atomicmak
Posts: 173
Location: ahmedabad, India
Registered: 7 Dec 2006
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hardware question
Posted: 26 May 2008 at 9:35 GMT
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i've just bought new system
here are the specs of my new system
Intel Q6600 Quad Core processor 2.4ghz
Intel DG33FB motherboard
2x 160gb STAT with 3gb/transfer
2x 2gb 800Mhz DDR2 Ram
nVidia 7200 256mb Display Card
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I have setup partition like this
DISK 1
C:\ 20gb Operating System (winxp pro 32bit)
D:\ 20gb pagefile (5gb to 10gb set on this partition)
E:\ rest space allocated for data
DISK 2
F:\ 30gb TEMP space
G:\ rest space allocated for data
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i gave test run just and found that everything speeds up up to exposure fusion in to PTGUI
but when i put ptGUi in final output run (Create Panorama) it takes so much of time still compare to my dual core 2gb ram its same time it takes.
is there any method i can speed up this runtime panorama creation ?
i use 7x7(bracket)= 49 shot and give output thorugh ptGUi with exposure blending option (enfuse).
dont want to compromise on reducing brackets.
some expert guideline require
please help me out.
mital patel
www.vox360.in
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atomicmak
Posts: 173
Location: ahmedabad, India
Registered: 7 Dec 2006
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Re: hardware question
Posted: 26 May 2008 at 9:41 GMT
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i use ptgui 7.8
gave output of 10000x5000 dimension output and took almost 30 minutes to make 7 spherical and one enfused result save.
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atomicmak
Posts: 173
Location: ahmedabad, India
Registered: 7 Dec 2006
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Re: hardware question
Posted: 26 May 2008 at 11:11 GMT
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here is my test report
I am using d200 + nikkor 10.5
6 + 1(zenith) = 7 * 7(brackets) = 49 shots
PTGUI 8beta3
PTGui Final output : 4:00 Wraping Started ## 4:16 Blending Started ## 4:17 Exposure Fusion Started ## 4:19 completed
6000 x 3000 outputsize
20 minutes to give 7 blended spherical + 1 enfused result saving
is there any way we can still improve speed ?
will 64bit allow me to use all my 4 core's of process and 4gb ram to
be utilised ?
as what i seen now is not more than 1gb ram is being used though i set
80% ram to be used by ptgui in option and process all 4 core running
at 11 to 15% in whole process.
please guide me.
mak
www.vox360.in
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Hans Nyberg
Posts: 822
Location: Denmark
Registered: 28 Aug 2005
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Re: hardware question
Posted: 26 May 2008 at 11:14 GMT
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You should start with testing the new 8.0 beta which has some of the improvements for memory you can use.
Hans
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Hans Nyberg
Posts: 822
Location: Denmark
Registered: 28 Aug 2005
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Re: hardware question
Posted: 26 May 2008 at 11:37 GMT
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OK I can see you found out about 8.0
Remember that the use of Ram is not seen if you do not have a monitor which shows Ram use separately.
Not sure how Windows will show it but on Mac the Activity monitor will only show it as a general use not specified for PTGui.
Hans
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Hans Nyberg
Posts: 822
Location: Denmark
Registered: 28 Aug 2005
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Re: hardware question
Posted: 26 May 2008 at 15:01 GMT
updated: 26 May 2008 at 15:04 GMT
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I know you claim that you need 7 images but I absolutelly do not mean that it is nessecary.
How do you think all of us who use Canon do. Do we produce worse results than the Nikon users because we have only 3 bracketing.
You have a better choice on Nikon as you can select the exposures which give the best results but Canon users has to be more careful in setting the initial exposures at the shoot. but you only need 3 or max 4 brackets to give you perfect results.
Actually I often use just 2 and in mot cases I just choose the best exposure even if I bracket. You can do most in careful Raw converting.
For better speed you should not use PTGui.
I just made a test with 3x7 images at 6000x3000 on my old Mac G5 dualcore 2.0.
Time 31 minutes with Ptgui fusing + blendplanes saved and PtGui blending, Enblend would do it a little faster.
But much faster is to Enfuse the images first.
Enfusing 3x7 7,30 min
PTgui stitcing the enfused images 3.45 min
In all 11,15 minutes.
In addition setting up PTgui is much faster and better this way,
And the controlpoints generated from the enfused images are much better and you get much faster a good optimize.
The controlpoints Autogenerator loves the enfused images,
With all images I got average 2,2 max 52 as inbitial result-
With enfused images I got average 1,2 and max 9 distances.
Hans
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marcus newey
Posts: 127
Location: somerset, United Kingdom
Registered: 23 Oct 2005
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enfuse workflow
Posted: 26 May 2008 at 15:14 GMT
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Hans,
by using individually developed RAW files and/ or bracketed shots which have been enfused before going to PTGui for stitching, how do you avoid visible colour / exposure seams in the finished file?
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Hans Nyberg
Posts: 822
Location: Denmark
Registered: 28 Aug 2005
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Re: enfuse workflow
Posted: 26 May 2008 at 15:35 GMT
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Why should I get that. Enfusing bracketted shots made from Raw does not produce any large differences.
In most cases the Raw files are batch converted with the same exposures.
I might need to change each set but I usually set them at the same for all with one exposure.
For example I might need to + 1/2 stop on the medium exposure and make the darkest shot 1/2 stop darker or perhaps use the recovery on all the dark ones to get some extra in highlight areas.
Anyhow PTGui is very good to adjust small differences. I just started to use
automatic exposure for doing fast action shots as using bracketing for that is to slow when I shoot at continous rotating with 1/2000 sec exposure.
Hans
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atomicmak
Posts: 173
Location: ahmedabad, India
Registered: 7 Dec 2006
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Re: enfuse workflow
Posted: 26 May 2008 at 17:17 GMT
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dear hans,
i never thought to hurt any expert here.
as my routine practice to reduce indoor thing like lamps high voltage lights etc i do take more brackets.
year ago i was shooting with 5 brackets and now i do 7 as the final output gives me better enfuse result in indoor panorama's. i never tried taking 5 after i got results of 7 bracketed enfuse.
anyways i apologise if i hurt you.
i have tried enfuse first and then stitch but what here i do is if suppose i stitch 7 blend spherical's and one enfuse and thenafter if i need to re enfuse them with lightest part or darkest part to recover some hard burned light or part i will have better chance and if suppose i do enfuse first and then stitch i would not have a perfect idea of how the whole spherical will look after stitch unless i give final output.
btw i have just installed ptgui 64bit on my q6600 and installed 64bit xp pro and found that i can stitch my 7*7=49 images with 7 blended spherical and one enfuse in just 4 minutes and as i use template system with my fixed parameter of nn3 i do have almost 0 stitching errors on most of my panoramas.
i just want to look at tunning the system for pagefile, temp partition's on how and where to make them to work faster with little more size e.g. 10000 x 5000 or may be double for printing giant hording and making gigapixel panorama.
thanks for all your replies on this thread.
would sure do some test on your suggested criteria of taking less brackets as if it can solve my masking of windows and other.
in 3 bracket if i meter general exposure and then take +-2 bracket with 1ev max in nikon steps it dont provide me perfect shot of windows even majority times in our indian indoor lighting we find that taking 5 bracket makes less so i do take 7 and so it becomes habit to click 7 quick at one stop 
anyways thanks a lot
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Smooth
Posts: 1455
Location: Australia
Registered: 21 Jul 2004
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Re: enfuse workflow
Posted: 26 May 2008 at 19:35 GMT
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Speed things up!
3x Raptor SATA 10,000 RPM Harddrives 1x for Pagefile, 1x for Temp, 1x Master Drive.
Reading and writing to the same harddrive even partitioned is slowing things down.
Regards, Smooth 
www.smooth360.info
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