 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Hi all!
I'm having some problems with getting radiosity to look good in my current
IRTC project.
I've attatched three pictures
bathroom07_small_original.jpg is how it came out from POV-Ray
bahtroom07_gamma.jpg is gamma correceted to se the detais
bahtroom07_target.jpg is an gamma / brightness / contrast altered image, and
is somewhat what I aim for.
I tried using two lights, and it looked better, but you couldn't even spot
the light beam from the door, and that is an important part of the scene.
I'll model seperate tiles for the walls and sink, any tips for a good, clean
ceramic texture?
I use the following rad settings: (uses Jaimes save/load trick)
global_settings{
assumed_gamma 1.0
ambient_light 0.0
#if (R)
iosity{
// indoor quick settings from rad_def.inc
#if(R_Save)
pretrace_start 0.08
pretrace_end 0.01
count 50+100
nearest_count 5+15
error_bound 0.5-0.25
recursion_limit 2
low_error_factor 0.8
gray_threshold 0
minimum_reuse 0.015
brightness 1.0+1.5
adc_bailout 0.01/2
save_file "bathroom.main.radiosity"
#else
// load settings
pretrace_start 1 pretrace_end 1
load_file "bathroom.main.radiosity"
error_bound 0.5 // it's important to specify the same value used to save
data
recursion_limit 2 // also the same if specified
always_sample off // no more samples: specially useful with focal blur
#end
}
#end
}
The rad is collected in 320x240 res with dummy objects and no finishes (~45min). And
then rendered in 1280x1024 (~1hour)
Any help appreciated!
Kind regards
Peter
Post a reply to this message
Attachments:
Download 'bathroom07_small_original.jpg' (7 KB)
Download 'bathroom07_gamma.jpg' (27 KB)
Download 'bathroom07_target.jpg' (18 KB)
Preview of image 'bathroom07_small_original.jpg'
Preview of image 'bathroom07_gamma.jpg'
Preview of image 'bathroom07_target.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Peter Hertel wrote:
>
> Hi all!
> I'm having some problems with getting radiosity to look good in my current
> IRTC project.
> I've attatched three pictures
> bathroom07_small_original.jpg is how it came out from POV-Ray
> bahtroom07_gamma.jpg is gamma correceted to se the detais
> bahtroom07_target.jpg is an gamma / brightness / contrast altered image, and
> is somewhat what I aim for.
Your image is simply way too dark. Making the light source much brighter
will certainly improve it (alternatively you can also try the film
exposure function in megapov).
Also note that modifying contrast/brightness/gamma in the (8 bit) image
afterwards will strongly reduce the quality - most artefacts in your third
image do not seem to be caused by radiosity but by the limited color
resolution.
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 31 Dec. 2002 _____./\/^>_*_<^\/\.______
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I've found that in architectural-type images it works better to increase the
minimum_reuse and the count, and decrease the error_bound. Also, increasing
the recursion_limit will increase the brightness a little bit.
I found this to work okay for my last scene:
pretrace_start 1
pretrace_end 0.01
count 600
nearest_count 5
error_bound 0.25
recursion_limit 5
low_error_factor .5
gray_threshold 0.0
minimum_reuse 0.05
brightness 1
adc_bailout 0.01/1
"Peter Hertel" <peter@hertel**NOSPAM**.no> wrote in message
news:3e3aaf07@news.povray.org...
> Hi all!
> I'm having some problems with getting radiosity to look good in my current
> IRTC project.
> I've attatched three pictures
> bathroom07_small_original.jpg is how it came out from POV-Ray
> bahtroom07_gamma.jpg is gamma correceted to se the detais
> bahtroom07_target.jpg is an gamma / brightness / contrast altered image,
and
> is somewhat what I aim for.
>
> I tried using two lights, and it looked better, but you couldn't even spot
> the light beam from the door, and that is an important part of the scene.
> I'll model seperate tiles for the walls and sink, any tips for a good,
clean
> ceramic texture?
>
> I use the following rad settings: (uses Jaimes save/load trick)
>
> global_settings{
> assumed_gamma 1.0
> ambient_light 0.0
> #if (R)
>
> iosity{
> // indoor quick settings from rad_def.inc
> #if(R_Save)
> pretrace_start 0.08
> pretrace_end 0.01
> count 50+100
> nearest_count 5+15
> error_bound 0.5-0.25
> recursion_limit 2
> low_error_factor 0.8
> gray_threshold 0
> minimum_reuse 0.015
> brightness 1.0+1.5
> adc_bailout 0.01/2
> save_file "bathroom.main.radiosity"
> #else
> // load settings
> pretrace_start 1 pretrace_end 1
> load_file "bathroom.main.radiosity"
> error_bound 0.5 // it's important to specify the same value
used to save data
> recursion_limit 2 // also the same if specified
> always_sample off // no more samples: specially useful with focal
blur
> #end
> }
> #end
> }
>
> The rad is collected in 320x240 res with dummy objects and no finishes
(~45min). And then rendered in 1280x1024 (~1hour)
>
> Any help appreciated!
>
> Kind regards
> Peter
>
>
>
>
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> Your image is simply way too dark. Making the light source much brighter
> will certainly improve it (alternatively you can also try the film
> exposure function in megapov).
Doh.. something didn't connect properly in my brain..
I added a 150 light multiplyer to the light, and it worked great. I lost
most of the warm colors in the light though.. I'll have to play around some
more.
> Also note that modifying contrast/brightness/gamma in the (8 bit) image
> afterwards will strongly reduce the quality - most artefacts in your third
> image do not seem to be caused by radiosity but by the limited color
> resolution.
Yeah.. I know.. It was mostly to get some hints of where I was planning to
go. And since brightness/constrast editing isn't permitted in IRTC, it's not
an option, really.
Thank you for your reply!
-Peter
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> I've found that in architectural-type images it works better to increase
the
> minimum_reuse and the count, and decrease the error_bound. Also,
increasing
> the recursion_limit will increase the brightness a little bit.
>
> I found this to work okay for my last scene:
> pretrace_start 1
> pretrace_end 0.01
> count 600
> nearest_count 5
> error_bound 0.25
> recursion_limit 5
> low_error_factor .5
> gray_threshold 0.0
> minimum_reuse 0.05
> brightness 1
> adc_bailout 0.01/1
That did the trick, thank you!
This is the first scene I'm making which depends so much on radiosity,
there's a lot to learn.
-Peter
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
from the title of your post I thought you were talking
about a new periodical. I think you meant the title
to be "Some Radiousity Problems".
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"nospam" <Pet### [at] nym aliasnetalmost> wrote in message
news:3e42a121.6444273@localhost...
> from the title of your post I thought you were talking
> about a new periodical. I think you meant the title
> to be "Some Radiousity Problems".
I worked at a company some years ago where we weren't allowed to use the word
'problem' because it evoked negativity. 'Issues' however presented 'challenges
to be overcome.' He may be suffering residual effects from similar authoritarian
silliness.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> He may be suffering residual effects from similar authoritarian silliness.
Something like that :)
-Peter
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
