[Radiance-general] RE: Luminaire octree

[Georg Mischler]

Zack Rogers wrote:

> >But then, I'm not sure which surface in your example is supposed
> >to serve as an emitter, so it may be too tricky for the builtin
> >mechanism to handle it correctly. Is that the reason why you're
> >trying the manual approach?
> >
> I am using Rayfront for most of this, I just go into the files when
> needed, ie. to take out the sky when creating the lum geom octree.  I
> tried, within Rayfront (my 2nd attempt), to have 4 markers for each of
> the ies files + 1 marker for lum_geom (overlap between octree bounding
> and ies cubes) and did not get any light output.

It might be easier to treat the geometry for each unit individually
as well (even if that means you need to handle the pole seperately).
If you do this, then Rayfront can position the luminaire geometry
for you, relative to the position of the IES curve.
As I understand by now, the emitting surface is a virtual bounding
box. Rayfront can create that for you as well.

If it works at all (eg. if there's no issue about intersecting
bounding boxes), then it should be possible to get the desired
effect within or without Rayfront. As all of Rayfront, I tried
to design this part so that it would make it easier to handle
than the manual method. Now we'll find out whether that actually
turns out to be the case...


-schorsch

-- 
Georg Mischler  --  simulations developer  --  schorsch at schorsch com
+schorsch.com+  --  lighting design tools  --  http://www.schorsch.com/