posted in advanced users and was told to come here...
I am trying to create a simple laser. the scene is a plane and a sky sphere,
with scattering media to make the beam visible, a cylinder light with
parallel on(the blue beam), a mirrored box (at the top right where the beam
reflection is) and a small red box(for reference). my problem, is that the
beam seems to show itself from the source up to a point where it reaches the
shadow of the mirror and then it abruptly dissapears. the beams reflection
however seems to go right up to the surface of the mirror. note: when i
comment out the other light source(the one that isnt the beam) this problem
goes away but then the scattered light from the beam seems to not illuminate
anything at all. thanks for any help:)

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Hi. Replied at the other message thread. Add intervals 9 in the media
statement. It's supposed to be automatically adjusted, usually, so I'm not
sure if there's a problem or just happens to be one of those instances
requiring manual override.
Summed up, the other light source's shadow is falling across the beam and
interferring. The intervals keyword kind of sets up the media sampling with
lights in mind. It starts as 1 by default and should increase when needed to
be. Might be a problem with the beta but that would only be wild speculation
to say that.

bob h

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