Graphics Reference
In-Depth Information
optimal number of pictures has been re-
ported as somewhere between 20 and
55 pictures, depending on the object. If
you are using the iPad or iPhone you are
limited to 40 images.
Capturing detail
If you need to capture fine details, first
capture the entire object at a distance
that fills the frame. After you have com-
pleted a full sweep of the entire object,
then move in and capture the details.
Make sure that you maintain the 50%
overlap between the distance photos
and the detail photos, so that the soft-
ware can still stitch the photos together.
Be careful when transitioning from shots
of the whole model to detail shots. Make
sure to have transition photos that cap-
ture 50% overlap between the transi-
tions. Do not suddenly zoom in on the
detail, as this will either cause your scan
to fail or produce poor results.
If your Catch fails, consider capturing the
entire object in one scan and then cre-
ating a new scan with the camera
zoomed in on the fine detail.
Don't be discouraged if your first few Catches
do not come out as planned; keep practicing
and you will quickly get a feel for the process
and how to minimize problems.
Do not edit or crop photos be-
fore uploading! Any size, color,
or tone alterations will confuse
the reconstruction software
and lead to less than optimal
results. Upload your photos to
the cloud server as they were
originally taken.
Uploading Your Photos to the
Cloud
Take your photos using the process outlined
above and then submit them to 123D Catch
via your application of choice.
If you used the iPhone or iPad application
Submit the photos via the iPhone/iPad
app ( Figure 6-8 ). The app will inform you
when it has finished processing your
123D Catch scan, or photoscene .
By taking a whole series of close up
pictures just at one level, I got really
good 3D detail. Really good repro-
duction of very, very small depth.
Michael
Curry
“skimbal”
With some large objects, like statues, it
may not be possible to get both very fine
detail and the entire object. You may
need to capture the fine detail in a sep-
arate Catch. You will need to experi-
ment. Occasionally, we have had catches
done this way completely fail on the
iPhone application, and a large white X
will appear after processing the Catch.
Because it can take some time to see
how your Catch turned out, always do
one or two Catches of an object (espe-
cially if you are on a trip and may not
return to it), just in case the first one fails.
 
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