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 CAD / Ray-Tracing / 3035
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Subject: 
Re: How would you do it?
Newsgroups: 
lugnet.cad.ray
Date: 
Thu, 2 Jun 2011 14:32:42 GMT
Viewed: 
21130 times
  
Kevin L. Clague wrote:
I'm not much of a POV expert, but it looks to me like Jeroen used a
single light source (I only see one shadow per model).

You can use many lights, and still have a single shadow by making all lights
but one 'shadowless' (a modifier to the POV light description). I often put
a (not too bright) shadowless light at the same position as the camera, to
make sure there's at least *some* light into all the cavities you can see.

--
Anders Isaksson



Message has 1 Reply:
  Re: How would you do it?
 
(...) How bright is "not too bright"? These lights don't obey the r**2 law like real lights do, right? I noticed that if I have several rgb<1,1,1> lights the scene seems "overilluminated" Do you use .5 or so for the not too bright ones? (13 years ago, 2-Jun-11, to lugnet.cad.ray)  

Message is in Reply To:
  Re: How would you do it?
 
(...) Hi Larry, I'm not much of a POV expert, but it looks to me like Jeroen used a single light source (I only see one shadow per model). I'd guess the light source is very far away (to simulate sunlight) because all the shadows cast proportionate (...) (13 years ago, 2-Jun-11, to lugnet.cad.ray)

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