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This filter maps a picture to an object (plane, sphere, box or
cylinder).
12.7.2. Activate the filter
This filter is found in the image window menu under
→ → .
This preview has several possibilities:
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Preview!
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Preview!: Preview is automatic for some
options but you will have to press this button to update Preview
after modifying many other parameters.
When mouse pointer is on Preview and the Light tab is selected,
it takes the form of a small hand to grab the blue
point which marks light source origin and to
displace it.
This blue point may not be visible if light source has negative
X and Y settings in the Light tab.
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Zoom buttons
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Zoom buttons allow you to enlarge or to
reduce image in Preview. Their action is limited, but may be
useful in case of a large image.
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Show Preview Wireframe
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Show Preview Wireframe: Puts a grid over
the preview to make displacements and rotations more easy. Works
well on a plan.
12.7.3.2. General Options tab
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Map to
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This drop-down list allows you to select the object the image
will be mapped on. It can be a Plane, a
Sphere, a Box or a
Cylinder.
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Transparent background
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This option makes image transparent around the object. If not
set, the background is filled with the current background color.
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Tile source image
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When moving Plane object and displacing it with Orientation tab
options, a part of the image turns empty. By checking the
Tile source image, source image copies
will fill this empty space in. This option seems not to work
with the other objects.
![[Note]](images/note.png)
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This option works with “Plane” only.
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Create new image
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When this option is checked, a new image is created with the
result of filter application, so preserving the original image.
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Enable antialiasing
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Check this option to conceal this unpleasant aliasing effect
on borders. When checked, this option lets appear two settings:
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Depth: Defines antialiasing quality,
to the detriment of execution speed.
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Threshold: Defines antialiasing
limits. Antialiasing stops when value difference between
pixels becomes lower than this set value.
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Light Settings
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Lightsource type: In this dropdown
list, you can select among Point light,
Directionnal light and No
light.
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Lightsource color: Press this button to
open the Color Selector dialog.
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Position
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If “Point light” is selected, you can control there
light source Position (the blue point),
according to X, Y and Z coordinates.
If “Directional light” is selected, these X, Y and
Z parameters control the “Direction vector”
(effect is not evident).
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Intensity Levels
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Reflectivity
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Diffusion: Higher values make object
reflect more light (looks brighter).
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Specular: Controls how intense the
highlights will be.
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Highlight: Higher values make the
highlights more focused.
12.7.3.5. Orientation tab
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Position
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These three sliders and their input boxes allows you to vary
object position in image, according to the X, Y, Z coordinates
of the object upper left corner.
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Rotation
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These three sliders make the object rotate around X, Y, Z axes
respectively.
This tab appears only when you select the Box object.
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Match Images to Box Faces
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This function name is self explanatory: you can select an image
for every face of the box. These images must be present on your
screen when you call the Map Object filter.
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Scale
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These X, Y, Z three sliders allow you to change the size of
every X, Y, Z dimension of the box.
This tab appears only when you select the Cylinder object.
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Images for the Cap Faces
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The name of this option is self-explanatory. Images must be
present on your screen when you call the Map Object filter.
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Size
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Radius:
This slider and its input boxes let you control the
Cylinder diameter. Unfortunately, this setting works on the
image mapped onto the cylinder and resamples this image to
adapt it to the new cylinder size. It would be better to
have the possibility of setting size cylinder before mapping
so that we could map a whole image.
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Length: Controls cylinder length.
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