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Mike Hough <nos### [at] nospamcom> wrote:
> I posted a test render in p.b-t.b. Did not experience the same speedup with
> all scenes. The new beta is slower once I started adjusting global radiosity
> settings.
But the new beta (with the radiosity changes) is not published yet. How
is this possible?
--
- Warp
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Apparently I misunderstood the situation. Will do the test again when it is
published. I thought Chris was saying that it was included in beta 30.
Interesting nonetheless.
"Warp" <war### [at] tagpovrayorg> wrote in message
news:496766da@news.povray.org...
> Mike Hough <nos### [at] nospamcom> wrote:
>> I posted a test render in p.b-t.b. Did not experience the same speedup
>> with
>> all scenes. The new beta is slower once I started adjusting global
>> radiosity
>> settings.
>
> But the new beta (with the radiosity changes) is not published yet. How
> is this possible?
>
> --
> - Warp
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"clipka" <nomail@nomail> wrote:
> Chris Cason <del### [at] deletethistoopovrayorg> wrote:
> > Just an FYI to the folks who are interested: Christoph's radiosity fixes
> > have been integrated and see to work very well. A hearty 'thanks' to him
> > for this! I intend to do a release in the next day or two that incorporates
> > the new code.
>
> You're welcome! It's all just pure selfishness anyway :)
>
Well, be sure to thank your selfishness for me! :-P
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I've got some 32-bit EXE's of the radiosity changes up at:
http://www.povray.org/temp/pvengine-beta30-rad1.zip
No installer, sorry, there's a story behind that, will tell you later.
-- Chris
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> I've got some 32-bit EXE's of the radiosity changes up at:
Has anyone used these EXE's ?
-- Chris
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Chris Cason <del### [at] deletethistoopovrayorg> wrote:
> > I've got some 32-bit EXE's of the radiosity changes up at:
>
> Has anyone used these EXE's ?
>
> -- Chris
After a long time many greetings to all of you!
Special Thanks to Chris and clipka for the effort providing "new" radiosity!
The shading looks much more smooth, so better compared to Beta29/30.
Also indirect lighting in dimmed regions shows better contrast. Very good!
But rendertime seems to be many times over (~10x ) with Beta30rad1 (considering
clipka's setting hint about nearest_count and low_error_factor)...
.....at least for my actual rendering:
W4500 H3000
QuadCore @2.66GHz
Vista64(!),
but also for
Core2Duo @2.4GHz
on XP32
When running rendering is done I'll post some comparing details in p.b.i...
In gratitude
TomAust
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Chris Cason <del### [at] deletethistoopovrayorg> wrote:
> > I've got some 32-bit EXE's of the radiosity changes up at:
>
> Has anyone used these EXE's ?
>
> -- Chris
Yes, still rendering ;-)
34h and counting, I may have used exaggerated settings.
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I have posted some test results to p.b-t.b. The cornell.pov scene renders
about 3 times faster with the beta than with 3.6 on my system but I can't
seem to get a good quality render using a more complex scene without
increasing the render time several fold.
Mike
"Chris Cason" <del### [at] deletethistoopovrayorg> wrote in
message news:496ffa24$1@news.povray.org...
>> I've got some 32-bit EXE's of the radiosity changes up at:
>
> Has anyone used these EXE's ?
>
> -- Chris
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I suggest a test for those with a very fast processor (pure radiosity scene):
Img: http://www.irtc.org/ftp/pub/stills/2002-08-31/golonls2.jpg
Source: http://www.irtc.org/ftp/pub/stills/2002-08-31/golonls2.zip
- radiosity abstract:
radiosity {
pretrace_start 0.08
pretrace_end 0.01
count 500
nearest_count 10 -----> change to 1?
error_bound 0.02
recursion_limit 1 ----> good
low_error_factor 0.2
gray_threshold 0.0
minimum_reuse 0.015
brightness 1
adc_bailout 0.01/2
}
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"StephenS" <nomail@nomail> wrote:
> Yes, still rendering ;-)
> 34h and counting, I may have used exaggerated settings.
The radiosity settings where some what random in nature, something to give a
long render.
global_settings {
adc_bailout 0.003
ambient_light rgb <1.000,1.000,1.000>
assumed_gamma 2.200
irid_wavelength rgb <0.250,0.180,0.140>
max_trace_level 15
number_of_waves 10
noise_generator 3
charset ascii
radiosity {
count 950
recursion_limit 4
nearest_count 20
adc_bailout 0.010
brightness 1.000
error_bound 1.080
gray_threshold 0.000
low_error_factor 0.125
minimum_reuse 0.000
always_sample 1
pretrace_end 0.001
pretrace_start 0.080
normal 1
media 0
}
}
A partial message pane output:
Parser Statistics
Finite Objects: 8
Infinite Objects: 0
Light Sources: 0
Total: 8
Parser Time
Parse Time: 0 hours 0 minutes 0 seconds (0.000 seconds)
using 1 thread(s) with 0.000 CPU-seconds total
Bounding Time: 0 hours 0 minutes 0 seconds (0.000 seconds)
using 1 thread(s) with 0.000 CPU-seconds total
Warning: Scene contained deprecated 'assumed_gamma'. Output gamma has been
adjusted to match legacy 'assumed_gamma' due to language version being set to
3.61 or lower. However, future versions of POV-Ray will not support backward
compatibility with 'assumed_gamma'. It is strongly recommended you update your
scene file by removing 'assumed_gamma' and add suitable 'Display_Gamma' and
'File_Gamma' options to your INI file or command-line instead. See the
documentation for details.
Render Options
Quality: 9
Bounding boxes.......On Bounding threshold: 3
Antialiasing.........On (Method 1, Threshold 0.300, Depth 3, Jitter 1.00)
Rendering stopped by GUI extension
Render Statistics
Image Resolution 640 x 480
Pixels: 487991 Samples: 16650 Smpls/Pxl: 0.03
Rays: 255902538 Saved: 0 Max Level: 640/480
Ray->Shape Intersection Tests Succeeded Percentage
Box 200894103 163730488 81.50
Cone/Cylinder 89127307 12357493 13.86
Bounding Box 2808677478 1104323087 39.32
Reflected Rays: 21455955
Radiosity samples calculated: 845891 (0.52 %)
Radiosity samples reused: 161480379
Radiosity (final) calculated: 609 (0.08 %)
Radiosity (final) reused: 776949
Pass Depth 0 Depth 1 Depth 2 Depth 3 Total
1 140 3294 4375 434 8243
2 539 4253 7819 273 12884
3 2107 7599 32260 730 42696
4 5638 11817 80982 691 99128
5+ 22502 36400 591111 32318 682331
Final 609 - - - 609
Total 31535 63363 716547 34446 845891
Render Time:
Photon Time: No photons
Radiosity Time: 35 hours 45 minutes 35 seconds (128735.938 seconds)
using 12 thread(s) with 356422.745 CPU-seconds total
Trace Time: 0 hours 29 minutes 7 seconds (1747.218 seconds)
using 2 thread(s) with 3488.937 CPU-seconds total
POV-Ray finished
-
CPU time used: kernel 11.13 seconds, user 359913.86 seconds, total 359924.98
seconds.
Elapsed time 185766.48 seconds, CPU vs elapsed time ratio 1.94.
----------------------------------------------------------------------------
Bottom right lists:
99 ppm
2d 03h 36m 06s
A difference between 3.61 and 3.7b30rad1 will be posted in a binary group.
3.7b30rad1 was slightly brighter.
Complete files available.
Stephen S
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