Re: [Brad] Help:Setting up a radiance system--brad

[steve michel]

I used the ies2rad utility and with getbbox on the generated rad file, I get  bounding box dimensions that don't correspond to the lamp geometry. For example a fixture with a T8 lamp returns a getbbox dimension of .1,.1,.1 (xyz). The ies file I used includes mgf data and a  .dxf file was generated (via ies2rad or brad). Is there a way to confirm the fixture/lamp scale and preview it???

 

And in general, should the lamps loaded via brad's libraries appear as lamps or geometric emitting objects? Eg.

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>
> > 3/ this issue is probably trivial for experienced users: SCALING of lights
> >
> > If I insert a radiance ies light into a blender scene, how do I check that
> > the relative scales of blender objects AND radiance lights coincide????? A
> > room 10x 10 units in blender with an inserted light fixture from radiance
> > libraries might might too small or too big..does anyone know of this and/or
> > can explain???
>
>Just make sure that you use units consistently in your file.
>For instance I always use metres.
>So if I get a model in millimetres, I scale it down with a .001 factor.
>Then ies2rad by default outputs geometry and photometries using meters
>(-dm), so I have no problems.
>Perhaps you're trying to use the desktop radiance luminaires?
>They are in foot, if I remember well, so you must scale them
>appropriately, and redo the ies2rad run to get the photometries right.
>
>HTH,
>
>Francesco
>
>
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>
>
>
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