it's not expecting to read a
> Radiance rendering as a light probe.
>
> By the way, there are two types of spherical projections used in
> HDRShop -- an angular projection and a spherical projection.  They are
> subtly different.
>
> -Greg
>
> > From: Tarik Rahman <tarik.rahman at ed.ac.uk>
> > Date: January 27, 2005 9:02:08 AM PST
> >
> > Yeah I'm pretty sure it's the spherical light probe that the code is
> > for. I
> > don't know if it matters what the up vector, azimuth and elevation
> > angles are
> > from the .pic file and because I think HDRShop reads the view
> > parameters and
> > converts it to a .hdr light probe correctly.
>
>
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--
Tarik Rahman
PhD student, Institute of Perception, Action and Behaviour
School of Informatics
University of Edinburgh