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Hi all,
I am a bit at a loss with this. You possibly noticed like me that it is
difficult to find correct radiosity settings for Poser figures, especially
when they are in shadow. It is difficult to give an example as it much
depends on scene, lighting, etc, but in general I have the impression that -
even when the rest of the scene looks right - still the figures show
disturbing artifacts, even after using really good settings slowing down the
render to disproportionate levels.
Does anyone have a tip about this? That would be highly appreciated indeed!
Thomas
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news: 461ba166$1@news.povray.org...
> Does anyone have a tip about this?
Use Photoshop/Gimp/whatever to smooth out the artifacts... :(
Sorry I don't have a better tip, but that's what I always ended up doing,
except for the IRTC of course (but then the characters were small so the
artifacts weren't very visible). POV-Ray always had some bizarre
mesh-related issues (and not just with radiosity).
G.
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Hi Thomas, I wish I could help. Can't you give one example? I haven't
noticed this problem at all. This is probably really obvious, but Pose-Ray
materials usually have a finish with: ambient rgb <0,0,0> reflection{0
metallic}. So, I don't know if that might be quite different from other
finish statements in the scene??? What's the crease angle set at in
Pose-Ray when you import your model? Maybe it needs to be higher?? Oh well,
I can agree with Gilles' solution too. :) Sometimes you gotta do that just
because the models aren't perfect, especially if you pose them certain
ways.
Janet
"Thomas de Groot" <t.d### [at] inter nlDOTnet> wrote:
> Hi all,
>
> I am a bit at a loss with this. You possibly noticed like me that it is
> difficult to find correct radiosity settings for Poser figures, especially
> when they are in shadow. It is difficult to give an example as it much
> depends on scene, lighting, etc, but in general I have the impression that -
> even when the rest of the scene looks right - still the figures show
> disturbing artifacts, even after using really good settings slowing down the
> render to disproportionate levels.
>
> Does anyone have a tip about this? That would be highly appreciated indeed!
>
> Thomas
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"Gilles Tran" <gitran_nospam_@wanadoo.fr> schreef in bericht
news:461bb28f$1@news.povray.org...
>
> Use Photoshop/Gimp/whatever to smooth out the artifacts... :(
> Sorry I don't have a better tip, but that's what I always ended up doing,
> except for the IRTC of course (but then the characters were small so the
> artifacts weren't very visible). POV-Ray always had some bizarre
> mesh-related issues (and not just with radiosity).
>
Merci Gilles!
Hmm... I was 'afraid' I would end up with this finally. I had not thought
about the mesh-related issues. Where Poser figures become important
forefront characters, this is going to be a real problem. Alright, I'll see
what I can do. For the time being, I opted for not using radiosity but a
couple of feeble fill-in lights instead. That works fine but does not bring
the overall quality of radiosity. I have to think about what Janet says
too....
Thomas
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"Janet" <par### [at] attnet> schreef in bericht
news:web.461c565aafd59be06a94621d0@news.povray.org...
> Hi Thomas, I wish I could help. Can't you give one example? I haven't
> noticed this problem at all. This is probably really obvious, but Pose-Ray
> materials usually have a finish with: ambient rgb <0,0,0> reflection{0
> metallic}. So, I don't know if that might be quite different from other
> finish statements in the scene??? What's the crease angle set at in
> Pose-Ray when you import your model? Maybe it needs to be higher?? Oh
> well,
> I can agree with Gilles' solution too. :) Sometimes you gotta do that just
> because the models aren't perfect, especially if you pose them certain
> ways.
>
Thanks indeed, Janet.
I probably shal come up with an example later on as I intend to do a bit of
thorough testing, time allowing...
The finish statements are not really different from the rest of the scene,
especially as I heavily edit the Poseray material file, getting rid of most
of the redundant stuff.
You make me think about some test to do with the finish, though. I shall
report back!
Thomas
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OK. Nothing really world rocking so far, but at least I found out that the
best settings to be used for Poser figures - in shade or in sunshine - is:
radiosity { Rad_Settings(Radiosity_OutdoorHQ,off,off) }
The bad news of course is that the render is pretty slow, but with
patience...
Thomas
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Hi Thomas,
in addition to the things already mentioned:
for poser figures with radiosity that are NOT very close or
dominant in the screen I do the following:
avoid the usage of transmapped hair, use solid hair caps
(like the poser 4 hair styles which will - with a little fiddling
around - also fit the Mike, Vicky and Aiko figures)
remove the transmapped eyelashes or dial them
VERY short and use them with a solid color.
avoid any transmapped dresses
do not use the (realistic, transparent and reflective) cornea
but simply use the eye image_map on the cornea and remove
the eyeball, iris and pupil.
and well, if the figure is too close so the above mentioned will
not work I use insane radiosity settings like count 1600
with error_bound 0.3 and wait a for many days...
-Ive
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"Ive" <ive### [at] lilysoftcom> schreef in bericht news:4623ac0c@news.povray.org...
> Hi Thomas,
>
> in addition to the things already mentioned:
>
> for poser figures with radiosity that are NOT very close or
> dominant in the screen I do the following:
>
> avoid the usage of transmapped hair, use solid hair caps
> (like the poser 4 hair styles which will - with a little fiddling
> around - also fit the Mike, Vicky and Aiko figures)
>
> remove the transmapped eyelashes or dial them
> VERY short and use them with a solid color.
>
> avoid any transmapped dresses
>
> do not use the (realistic, transparent and reflective) cornea
> but simply use the eye image_map on the cornea and remove
> the eyeball, iris and pupil.
>
>
> and well, if the figure is too close so the above mentioned will
> not work I use insane radiosity settings like count 1600
> with error_bound 0.3 and wait a for many days...
>
Thank you Ive! Some of your recommendations I have not used indeed, others
were. What I mainly see are artifacts on the skin! And that is more
difficult to get rid of, despite slimplifying the texture to the utmost. I
found however, that it may help to have a little shadowless light to
brighten up the shadows a tiny bit.
Thomas
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I render Poser figs in Pov all the time. Use Povman as an online aquaintance
and I have hacked Matt Pahrr's famous Renderman skin shader to, what I
think, is good result.I'd post my pics here more often, but they're often
nudes and I'm not sure how they'd be received here, but I would happily
exchange tips and tricks.
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