 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Hi,
as already mentioned some time ago, I have done a patched version
of PoV that does not only read but also write high dynamic range
images. This patch does not work with the radiance HDR images
used by MLPov but uses the superior LogLuv Tiff format, that
provides both, a 'higher' high dynamic range and does also cover the
full range of the visible gamut (radiance files do not!).
Anyway, here is the jpeg preview of my simplified italian room scene -
rendered as LogLuv HDRI and for your convenience I have already
converted the original image to the Radiance file format to be easily
used with MLPov as a global illumination map.
I am definitely not sure if I have used good settings to render this hdr-
image (there are some more values to adjust for this image type) and
as you can see, the used radiosity settings where also quite poor.
But this should not matter when used just as a lighting map (well hmm,
I hope so). But for the moment, I do not have the time (and mood) to
develope this hdr-thing any further - so here is the link to download this
radiance HDR image:
http://www.lilysoft.com/gallery/download/room-luv.hdr
feel free to use it for yout own scene (in case you are bored by using
the kitchen-probe again) and note thas this image is already rendered
by using the spherical camera (there is definitely no need to simulate
the chrome ball as in photographic light probe images) so you should
use map_type 1 (and not 7 !!!) to map the image on your sphere.
And well, just in case anybody uses it, I would be glad to have a look
at the resulting image and would like to know if it works in fact similar
to the photographed probes.
-Ive
Post a reply to this message
Attachments:
Download 'FlorenceRoomHDR.jpg' (102 KB)
Preview of image 'FlorenceRoomHDR.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
maybe I should have mentioned this :)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Ive wrote:
>
> [...]
>
> Anyway, here is the jpeg preview of my simplified italian room scene -
> rendered as LogLuv HDRI and for your convenience I have already
> converted the original image to the Radiance file format to be easily
> used with MLPov as a global illumination map.
More interesting than this would be to have your LogLuv output patch. Do
you use the libtiff library? Could you publish you patch?
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I love that image! The only problem I would have is getting in and out of
that room.
Patrick Dugan
"Ive" <ive### [at] lilysoft com> wrote in message news:3e5f5bfe@news.povray.org...
> Hi,
>
> as already mentioned some time ago, I have done a patched version
> of PoV that does not only read but also write high dynamic range
> images. This patch does not work with the radiance HDR images
> used by MLPov but uses the superior LogLuv Tiff format, that
> provides both, a 'higher' high dynamic range and does also cover the
> full range of the visible gamut (radiance files do not!).
>
> Anyway, here is the jpeg preview of my simplified italian room scene -
> rendered as LogLuv HDRI and for your convenience I have already
> converted the original image to the Radiance file format to be easily
> used with MLPov as a global illumination map.
>
> I am definitely not sure if I have used good settings to render this hdr-
> image (there are some more values to adjust for this image type) and
> as you can see, the used radiosity settings where also quite poor.
> But this should not matter when used just as a lighting map (well hmm,
> I hope so). But for the moment, I do not have the time (and mood) to
> develope this hdr-thing any further - so here is the link to download this
> radiance HDR image:
>
> http://www.lilysoft.com/gallery/download/room-luv.hdr
>
> feel free to use it for yout own scene (in case you are bored by using
> the kitchen-probe again) and note thas this image is already rendered
> by using the spherical camera (there is definitely no need to simulate
> the chrome ball as in photographic light probe images) so you should
> use map_type 1 (and not 7 !!!) to map the image on your sphere.
>
> And well, just in case anybody uses it, I would be glad to have a look
> at the resulting image and would like to know if it works in fact similar
> to the photographed probes.
>
> -Ive
>
>
>
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
window?
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Apache wrote:
>window?
>
Or maybe the door on the left (look carefully) ;)
John
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> Or maybe the door on the left (look carefully) ;)
Thanks for saying this ;)
-Ive
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> More interesting than this would be to have your LogLuv output patch.
More interesting than what?
> Do you use the libtiff library?
Sure, its already there. And thanks to Greg Ward who did contribute
the code for SGI tiff log-luv to libtif.
>Could you publish you patch?
It was made for this purpose. But it was only a one night quick and
brute hack. So when enabling the LogLuv file output, the continue
trace option and the render window does not work, maybe there are
more side effect. Nothing is yet documented and I did not even read
the guidelines for patching pov. I guess there are some.
So I do not want to become crucified for my dirty hacking style, but
have currently no time to work on this.
In fact, I guess the log-luv reading part is done very similar to the patch
by Mael (even more simple because most of the work is done by libtif)
and for the writing part only all color clipping had to be skipped, gamma
correction had to be disabled and a kind of exposure control (I have not
installed mega-pov, but have read about it, so I guess it works the same
way) For the file writing itself does again libtif most of the work.
Thats all.
-Ive
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Ive wrote:
>
> > More interesting than this would be to have your LogLuv output patch.
>
> More interesting than what?
>
More interesting than the image :-)
Don't get me wrong, the image looks good but being able to generate one's
own HDR maps would be more useful.
> >Could you publish you patch?
>
> It was made for this purpose. But it was only a one night quick and
> brute hack. So when enabling the LogLuv file output, the continue
> trace option and the render window does not work, maybe there are
> more side effect. Nothing is yet documented and I did not even read
> the guidelines for patching pov. I guess there are some.
> So I do not want to become crucified for my dirty hacking style, but
> have currently no time to work on this.
You can send it to me if you want - someone from the Megapov Team might
find the time to work on it so it can be included in Megapov.
If continued trace does not work i assume you have not yet implemented the
Read_Line() method.
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Ive and folks:
Here is what it looked like when I tried it.
Aaron
Aaron Gillies
New York City
x3rxes[&]yahoo.com
"Ive" <ive### [at] lilysoftcom> wrote in message news:3e5f5bfe@news.povray.org...
> Hi,
>
> as already mentioned some time ago, I have done a patched version
> of PoV that does not only read but also write high dynamic range
> images. This patch does not work with the radiance HDR images
> used by MLPov but uses the superior LogLuv Tiff format, that
> provides both, a 'higher' high dynamic range and does also cover the
> full range of the visible gamut (radiance files do not!).
>
> Anyway, here is the jpeg preview of my simplified italian room scene -
> rendered as LogLuv HDRI and for your convenience I have already
> converted the original image to the Radiance file format to be easily
> used with MLPov as a global illumination map.
>
> I am definitely not sure if I have used good settings to render this hdr-
> image (there are some more values to adjust for this image type) and
> as you can see, the used radiosity settings where also quite poor.
> But this should not matter when used just as a lighting map (well hmm,
> I hope so). But for the moment, I do not have the time (and mood) to
> develope this hdr-thing any further - so here is the link to download this
> radiance HDR image:
>
> http://www.lilysoft.com/gallery/download/room-luv.hdr
>
> feel free to use it for yout own scene (in case you are bored by using
> the kitchen-probe again) and note thas this image is already rendered
> by using the spherical camera (there is definitely no need to simulate
> the chrome ball as in photographic light probe images) so you should
> use map_type 1 (and not 7 !!!) to map the image on your sphere.
>
> And well, just in case anybody uses it, I would be glad to have a look
> at the resulting image and would like to know if it works in fact similar
> to the photographed probes.
>
> -Ive
>
>
>
Post a reply to this message
Attachments:
Download 'room.JPG' (154 KB)
Preview of image 'room.JPG'
|
|
| |
| |
|
|
|
|
| |
