Autodesk 12812-051462-9011 User Guide 3 - Page 491

Using Ink 'n Paint You can use Ink 'n Paint on multiple objects, but in general, it tends to work best if you do the following: 1 Collect the objects for cartoon rendering into a single surface model such as an Editable Mesh. 2 Assign different material ID values on page 8038 to portions of the model you want to color differently. Typically, you would do this at the Element sub-object level, although you can certainly apply different material IDs to faces and polygons as well. 3 Create a Multi/Sub-Object material on page 5720. In it, create a sub-material for each of the colors in the model. Make each sub-material an Ink 'n Paint material, then assign colors and maps using each sub-material's Paint controls. If necessary, adjust the Ink controls as well. TIP ActiveShade on page 6102 works with the Ink 'n Paint material, and can be a good way to preview the material's effect. Troubleshooting 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 smaller 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. Try 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 when Variable Width is on. 5746 | Chapter 19 Material Editor, Materials, and Maps