Subject:
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Re: some experiments with HDRI and PovRay
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Newsgroups:
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lugnet.cad.ray
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Date:
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Tue, 23 Mar 2004 07:50:36 GMT
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Viewed:
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2356 times
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> > I am shure that it is much better than radiosity, but the disadvantage is, that
> > animations in 3DSMAX arn't as easy as in Pov-Ray.
> >
> > Can somebody find out if it is possible to use that shader for gamersMAX, the
> > little&free brother of 3DSMAX?
>
>
> FULL STOP!!!!!
>
> sry for double-posting, but it IS possible to use HDRI in POV-Ray. You have to
> have MLPOV! (Patch for POv-Ray 3.5)
> Further information:
> http://pov.monde.free.fr/mael/mlpov083eng.html
>
> Don't ask me if they can be treated like normal POV-Files. I don't even have
> MLPov...
Hi Martin and all others who have asked...
you're right! You need a patched version of Povray that is called MLPov 0.83.
It looks like the normal povray you all know. But you now can use the needed
.hdr-files for luminance and you have some other advantages with this patched
version. I'm not sure about all new features because the documentation is in
french:-( So I have figured out everything I know with try & error. Because I
rendered my first picture on friday last week, it is not very much I know right
now.
As I said you need MLpov... the original archive has an example you can use with
your model. You have to copy two sections to your original .pov-file. The .pov
and the .hdr file have to be in the same folder!
You should delete all light sources in your .pov file or comment them out using
//.
You should do some experiments with the .hdr-parameters in your pov file. It can
look like this:
sphere {
0,1200
pigment { image_map { hdr "bigfogmap.hdr" once interpolate 2 map_type 1 }
}
finish { ambient 0.06 diffuse 0.1 }
hollow
}
The 0,1200 is the first thing you should work with. In easy words the .hdr-file
is a projection of a landscape or similar on a sphere. Your model and your
camera are inside this sphere.
You can find several free hdri lightprobes all over the net. There are
commercial lightprobes too. Take a look at hdrshop. That is a tool to modify
hdr-files. So go ahead now and create your pov-files as always and then create
some cool pictures with MLpov.
Have a nice day and sorry for my bad english...
Sven
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Message is in Reply To:
 | | Re: some experiments with HDRI and PovRay
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| (...) FULL STOP!!!!! sry for double-posting, but it IS possible to use HDRI in POV-Ray. You have to have MLPOV! (Patch for POv-Ray 3.5) Further information: (URL) ask me if they can be treated like normal POV-Files. I don't even have MLPov... (20 years ago, 22-Mar-04, to lugnet.cad.ray)
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