shrinkWrap attributes
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Projection
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The following projection methods determine how each point of the wrapper object is projected onto the target object:
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Closest If No Intersection
- When enabled, Maya uses the
Closest projection method for points that do not hit the target object using the currently selected projection method. This option ensures that all points of the wrapper object are deformed to the target.
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Reverse
- When enabled, points on the wrapper object are projected in the opposite direction. For example, this option lets you project the wrapper along an axis in the negative direction.
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Bidirectional
- When enabled, projects the points of the wrapper object both backwards and forwards to see whether they hit the target object. If a point hits the target in both directions, the shortest distance is used.
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Offset
- Specifies the distance between the wrapper object and its target after the deformation has occurred. When you increase the
Offset value, Maya moves the points of the wrapper along the target's surface normal.
Tip: You can use
Offset
to fix interpenetrations between the wrapper and the target.
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Target Inflation
- Specifies the amount of inflation that is applied to the target object along its surface normal.
While
Target Inflation and
Offset produce similar results,
Target Inflation often produces a better deformation, despite some extra computational cost.
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Bounding Box Center
- When disabled (the default), the points of the wrapper object are projected toward the center of the target's local coordinate system. When enabled, the points of the wrapper are projected toward the center of the target's bounding box.
Note: This option is only available when
Projection is set to
Toward Center.
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Axis Reference
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Sets a reference for the coordinate system. You can select from
Target Local,
Deformed Local, and
Global.
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Along X, Y, Z
- Specifies the axis along which to project the wrapper's points. When multiple axes are selected, the projection occurs along the corresponding unit vector.
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Single Shrinkwrap Node
- When enabled, lets you treat all shrinkwrap objects as a single shrinkwrap node. Doing this applies the same settings across the group.
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Target Smooth Level
- Specifies the number of times Maya smooths the target object by adding divisions to the polygons on the mesh. The
Target Smooth Levels range is from 1 to 4. The higher the value, the smoother the object.
Falloff Controls
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Falloff
- When some points of the wrapper object hit the target object and other points do not, the
Falloff value smooths the deformation across this boundary. The higher the value, the smoother the boundary between the wrapper and the target.
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Falloff Iterations
- Specifies the number of falloff iterations that will be applied to the boundary between the wrapper and target.
Shape Preservation Controls
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Enable Shape Preservation
- Keeps the wrapper object as close as possible to its original shape, even while shrinkwrapping. When enabled (the default), Maya relaxes the edges of the wrapper to preserve their original length.
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Steps
- Specifies the number of times the relaxation is performed.
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Iterations Per Step
- Specifies the number of iterations per
Step. Iterations are the number of calculations occurring within a step. Accuracy increases with increased iterations.
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Method
- Lets you specify how the relaxation is applied to the wrapper object.
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Triangles
- Relaxes the edges of the triangulated mesh. This method preserves the wrapper object's shape and size.
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Edges
- Relaxes only the edges of the wrapper object.
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Reprojection
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After each relaxation step, the wrapper object is reprojected back onto the target object using the
Closest projection method. The following options let you control the reprojection.
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No Reprojection
- Turns
Reprojection off.
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Single Reprojection
- Reprojects the wrapper object onto the target object once, after all of the relaxation iterations. See
Iterations Per Step.
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Reprojection Per Step
- Reprojects the wrapper object onto the target object after each relaxation iteration. See
Iterations Per Step.
Smooth Target Controls
For more information on the
Smooth Target Controls, see
Mesh > Smooth.