[Radiance-general] Radiance, objline, objpict etc..

[Thomas Bleicher]

On 26 Jan 2008, at 18:50, steve michel wrote:

>
> Rob,
>
> The fixture is a recessed fluorescent with a flat translucent lens;

Being recessed the fixture will have no uplight component. Did you
check the orientation the IES file will have in the scene? Typically
major output direction will point downwards (-z). For a downlight you
should not need any rotation, just lift (xform -t) the *.rad file to
the right height and place in your scene.

> therefore my needs are simply to show a glow for the lens on the same
> plane as the ceiling. I applied the ies distribution to a simple  
> polygon.

Did you create the polygon yourself? Ies2rad (without -i option!) will
do that and you don't need any further polygons. They will only  
interfere
with you're distribution. The only problem is that the polygon will have
the size of the luminous area not the of the actual fitting.


Regards,
Thomas