No rendering on the other side of glass? check this out?

John Sutherland wrote:

Very odd.. Why do my renders not render any object apart from the floor
on the otherside of the stained glass on my Chapter house? There is
definitely a second side to the chapter house there! For some reason it
doesn't render it through glass? Any Idea what the problem is? Check out
the picture.

https://www.bris.ac.uk/fluff/u/js0754/3wonqQ8hLm8qJhhmUSMi1Q7y/sideexter
nal2-h.jpg

No problem with that rendering. Just an expectation-mismatch.
What you see in the window is not the "other side", but rather
the reflection of the scene behind you. The interior is much
too dark in comparison to be visible.

-schorsch

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

Rob Guglielmetti wrote:

John Sutherland wrote:

> Ahhhh ok, makes sense?.. this is not what I was expecting. As the inside
> is dark, and so is the glass, I was expecting the glass not to reflect
> much light? What properties do I need to play with to get what I was
> expecting, ie darker looking glass from the outside, not reflecting
> much? You must know what I mean, like stainglass on churches, its very
> murky from outside, definetly cant see much reflection in it?

If you're using trans for the glass, you could give it some roughness;
that would help. I think there's also a .cal file that simulates a
dirty surface? Both things would help your cause. Right now you have a
mirror-smooth surface there, which I believe is causing your problem there.

You could simply make the reflected component diffuse, which
is probably quite appropriate for this kind of glazing.
Especially on the outside, the appearance is usually
determined by dirt...

-schorsch

···

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