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"frozen" <fro### [at] thefrozen no-ipcom> wrote in message
news:web.414f7cacbf1ad50e102354040@news.povray.org...
> Hey Greybeard,
>
> thank you very much for your efforts on testing it! I don't have any idea,
> what might cause these very slow renderings. I guess, I will have to do
> some more tests, when the picture it's rendering now is done.. This will
> still take a while.. 1d2h working, 43% reached... :-(
>
One more test, well, two actually. Arbre with grass and trees remmed out,
19 sec.
Original file as downloaded, 33 min 6 sec,
Win2k, 2.6 ghz Pentium 4c, 1 gig memory. P-4c has the 800mhz buss, again
rendered 800 X 600 AA 0.3
POV-Ray 3.5 though, don't remember which version you're running.
Greybeard
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> One more test, well, two actually. Arbre with grass and trees remmed out,
> 19 sec.
> Original file as downloaded, 33 min 6 sec,
> Win2k, 2.6 ghz Pentium 4c, 1 gig memory. P-4c has the 800mhz buss, again
> rendered 800 X 600 AA 0.3
>
MY ERROR! No AA. Sorry bout that.
Greybeard
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> I guess, the time can't be reduced, but I would like to understand, WHY it
> takes so long?!
Can't help you right now, but make sure you safe the render statistics
POV spits out at the end of the render (the whole table). Post them
here, they often tell you what's going wrong ;)
Florian
--
This may seem a bit weird, but that's okay,
because it is weird. (perldata)
[------------ http://www.torfbold.com - POV-Ray gallery ------------]
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@greybeard:
Thanks again! So you have rather fast renderings, even with AA and I have
very slow ones, even without AA at much smaller resolutions.. This is
something I don't understand..
I'm using povray 3.6.1
@florian:
Do you know, how to save these messages using the windows version? If I can
save them, I will post these stats here, when the pic is done.. 68% are
done after 1d14h...
Thanking you all,
frozen
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@florian:
Here are the latest stats:
Remove bounds........On
Split unions.........Off
Library paths:
i:ProgrammePOV-Ray for Windows v3.6INCLUDE
C:WINNTFonts
Output Options
Image resolution 800 by 600 (rows 1 to 600, columns 1 to 800).
Output file: I:downloadsarbrechess.bmp, 24 bpp (system format)
Graphic display......On (gamma: 2.2)
Mosaic preview.......Off
CPU usage histogram..Off
Continued trace......Off
Tracing Options
Quality: 9
Bounding boxes.......On Bounding threshold: 3
Light Buffer.........On
Vista Buffer.........On Draw Vista Buffer....Off
Antialiasing.........On (Method 1, Threshold 0.100, Depth 3, Jitter 0.50)
Clock value: 0.000 (Animation off)
File: mgrass.pov Line: 205
Parse Warning: fgrass2.inc mesh file creation starts
File: mgrass.pov Line: 240
Parse Warning: fgrass2.inc file created
Cleanup Parse Warning: This rendering uses the following experimental
feature(s): radiosity. The
design and implementation of these features is likely to change in future
versions of POV-Ray. Full backward compatibility with the current
implementation is NOT
guaranteed.
Scene Statistics
Finite objects: 156821
Infinite objects: 3
Light sources: 1
Total: 156825
Possible Rendering Error: Maximum trace level reached! If your scene
contains black spots read
more about the max_trace_level setting in the documentation!
Render Statistics
Image Resolution 800 x 600
Pixels: 481405 Samples: 3058125 Smpls/Pxl: 6.35
Rays: 7019005 Saved: 1579 Max Level: 5/5
Ray->Shape Intersection Tests Succeeded Percentage
Box 639759 543867 85.01
Cone/Cylinder 17402 7559 43.44
CSG Intersection 8701 2259 25.96
Mesh 24525945 6537704 26.66
Plane 12966658 3319793 25.60
Sphere 25949631 19836331 76.44
Superellipsoid 4011692 1897812 47.31
Triangle 595668 32490 5.45
Bounding Box 349230262435 540399421 0.15
Light Buffer 427137499824 427137499824 100.00
Vista Buffer 159623429 120567531 75.53
Calls to Noise: 18065575 Calls to DNoise: 70823911
Shadow Ray Tests: 9515610 Succeeded: 5499837
Transmitted Rays: 1297848
Radiosity samples calculated: 81206 (1.34 %)
Radiosity samples reused: 5987420
Smallest Alloc: 18 bytes
Largest Alloc: 75497488 bytes
Peak memory used: 370198107 bytes
Total Scene Processing Times
Parse Time: 0 hours 29 minutes 28 seconds (1768 seconds)
Photon Time: 0 hours 0 minutes 0 seconds (0 seconds)
Render Time: 43 hours 43 minutes 25 seconds (157405 seconds)
Total Time: 44 hours 12 minutes 53 seconds (159173 seconds)
CPU time used: kernel 104.26 seconds, user 135555.17 seconds, total
135659.43 seconds
Render averaged 3.54 PPS over 480000 pixels
POV-Ray finished
Do you see anything, which explains the looooong time?
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> Possible Rendering Error: Maximum trace level reached! If your scene
> contains black spots read
>
> more about the max_trace_level setting in the documentation!
You say you have superellipsoids stacked one on top of another. What is
their texture? Are they reflective or transparent? Both?
- Slime
[ http://www.slimeland.com/ ]
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"Slime" <fak### [at] emailaddress> wrote:
> You say you have superellipsoids stacked one on top of another. What is
> their texture? Are they reflective or transparent? Both?
#declare StoneWallStoneTexture=
texture
{
T_Stone8
normal { dents scale 0.2 }
finish { phong 0 specular 0 crand 0.1 }
}
#declare StoneWallRGBlow = <0.7,0.5,0.35>;
#declare StoneWallRGBhigh = <1,0.9,.7>;
#declare StonePillarStoneTexture=
texture
{
T_Stone9
normal { dents scale 0.2 }
finish { phong 0 specular 0 crand 0.1 }
}
I hope, this answers your question? ;-)
Thanks,
frozen
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"frozen" <fro### [at] thefrozenno-ipcom> wrote in message
news:web.4150a14ebf1ad50e9c688d540@news.povray.org...
> @florian:
>
> Antialiasing.........On (Method 1, Threshold 0.100, Depth 3, Jitter
0.50)
The threshold isn't helping any, as far as render times. I normally use .3,
very rarely, .2 (Renders to check progress, no AA, it can speed things
considerably.) I don't know how much this is really slowing it down, maybe
someone else can venture a guess.
Greybeard
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> Ray->Shape Intersection Tests Succeeded Percentage
> Bounding Box 349230262435 540399421 0.15
> Do you see anything, which explains the looooong time?
I could be wrong, but 0.15 percentage of successful bounding box tests
looks like a bounding problem to me. Apart from manual bounding, these
are often caused by differences: Check the ones in your scene (you don't
need many to slow things down a lot) and try to bound them manually. Or
check if some methods/tips mentioned in the Holes Tutorial
(http://www.econym.demon.co.uk/holetut/index.htm) help (render the image
in a low resolution with no antialiasing to test these methods). The
tutorial also explains what's the problem with differences in POV-Ray.
If none of that helps, I usually try to spot the problem by removing
things from the scene step by step until I find out which objects slow
the render down a lot. Once you found these, it's often a lot easier to
pin down the problem.
HTH,
Florian
--
Minimum Requirement #8: Emacs is for experts. Joe is for beginners. VI
is a disease. (WEB.DE help-wanted ad: Linux Guru)
[------------ http://www.torfbold.com - POV-Ray gallery ------------]
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are you performing any "differences" with the wall? that could slow things
down considerably. I've written wall type macros that use superellipsoids,
rounded boxes, or regular boxes, and while superellipsoids were the slowest,
it never took several hours even on my 800Mhz duron. Differencing a doorway
or a window in the wall would spike the render times into the several hours
range for sure.
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