POV-Ray and photorealism
Marco
possible with POV?
ciao!
Marco
Francois Labreque
Program ended abnormally on 5/29/03 5:15 PM, Due to a catastrophic Marco
error:
> I am making a watch with POV, but I can't make it look realistic. Is photorealism
> possible with POV?
>
Yes. You need to be *really* good at lighting and texturing, though. :(
See, for example:
http://www.oyonale.com/histoire/images/hdr_lego_1.jpg
http://www.oyonale.com/histoire/images/hdr_glass_1.jpg
(The above two images were done with a pacthed version of POV, btw.)
Or:
http://www.ignorancia.org/images/boltstill3.jpg
http://www.ignorancia.org/images/balanza.jpg
And finally, their collaborative masterpiece:
http://www.oyonale.com/iss/english/index.htm
Both sites will also give you tips, tricks and downloadable macros that you can
use to perfect you images.
--
Francois Labreque | The surest sign of the existence of extra-
flabreque | terrestrial intelligence is that they never
@ | bothered to come down here and visit us!
videotron.ca | - Calvin
Matt Giwer
> I am making a watch with POV, but I can't make it look realistic. Is photorealism
> possible with POV?
Once you realize a photo is not very realistic certainly it is. If you
are after exactly as you see it in real life that is impossible as it is
on a CRT not in front of your eyes. Which means you are throwing away
binocular vision as a minimum.
If you mean realistic textures, what do you mean by realistic? Can you
duplicate what you see in reality or can you make in reality what you
have created in povray?
I do not mean to be glib in that but the question is simplitic as is
any answer.
It is possible to make things look like they may have been photographed
and in particular with animations. Things will look cartoonish without
great effort with the modeling. And that will result in rendering times
that the individual may not have to explore and discard the unrealistic
ones and find the realistic ones. It is unlikely a single individual
will have the time, processing power and skill to do it all. A few have
gotten close one way or another.
--
2003 May 07: Israel murders three Palestinians.
-- The Iron Webmaster, 2668
Rick [Kitty5]
> I am making a watch with POV, but I can't make it look realistic. Is
> photorealism possible with POV?
Yes it is, as with everything, the devil is in the detail (esp the lighting)
One of my more photorealistic renders
http://www.kitty5.com/portfolio/3d/3com.asp
--
Rick
Kitty5 NewMedia http://Kitty5.co.uk
POV-Ray News & Resources http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
Matt Giwer
> Marco wrote:
>
>>I am making a watch with POV, but I can't make it look realistic. Is
>>photorealism possible with POV?
>
>
> Yes it is, as with everything, the devil is in the detail (esp the lighting)
>
> One of my more photorealistic renders
> http://www.kitty5.com/portfolio/3d/3com.asp
And that is what I am saying. Could that be an actual photo? Look at
the surface of the chip and ask why a manufacturer would have spots of
lighter color on it.
Now if I take a real photo and process the hell out of it I might be
able to get those spots. But I have never seen a chip with spots so that
is NOT photorealistic.
Photorealistic means a fake is as hard to detect as the usual Photoshop
fake. Your spotted chip is clearly a fake.
--
Hodie pridie Kalendas Iunias MMIII est
-- The Ferric Webceasar
Jonathan Rafael Ghiglia
Yes, photorealism is possible and not that hard after all.
Shameless plug:
-you talked about a watch, here's mine:
http://news.povray.org/povray.binaries.images/29468/
-a coffee pot (not that realistic...):
http://news.povray.org/povray.binaries.images/29029/
-a kitchen (still a WIP): http://news.povray.org/povray.binaries.images/28966/
Ciao!
--
Jonathan
bugbear
> I am making a watch with POV, but I can't make it look realistic. Is photorealism
> possible with POV?
At the risk of hijacking this thread, I'm after a (particular)
NON-realistic look (which should be easier, I hope).
I attempting to make some instructional renderings
to do with the shape of hand saw sharpening, and teeth shapes.
An update of this kind of thing
http://www.disstonianinstitute.com/sawfiling1.html
I have the
geometrical part of the project (which is rather simple)
more or less down pat, but the aesthetics and clarity suck.
The look, both in excellence of presentation and period
style that I want it show on a graphic hung off my
geocities website
http://www.geocities.com/plybench/
Click on the thumbnail labelled
"Milling cutter I like the appearance of"
and you'll get the high res (*)
How do I persuade a simple CSG object (with only flat
surface, sadly) to look like that?
I could post my file if needed - it's only 2K
BugBear (newcomer to raytracing - 3 hours experience and counting)
(*) since geocities check the referring page, I can't link
straight to the high-res at http://www.geocities.com/plybench/miller.jpg
Mike Williams
>At the risk of hijacking this thread, I'm after a (particular)
>NON-realistic look (which should be easier, I hope).
>
>I attempting to make some instructional renderings
>to do with the shape of hand saw sharpening, and teeth shapes.
>An update of this kind of thing
>http://www.disstonianinstitute.com/sawfiling1.html
>
>I have the
>geometrical part of the project (which is rather simple)
>more or less down pat, but the aesthetics and clarity suck.
>
>The look, both in excellence of presentation and period
>style that I want it show on a graphic hung off my
>geocities website
>http://www.geocities.com/plybench/
>
>Click on the thumbnail labelled
>"Milling cutter I like the appearance of"
>and you'll get the high res (*)
>
>How do I persuade a simple CSG object (with only flat
>surface, sadly) to look like that?
One of the things that you'll need to do to get that sort of style is to
post process the image to wind the contrast up to an unrealistically
high level.
With reflective objects, it's often useful to add some background for
the object to reflect, if necessary using the "no_image" keyword so that
it only appears in the reflection.
It looks to me like the geocities image has some reflection blur, which
you may be able to simulate by using a little bit of focal blur, since
the stuff you are reflecting can be placed as far away as you like.
--
Mike Williams
Gentleman of Leisure
Noé Falzon
> (still a WIP)
What is that ?
--
"Je ne deteste que les bourreaux" -- Albert Camus
Pour m'écrire, veuillez enlever PASDEPUB de mon adresse ;P
Lord Crc
Falzon) wrote:
>Jonathan Rafael Ghiglia <im...@telling.you> wrote:
>
>> (still a WIP)
>
>What is that ?
Work In Progress
- Asbjørn
Scott Boham
> Rick [Kitty5] wrote:
> > Marco wrote:
> >
> > > I am making a watch with POV, but I can't make it look realistic.
> > > Is photorealism possible with POV?
> >
> >
> > Yes it is, as with everything, the devil is in the detail (esp the
> > lighting)
> >
> > One of my more photorealistic renders
> > http://www.kitty5.com/portfolio/3d/3com.asp
>
> And that is what I am saying. Could that be an actual photo? Look at
> the surface of the chip and ask why a manufacturer would have spots of
> lighter color on it.
I don't think it looks too bad, if anything the shadow of the whole card
looks the least realistic.
Rick [Kitty5]
> I don't think it looks too bad, if anything the shadow of the whole
> card looks the least realistic.
I ran out of memory and had to slaughter the radioasity settings to stop pov
from swapping, the shadow is the only noticeable effect. Keep meaning to
render it again with better settings.....
--
Rick
Kitty5 NewMedia http://Kitty5.com
Matt Giwer
I did not say it looks bad but issue was photo-realism and chips do not
have spots and those spots are on the big chip in the center of the
image. It is an excellant exercise in modeling. It is sort of odd they
occur in the first place.
--
2003 May 16: A free and independent Iraq put off indefinitely.
That is one way to liberate Iraq. Put Bush part functionaries
in charge as colonial governors.
-- The Iron Webmaster, 2681
Rick [Kitty5]
> I did not say it looks bad but issue was photo-realism and chips do
> not have spots and those spots are on the big chip in the center of
> the image. It is an excellant exercise in modeling. It is sort of odd
> they occur in the first place.
Chips do have spots when you dont clean them before plonking the card on the
scanner :)
--
Rick
Kitty5 NewMedia http://Kitty5.com