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 CAD / Ray-Tracing / 3033
    Re: How would you do it? —Kevin L. Clague
   (...) 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)
   
        Re: How would you do it? —Anders Isaksson
     (...) 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 (...) (13 years ago, 2-Jun-11, to lugnet.cad.ray)
    
         Re: How would you do it? —Larry Pieniazek
     (...) 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)  
    
         Re: How would you do it? —Anders Isaksson
     (...) Actually, the sum of *all* your lights should not be too much over <1,1,1> as some parts of the image may be saturated. I usually use 0.5-0.7 for the *brightest* light, and 0.1-0.3 for filler lights. Remember it's easy to modify light (...) (13 years ago, 2-Jun-11, to lugnet.cad.ray)
   
        Re: How would you do it? —Larry Pieniazek
   (...) I am considering using parallel instead of a light source that's very far away... I don't think Jeroen used "parallel" for his source(s) because the shadow angles are steeper in the foreground. (this will be less pronounced with light sources (...) (13 years ago, 2-Jun-11, to lugnet.cad.ray)
   
        Re: How would you do it? —Anders Isaksson
   (...) If I understand it correctly, 'ambient' is what you see if all lights are off. I usually turn this down very low (zero). 'Diffuse' is reflected light from other surfaces, you'd want quite a lot of that. (...) Yes, I think the default (...) (13 years ago, 2-Jun-11, to lugnet.cad.ray)
   
        Re: How would you do it? —Larry Pieniazek
   (...) Hi Anders! I sent a note requesting it to the address shown in your post, is it still correct? Mine is, so you can use that one to send it. I really like the way that image looks (as well as the next one in the Brickshelf gallery) so would be (...) (13 years ago, 3-Jun-11, to lugnet.cad.ray)
   
        Re: How would you do it? —Anders Isaksson
   (...) Received and replied with a zip of the .pov file and accompanying images. The settings for the brighter render is probably in the out-commented light settings in the .pov file (and without radiosity) - I don't know for sure, I fiddled so much (...) (13 years ago, 3-Jun-11, to lugnet.cad.ray)
 

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