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Hi!
This is a small "preview" I rendered last night. The picture still requires
some work. If someone has an idea, how I could create some moss or ivy on
the walls, please tell me! I asked a question regarding this in the
"newusers" group.
I think about replacing the walls by bushes or at least positioning the
trees in different places.. Maybe the right one more in the middle or
something like this.. What do you think about that?
Looking forward to comments,
frozen
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Attachments:
Download 'chess.gif' (121 KB)
Preview of image 'chess.gif'
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frozen wrote:
> Hi!
>
> This is a small "preview" I rendered last night. The picture still requires
> some work. If someone has an idea, how I could create some moss or ivy on
> the walls, please tell me! I asked a question regarding this in the
> "newusers" group.
>
> I think about replacing the walls by bushes or at least positioning the
> trees in different places.. Maybe the right one more in the middle or
> something like this.. What do you think about that?
>
> Looking forward to comments,
>
> frozen
>
>
> ------------------------------------------------------------------------
>
Hello
I think you better keep the walls for the ambiance...
It seem's that you don't use radiosity, or the settings aren't accurate
enough ? I think that can resolve the "problem" of the (very) dark
shadows on the right part of the image...
But that looks interresting for this time ;-)
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First: Thanks for your comment!
LightBeam <s.f### [at] tiscali fr> wrote:
> Hello
> I think you better keep the walls for the ambiance...
Okay...
> It seem's that you don't use radiosity, or the settings aren't accurate
> enough ? I think that can resolve the "problem" of the (very) dark
> shadows on the right part of the image...
> But that looks interresting for this time ;-)
Yes, no radiosity was used for this picture. No photons where shot. This
preview rendering as you see it there (except that I converted it to gif)
took 8 hours and 45 minutes on my athlon 1800+ system! Even though it is
really small (only 512*384 pixel)! I guess, that it will take much longer
with radiosity and photons...
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What program did you use for your trees?
As a side note, I recommend you use jpeg insted of gif. Gif has a 256
color limit that sucks for this kind of images.
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"Fernando G. del Cueto" <fcu### [at] riceedu> wrote:
> What program did you use for your trees?
POV-Tree 1.5b by Gena Obukhov which uses the tree algorithm from Tom Aust
>
> As a side note, I recommend you use jpeg insted of gif. Gif has a 256
> color limit that sucks for this kind of images.
Okay, thanks! I forgot about the color limit... I will attach a PNG-version.
Post a reply to this message
Attachments:
Download 'chess.png' (332 KB)
Preview of image 'chess.png'
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> Yes, no radiosity was used for this picture. No photons where shot. This
> preview rendering as you see it there (except that I converted it to gif)
> took 8 hours and 45 minutes on my athlon 1800+ system! Even though it is
> really small (only 512*384 pixel)! I guess, that it will take much longer
> with radiosity and photons...
Well, photons only make sense if you need actual light reflection or
refraction. To avoid radiosity, why not google a little about three point
lighting? Two shadowless lightsources with lower values than your average
lightsource with shadows might do a good enough job to get rid of that
utterly black areas. You'd also have some control that way.
Regards,
Tim
PS: I'm in a haste, otherwise I'd elaborate a little more on the lighting
technique. Perhaps a fellow Pover might come to my aid... :-)
--
"Tim Nikias v2.0"
Homepage: <http://www.nolights.de>
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"Tim Nikias" <JUSTTHELOWERCASE:timISNOTnikias(at)gmx.netWARE> wrote:
> Well, photons only make sense if you need actual light reflection or
> refraction. To avoid radiosity, why not google a little about three point
> lighting? Two shadowless lightsources with lower values than your average
> lightsource with shadows might do a good enough job to get rid of that
> utterly black areas. You'd also have some control that way.
>
> Regards,
> Tim
Thank you, Tim! I googled a bit but I ain't sure, if three point lighting is
what i want in this scene.. I am a bit afraid, that more than one light
source would let the image look too artificial like most of the pictures I
saw as examples for this technique.
I guess I will use radiosity and just accept, that it renders 3 days.. ;-)
Regards,
frozen
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"frozen" <fro### [at] thefrozenno-ipcom> wrote in message
news:web.414b28be90d95b221fc26f130@news.povray.org...
> "Fernando G. del Cueto" <fcu### [at] riceedu> wrote:
>> What program did you use for your trees?
>
> POV-Tree 1.5b by Gena Obukhov which uses the tree algorithm from Tom Aust
>
>>
>> As a side note, I recommend you use jpeg insted of gif. Gif has a 256
>> color limit that sucks for this kind of images.
>
> Okay, thanks! I forgot about the color limit... I will attach a
> PNG-version.
>
>
I really like your idea for this scene! :-) Personally, I like the walls,
but if you want to break it up a little, you could also add a door. Just a
thought.
The blades of grass seem a little bit large and/or thick. I would try
making them a little bit thinner (less wide), and maybe a little shorter.
But again, that's up to you.
Referring to your response to Tim's post, it seems strange (to me) that this
scene would take 8 hours to render on an Athlon 1800+ without any radiosity.
Do you happen to have any complex (or somewhat complex) "difference"
operations being performed on the walls? Other than that, things like
area_lights and focal blur would slow down a render, but it doesn't appear
that you're using either of those. If the walls are isosurfaces, that could
also slow things down (not that iso-surfaces are a bad idea).
Also, make sure you have Gena's modified version of TomTree
(http://propro.ru/go/Wshop/povtree/tomtree-1.5.zip). It speeds up tree
creation by quite a bit.
If you're relatively new to using radiosity, it's as simple as adding a
couple lines of code to the global_settings section:
ambient_light off //optional, but generally recommended for a scene like
this
radiosity {count 100} // higher counts mean slower renders
Tweaking can always be done later. I'm not sure what your current
skill-level is, so I'm sorry if I'm oversimplifying something. Radiosity is
very difficult to master, but POV-Ray has an excellent tutorial on it.
I really like this scene though. I'll be quite interested in seeing the
final outcome. Post it here when you're done! I hope my suggestions have
been helpful.
(Also, JPEG is the preferred method for posting here, simply because not
everyone has broadband, I assume.)
--
Jeremy
www.beantoad.com
--------------------------------------------------------------------------------
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"Jeremy M. Praay" <sla### [at] hotmailcom> wrote:
> I really like your idea for this scene! :-) Personally, I like the walls,
> but if you want to break it up a little, you could also add a door. Just a
> thought.
Thanks a lot! I thought about using a door or window. But this would mean
that I would have to do a landscape behind it.. And it renders slow enough
without.. ;-)
> The blades of grass seem a little bit large and/or thick. I would try
> making them a little bit thinner (less wide), and maybe a little shorter.
> But again, that's up to you.
I had a photo as reference. This rather large and thick type of grass exists
and so I think, I will not change it.
> Referring to your response to Tim's post, it seems strange (to me) that this
> scene would take 8 hours to render on an Athlon 1800+ without any radiosity.
I started a "full render" with radiosity at 800x600 pixel. It is rendering
15:45 now and reached only 37%...
> Do you happen to have any complex (or somewhat complex) "difference"
> operations being performed on the walls?
No. The walls are created by a macro from Steven Pigeon. As far as I looked
at it, he uses superellipsoids to create the bricks.
> Other than that, things like
> area_lights and focal blur would slow down a render, but it doesn't appear
> that you're using either of those. If the walls are isosurfaces, that could
> also slow things down (not that iso-surfaces are a bad idea).
I don't use any of these features.
> Also, make sure you have Gena's modified version of TomTree
> (http://propro.ru/go/Wshop/povtree/tomtree-1.5.zip). It speeds up tree
> creation by quite a bit.
I use this edited version..
> If you're relatively new to using radiosity, it's as simple as adding a
> couple lines of code to the global_settings section:
> ambient_light off //optional, but generally recommended for a scene like
> this
> radiosity {count 100} // higher counts mean slower renders
I used the radiosity block from the insert menu. count is 35... Please don't
say, that I need to set to 100! ;-)
> Tweaking can always be done later. I'm not sure what your current
> skill-level is, so I'm sorry if I'm oversimplifying something. Radiosity is
> very difficult to master, but POV-Ray has an excellent tutorial on it.
I am new to povray. I used it sometimes in the last years but never was able
to get good results. This picture is the best work I ever did..
> I really like this scene though. I'll be quite interested in seeing the
> final outcome. Post it here when you're done! I hope my suggestions have
> been helpful.
Thank you a lot! I will post it, if my machine doesn't crash before it is
done.. ;-) If the result ain't what I wanted, your suggestions will
definitely proof very helpful!
> (Also, JPEG is the preferred method for posting here, simply because not
> everyone has broadband, I assume.)
I don't like the jpeg-artifacts but I will post jpegs from now on!
Regards,
frozen
Post a reply to this message
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frozen wrote:
> Hi!
>
> This is a small "preview" I rendered last night. The picture still requires
> some work. If someone has an idea, how I could create some moss or ivy on
> the walls, please tell me! I asked a question regarding this in the
> "newusers" group.
>
> I think about replacing the walls by bushes or at least positioning the
> trees in different places.. Maybe the right one more in the middle or
> something like this.. What do you think about that?
>
> Looking forward to comments,
>
> frozen
>
>
> ------------------------------------------------------------------------
>
Very promising first post. Technically accomplished. For me the main
stopping point is a relatively minor thing, the grass. What you have
just doesn't correspond to anything familiar to me. The rest is quite
believable.
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