"StephenS" <nomail@nomail> wrote in message 
news:web.4a8859323e39793b37d670520@news.povray.org...
> "gil" <nomail@nomail> wrote:
>> Having a requirement for ropes in my project, I sprang with delight on 
>> the Rope
>> macros. However, whether I use the supplied rope.pov, or incorporate the
>> examples in my own pov file, the ropes are almost invisible. On close
>> inspection, they appear to be composed of coloured flecks, which may be 
>> the
>> fibre highlights, but the substance of the ropes appears transparent. I 
>> am
>> using povRay 3.6.
>>

It's worth checking the max_trace_level. If you're getting the message 
"max_trace_level exceeded" in the message stream then it's that. If it's 
that then adding:
  global_settings { max_trace_level 10}
into the scene file should fix it.

In 3.6 it requires an increased max_trace_level if Rope_ShowFibres is set to 
1 (which is the default). In 3.7 it doesn't. This is because this option 
adds a sort of semi-transparent shell around the outside of the rope with 
the fibre texture on it. In 3.6 this is counted as multiple additional trace 
levels, but it doesn't get counted in 3.7.

Regards,
Chris B.

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