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1612 Chapter 16: Material Editor, Materials, and Maps
• Intersection B ias—When Only Adjacent Faces is
turned off, use this to adjust any artifacts that
appear at the b oundary b etween two objects
w ith different material IDs. Default=0.0.
Ma p controls—There are map controls for each
of the ink components: Width, Outline, Overlap,
Underlap, SmGroup, and Mat ID. These work
thesameastheydoforthematerial’spaint
components, as described above.
Mapping the outline and overlap components to simulate the
look of drawing on paper
Troubl eshooting
Here are some commonly encountered problems,
and potential solutions:
• Internal ink lines are missing.
The Overlap bias is probably too high. Decrease
it. If Underlap is turned on, this might also have
too high a bias.
Another possible reason is that you have a
self-intersecting object, or an object built
by attaching s maller objects, thus creating
intersecting faces. In this case, set up the objects
to use the Mat ID or SmGroup ink components.
If elements already have differing material IDs,
try turning off Only Adjacent Faces.
• Ink looks sloppy on sloping parts of the object.
The Overlap or Underlap bias might be too low.
Tr y increasing it.
• Ink looks sloppy between interpenetrating
objects.
Find out which ink component is the sloppy
one. Then adjust its bias control.
• Ink lines disappear or are too narrow w hen
Var i a b l e Widt h i s o n .
Turn on Clamp. You can also try to see if
reducing the lig hting level helps. Or, you can
try turning off Var iable Width, then assigning
a Falloff map (page 2–1670) to the Ink W idth
component.
Tip: To isolate which ink component is causing a
problem, you can t ry assig ning each component a
different, distinc tive (and easy to read) color, then
rendering the image.
Wa rn in g : Ink ’n paint will only give correct results when
rendered from a camera or perspective view. It does not
work in orthographic views.