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 CAD / Ray-Tracing / 2097
2096  |  2098
Subject: 
Re: More color problems
Newsgroups: 
lugnet.cad.ray
Date: 
Fri, 6 Feb 2004 01:37:24 GMT
Viewed: 
1609 times
  
In lugnet.cad.ray, Mike Thorn wrote:
In lugnet.cad.ray, Orion Pobursky wrote:
reflections since both color library option 1 and option 2 override this.  You
can, however, set the idex of refraction lower.  The lower the value for this
number, the less shiny you brick will render.

Well, I tried that and it did make the bricks a bit duller. However, it didn't
fix the problem:

I don't know POV, but I do know that index of refraction (IoR) shouldn't have
any effect on reflections.  Perhaps it does, but it shouldn't.  You need do
decrease the reflectivity, not the IoR.  The IoR controls how much light bends
when it enters a transparent material.

I don't know how to change the reflectivity in POV, but a search for "reflect"
in the file might prove enlightening.

--Travis Cobbs



Message has 2 Replies:
  Re: More color problems
 
(...) You're right, I was mistaken. The IOR deals with the transparency. -Orion (21 years ago, 6-Feb-04, to lugnet.cad.ray)
  Re: More color problems
 
(...) Which makes sense when you compare the two renders and notice that the second one (with the IoR at zero) has a much more crystal-like sceptre. I don't know how much of an L3P-produced POV file is original POV code and how much is (...) (21 years ago, 6-Feb-04, to lugnet.cad.ray)

Message is in Reply To:
  Re: More color problems
 
(...) The first problem is that I don't know where to get those, and I've never figured out whether they're included with the radiosity stuff...are they? (...) The problem is that the sky sphere still creates shadows. :( (...) Well, I tried that and (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray)

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