Subject:
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Re: Modeling the magnifying glass in POV-Ray
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Newsgroups:
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lugnet.cad
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Date:
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Sun, 28 Feb 1999 20:09:18 GMT
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Viewed:
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942 times
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Fredrik Glöckner wrote in message ...
> I've given this a try now. I haven't actually modeled the LEGO
> magnifying glass, because I don't have it in front of me, and I don't
> want to start a new flame war.
>
> Seriously, though, I just made a simple lens in POV-Ray. Here's the
> code I used:
>
> --begin--
> object{
> union{
> union{sphere {<-40,0,0>, 50 clipped_by{box{<0,-50,-50>,<10,50,50>}}}
> sphere {<40,0,0>, 50 clipped_by{box{<-10,50,50>,<0,-50,-50>}}}
> pigment{rgb <1,1,1> filter 1} finish {refraction 1 ior 1.15}}
> torus{30,2 rotate <0,0,90> pigment{rgb <0,0,0>}}}
> translate <220,0,0>
> rotate <0,0,-20>
> rotate <0,-30,0>
> translate <0,-60,0>
> }
> --end--
It's a cool idea, quite a cute effect. Is there some advantage to using
the clipped spheres as opposed to a straight intersection?
e.g.
intersection
{
sphere {<-40,0,0>, 50 }
sphere {<40,0,0>, 50 }
pigment{rgb <1,1,1> filter 1} finish {refraction 1 ior 1.15}}
}
Are intersections slow in POV? or does it introduce some strange visual
artifacts?
Tim
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Message has 2 Replies:
 | | Re: Modeling the magnifying glass in POV-Ray
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| (...) Duh, probably not! I'm new to POV-Ray, so I just used the first technique I could find suitable... Intersections looks a lot more simple. Thanks for the input. By the way, the scene gets even more cute by adding reflections to the surface of (...) (25 years ago, 1-Mar-99, to lugnet.cad)
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Message is in Reply To:
| | Re: Modeling the magnifying glass in POV-Ray
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| I've given this a try now. I haven't actually modeled the LEGO magnifying glass, because I don't have it in front of me, and I don't want to start a new flame war. Seriously, though, I just made a simple lens in POV-Ray. Here's the code I used: (...) (25 years ago, 28-Feb-99, to lugnet.cad)
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