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Simple Question. Hopefully someone can save me testing this.
Does a Normal on a glass surface bend the light?
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Josh wrote:
> Simple Question. Hopefully someone can save me testing this.
>
> Does a Normal on a glass surface bend the light?
The testing would take about 30 secs, but the answer is yes, if I
interprete your question correctly.
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> Does a Normal on a glass surface bend the light?
If the glass has an index of refraction set
interior {
ior 1.33
}
then yes, though a normal block is not necessary to make the surface as it
is refract light.
- Slime
[ http://www.slimeland.com/ ]
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Slime <fak### [at] email address> wrote:
> interior {
> ior 1.33
> }
Glass ior is about 1.5, btw.
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
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> Glass ior is about 1.5, btw.
Oh, I was thinking water for some reason. As in, a glass of water. =)
- Slime
[ http://www.slimeland.com/ ]
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Dear Chaps,
You have mis-taken my meaning.
I meant , does the normal bend the light?
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"Josh" <som### [at] microsoftcom> wrote in message
news:41173752$1@news.povray.org...
>
> I meant , does the normal bend the light?
Yes, does. Whenever 'ior' exists, the rays that are traced are changed as
they pass through the surface and with a normal applied those rays follow a
perturbed surface based on the pattern and amount of depth used. This won't
be seen, except by direct visual appearance of other things through the
object with the glass material; unless caustics or photons are also applied,
in which case, a visible "light" pattern may be seen cast onto other
surrounding objects.
The previous answers meant "yes", it does, when refractive first via
'interior {ior GreaterThanOneValueHere}', regardless of normal statement,
and then any 'normal' pattern used will affect that refraction (also
reflections). But it seems you might have been wanting to know if the light
rays become transmitted, via such a pattern, into a visible light. That's
where I, or anyone else, would be guessing what you really wanted to know. A
situation of too little info or too much.
Well... so there's my lengthy answer. :-)
Bob H.
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You guys... theres just never enough thanks to go around.
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Josh <som### [at] microsoftcom> wrote:
> I meant , does the normal bend the light?
I think you should explain what you mean by that.
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
Post a reply to this message
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