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Fast and convenient
: Sometimes,
we are in quick need of placing some objects in our scene. Like a
tree or a creature in the background, a car on the road etc. If we
start creating each of these objects from scratch using the traditional 3d
editors, it would consume a lot of time. In such situations,
if we find a real world object we can create their replicas fast using
IBModeler.
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Cost effective: Capturing
3D data of any object is a complicated process and normally involves the use of costly
equipments like digitizers and 3D scanners.
IBModeler offers a cost
effective and a relatively simpler alternative. The same process can be done
here just with the help of a simple studio setup containing a rotating
stand and this software. What's more, there is no limitation on the size
of the object to capture. For bigger models, all you might need would be a
bigger rotating stand and perhaps more backdrop cloth to cover a wider
background region.
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Versatility
: The choice of the camera and even the studio setup are all upto the user.
The user can choose from a wide
range of digital cameras for taking
the photographs. And although IBModeler does give the facility of creating models fast using a tailormade setup, this
is not the only way you can create the models using this software. If
you decide to come up with a totally different way of taking the
photographs of the model, you can still use IBModeler to process them as long
as you can supply the camera position and view direction. Also, to speed up the process,
you can write a reusalble set of script instructions for IBModeler from your own
setup, rather than process all images manually.
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Capturing large and immovable objects:
If you are planning to create replicas of large or immovable objects like a statue at a public place,
a building of architectural importance, a vehicle or a large machine, you don't have the option of
bringing those objects to a digitizer.
For such cases, a photogrammetric software like IBModeler becomes the
only available option.
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No restriction on
the number of photographs required: With the recommended setup
that is integrated with IBModeler, you can have any number of photographs
(equal to or greater than five) to create the model. If you are not
using this setup, you can create a model with even one image. So although more
number of photographs from different possible angles would be better to get
more accurate outputs, IBModeler does not make it mandatory. It is
capable of giving you a model created from any number of photographs that you manage to supply.
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Number of photographs:
The user should try to provide the photographs of the object from all possible angles.
The more the number of photographs, more accurate will be the replica.
The section applying images to mold gives an example
of a setup which provides for an easy and quick way to capture the photographs of the model
from various angles.
The user can come up with
his own setups. But he should ensure that the target object has been covered
from all sides from where the object has a different and unique look.
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Polygon density:
3D objects require a lot of memory space. Their size may also
effect the speed at which they are rendered. The size of the 3D model will depend on the
number of polygons required to
define it.
IBModeler uses triangles to define the
output model. The number of these triangles will depend on the poly count selection used while
defining the mold file.
By increasing the
poly count, the precision of the output model can be increased. But at the same
time, the size of the model mesh data will increase. So there will always be
a tradeoff between the two.
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Accuracy of user input: To
create the replica of the model, the user has to supply various inputs. Like he needs to
identify the background region correctly in each image and also specify the camera position
and view direction for them (see applying images to mold
for details).
The accuracy of the output
model would be affected if these inputs are inaccurate.
