Subject:
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Re: Transparent colors in POV-Ray
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sat, 13 Jun 2009 19:11:11 GMT
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Viewed:
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11693 times
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In lugnet.cad.ray, Roland Melkert wrote:
> In lugnet.cad.ray, Anders Isaksson wrote:
> > Roland Melkert wrote:
> > >
> > > The thing is you can't clearly see through it, but if I increast the
> > > 't' value of the pigment it seems like part loses it's own color
> > > (e.g. red transparent renders blue if surrounding parts are blue). I
> > > think I'm just not 'getting' the whole rgbft meaning or something.
> >
> > Try dropping the 'ambient' part. This is how my transparent 'christmas
> > lights' are defined:
> >
> > #declare Color46_t = texture {
> > pigment { rgbf <1,0.905882,0.211765,0.85> }
> > finish { ambient 0.0 diffuse 1.0 phong 0.5 phong_size 40 reflection 0.6
> > refraction 1 ior 1.25 }
> > }
> >
> > http://web.telia.com/~u16122508/merry.htm#raytrace
>
> Thanks,
>
> I've been experimenting and discovered trans blue is just by nature very dark,
> so I replaced it by trans white in the animation I was working on (The
> "Experiment" sample of LD4DStudio.).
>
> I'm now using:
>
> //----Texture for LDraw color 47 "clear"
> #declare color47 = texture {
> pigment {
> rgbft <1.0000, 1.0000, 1.0000, 0.9000, 0.0500>
> }
>
> normal {
> bumps 0.0100
> scale 0.5000
> turbulence 0.0000
> }
>
> finish {
> ambient rgb <0.1000, 0.1000, 0.1000>
> diffuse 1.0000
> brilliance 1.0000
> conserve_energy
> ior 1.2000
>
> phong 0.5000
> phong_size 40.0000
> metallic 0.0000
>
> reflection {
> rgb <0.0800, 0.0800, 0.0800>
> falloff 1.0000
> exponent 1.0000
> metallic 0.0000
> }
> }
> }
>
> But I'm still not happy with it, take a look at this animated gif for example. I
> don't like those black (flickering) edges around the window.
>
> http://www.ld4dstudio.nl/img/ld4d/technicCarPV.gif
>
> But for now it has to do, because all this fiddling delays me from releasing the
> 1.1 version.
>
> Maybe when the 1.1 version is available some POV-Ray guru could take a look at
> the (fully customizable) color definitions.
When do you think 1.1 is available????? I am waiting for film export!!!
Ok, I think your problem can't be solved because the surfaces meet exactly the
same plane. So the renderer has to decide which color to take. As both are
exactly the same I think it is randomize which color.
But I am not a POV-Ray guru. I might be wrong.
cu
mikeheide
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Message has 2 Replies:
 | | Re: Transparent colors in POV-Ray
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| (...) I'm working on some last bugs, the installer and a final sample, every thing else is done. So if the application 'survives' during this last sample I will release it this week. Roland (15 years ago, 13-Jun-09, to lugnet.cad.ray)
| | | Re: Transparent colors in POV-Ray
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| (...) Probably first-come, first-served which is essentially random as far as the user is concerned. As an idea you might be able to work around the problem by shrinking all studs in the completed model. Shrinking them by a couple of percent would (...) (15 years ago, 14-Jun-09, to lugnet.cad.ray)
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Message is in Reply To:
| | Re: Transparent colors in POV-Ray
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| (...) so I replaced it by trans white in the animation I was working on (The "Experiment" sample of LD4DStudio.). I'm now using: //----Texture for LDraw color 47 "clear" #declare color47 = texture { pigment { rgbft <1.0000, 1.0000, 1.0000, 0.9000, (...) (15 years ago, 13-Jun-09, to lugnet.cad.ray)
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