This filter maps a picture to an object (plane, sphere, box or
cylinder).
This filter is found in the image window menu under
Filters → Map → Map Oject.
12.7.2.
Preview domain
This preview has several possibilities:
Preview!
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, 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
Light tab.
Zoom buttons
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.
Show Preview Wireframe
Show Preview Wireframe: No comment.
12.7.3.
General Options tab
Figure 11.101.
“Map Object” general options tab
Map to
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.
Transparent background
This option makes image transparent around object.
Tile source image
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.
Create new image
When this option is checked, a new image is created with the
result of filter application, so preserving the original image.
Enable antialiasing
Check this option to conceal this unpleasant aliasing effect
on borders. When checked, this option lets appear two settings:
Depth: Defines antialiasing quality,
to the detriment of execution speed.
Threshold: Defines antialiasing
limits. Antialiasing stops when value difference between
pixels becomes lower than this set value.
12.7.4.
Light tab
Figure 11.102.
“Light”
tab options
Light Settings
Lightsource type: In this dropdown list,
you can select among Point light,
Directionnal light and No
light.
Lightsource color: Press this button to
open the Color Selector dialog.
Position / Direction vector
If "Point light" is selected, you can control there light
source Position (the blue point),
according to X, Y and Z coordinates. These three values range
from -1.00 to 1.00.
If "Directionnal light" is selected, these X, Y and Z parameters
controle the "Direction vector" (effect is not evident).
12.7.5.
Material tab
Figure 11.103.
“Material” tab options
Intensity Levels
Ambient: Amount of color to show where no
light falls.
Diffuse: Intensity of original color when
lit by a light source.
Reflectivity
Diffusion: Higher values make object
reflect more light (looks brighter).
Specular: Controls how intense the
highlights will be.
Highlight: Higher values make the
highlights more focused.
12.7.6.
Orientation tab
Figure 11.104.
“Orientation” tab options
Position
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.
Rotation
These three sliders make the object rotate around X, Y, Z axes
respectively.
12.7.7.
Box tab
This tab appears only when you select the Box object.
Figure 11.105.
“Box” tab options
Match Images to Box Faces
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.
Scale
These X, Y, Z three sliders allow you to change the size of
every X, Y, Z dimension of the box.
12.7.8.
Cylinder tab
This tab appears only when you select the Cylinder object.
Figure 11.106.
“Cylinder” tab options
Images for the Cap Faces
The name of this option is self-explanatory. Images must be
present on your screen when you call the Map Object filter.
Scale
radius: This slider and its input boxes
allow you to control the Cylinder diameter. Unfortunatly, 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.
