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snapshot [-constructionHistory boolean] [-endTime time] [-increment time] [-motionTrail boolean] [-name string] [-startTime time] [-update string] [objects]

snapshot is undoable, queryable, and editable.

This command can be used to create either a series of surfaces evaluated at the times specified by the command flags, or a motion trail displaying the trajectory of the object's pivot point at the times specified.

If the constructionHistory flag is true, the output shapes or motion trail will re-update when modifications are made to the animation or construction history of the original shape. When construction history is used, the forceUpdate flag can be set to false to control when the snapshot recomputes, which will typically improve performance.

Return value

string[]names of nodes created or edited: transform-name [snapshot-node-name]

In query mode, return type is based on queried flag.


constructionHistory, endTime, increment, motionTrail, name, startTime, update
Long name (short name) Argument types Properties
-startTime(-st) time createqueryedit
time to begin copying target geometry Default: 1.0
-endTime(-et) time createqueryedit
time to stop copying target geometry Default: 10.0
-increment(-i) time createqueryedit
time increment between copies Default: 1.0
-constructionHistory(-ch) boolean createquery
update with changes to original geometry
-name(-n) string createqueryedit
the name of the snapshot node. Query returns string.
-update(-u) string createqueryedit
This flag can only be used if the snapshot has constructionHistory. It sets the snapshot node's update value. The update value controls whether the snapshot updates on demand (most efficient), when keyframes change (efficient), or whenever any history changes (least efficient). Valid values are "demand", "animCurve", "always". Default: "always"
-motionTrail(-mt) boolean create
Rather than create a series of surfaces, create a motion trail displaying the location of the object's pivot point at the specified time steps. Default is false.

Flag can appear in Create mode of command Flag can appear in Edit mode of command
Flag can appear in Query mode of command Flag can be used more than once in a command.

MEL examples

// Evaluate and display "sphere1" as it appears
// at times 0, 10, 20, and 30.  Modifications to sphere1
// will update the copies.
snapshot -constructionHistory on -startTime 0 -endTime 30 -increment 10 sphere1;

// Evaluate and display "sphere1" as it appears
// at times 0, 10, 20, and 30.  Further modifications to sphere1
// should have no affect on the copies since constructionHistory is off.
snapshot -constructionHistory off -startTime 0 -endTime 30 -increment 10 sphere1;