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Author Topic: Scanning birds or stuffed animals  (Read 13982 times)

Mfranquelo

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Re: Scanning birds or stuffed animals
« Reply #15 on: May 27, 2014, 04:32:18 PM »
Hmm.. mesh is pretty messed up  :( thanks for sharing!
 I hope i can try soon with a stuffed bird, when work times allow me.

Lambo

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Re: Scanning birds or stuffed animals
« Reply #16 on: May 27, 2014, 08:21:10 PM »
I am about to scan a (live) dog so I will let you know how that comes out if you like.
Leo

Mfranquelo

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Re: Scanning birds or stuffed animals
« Reply #17 on: May 27, 2014, 10:16:03 PM »
Yes that would be amazing Leo,
 :)

FoodMan

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Re: Scanning birds or stuffed animals
« Reply #18 on: May 28, 2014, 10:32:49 AM »
this was a stuffed Lizard I did a year ago..
 :)
http://s000.tinyupload.com/index.php?file_id=47217396877660823495

f/

Mfranquelo

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Re: Scanning birds or stuffed animals
« Reply #19 on: May 29, 2014, 01:06:52 AM »
That looks promising :), can we see it without texture ?

FoodMan

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Re: Scanning birds or stuffed animals
« Reply #20 on: May 29, 2014, 10:50:23 AM »
sure..






Mfranquelo

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Re: Scanning birds or stuffed animals
« Reply #21 on: May 29, 2014, 03:19:59 PM »
Wow thats a great scan  :), is it raw data ?


FoodMan

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Re: Scanning birds or stuffed animals
« Reply #22 on: May 29, 2014, 03:31:57 PM »
yes it is... you can see the eyes did not came out good.. :P. due to high reflections... so i simply replaced them for the render..

also a little note, I sprayed the lizard with a matte photo spray prior taking the photos.. because the skin was slightly reflective..

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Lambo

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Re: Scanning birds or stuffed animals
« Reply #23 on: May 29, 2014, 08:20:24 PM »
Pretty nice, too bad we can not spray people with that matte spray :) It would help on the hair, etc.
Leo

FoodMan

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Re: Scanning birds or stuffed animals
« Reply #24 on: May 30, 2014, 08:23:11 AM »
what could work for making hair matte... would be some dry cleaning hair spray... in the past I once used one and found it made the hair very matte.. lol

Lambo

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Re: Scanning birds or stuffed animals
« Reply #25 on: May 30, 2014, 09:52:27 PM »
That is actually a good idea, I didnt know this existed :)
I will have to try some. Thanks.
Leo

FLuca

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Re: Scanning birds or stuffed animals
« Reply #26 on: June 23, 2014, 10:48:04 PM »
did anyone tried polarizing filters?
I understood from previous posts that it could help with hair but never tried it yet
problem is cost with multiple cam rig but if it save time it may worth it
Fred Lucazeau - Body Scan - www.another-me.fr
Sketchfab gallery: https://sketchfab.com/fredlucazeau

Lambo

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Re: Scanning birds or stuffed animals
« Reply #27 on: June 25, 2014, 12:55:32 AM »
Hi guys, I will post tonight the pictures of the scan I just did of a chihuahua dog (alive :) It came out ok for the fact that the little guy is extremely small for the setup I have that is aimed at full body scans, so the dog only filled a very small portion of the screen and also was not seen by may cameras.
But just a comment on the polarizing  lenses, as Fluca said, the cost is the main problem, specially because every cheap polarizer lens reduces the quality of the picture considerably (you can do a test shot and then zoom in and compare with the stock picture and you will be amazed at how bad it looks) so the ones you must use are going to be at least $40 per lens. :(
Another thing to consider is that you would have to increase the lighting a reasonable amount to compensate for the added darkness the lenses will create :)
Leo

Lambo

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Re: Scanning birds or stuffed animals
« Reply #28 on: June 25, 2014, 09:21:25 AM »
Ok here are the promised pictures of the scan.
You can see that the dog is pretty small in the frame and she was even smaller in other pictures, not even present in many and Photoscan was not able to align 4 cameras because of it.
With all that I was able to get the dog good enough to reconstruct it and print it fine.
Leo

Sparse Cloud, only 6000 points:


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mala

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Re: Scanning birds or stuffed animals
« Reply #29 on: June 25, 2014, 04:28:08 PM »
Cool dog scan :)

Regarding polarising filters, I found from experience that it does help somewhat with hair, though i use linear polarisers on both lights and cameras.... so maybe a bit different to what you may be after.

In general I would be tempted to say that most studios would actually try to avoid scanning hair at all for hi res capture(by using a hair net/hat) if the final assest is likely to used in a feature/game where the hair would need to be animated anyway.....and hair system would be used to recreate it.

Things are changing on this front, it looks like there will be some intersting papers regarding hair at Siggraph.

Of course if you are scanning for 3D print or low poly asset then it's a different matter..if hair is tied back or relativly "dense" then polarisng may improve results.... but I would imagine if it's "wispy locks" it won't help as this a different problem.

Cheers,
mala