You also have to remember that there's only so much you can bend a real
fiber optic line before the light will escape out.  Mabye your tube is bent
too much in the IOR only test?

Andrew Wilcox

> Didn't work. Refraction alone doesn't seem to guide the light rays well
> enough, or simply not in the way intended. Which is, the inner core has a
> higher IOR than an outer layer. I won't bother to post the image file,
same
> as other without the smudge of red light.
>
>

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