motionPath

Go to: Related nodes. Attributes.

This is the motionPath node which is used for the motionPath animation to compute the position and orientation, of the animated object, by evaluating the curve connected to the geometryPath attribute at the value provided by the uValue attribute.

The basic node configuration for a motionPath animation is as follows:

1. Create a motionPath node.
2. Connect its geometryPath attribute to the curve node.
3. Connect its allCoordinates attribute to the translate attribute of the transform of the animated object.
4. Create an animCurveTL node and connect it to the uValue attribute of the motionPath node.
5. Add some keyframes to the animCurve.

      (animCurve)
                \
                 \
              (motionPath) --> (transform)
                 /
                /
         (curve)

flow

allCoordinates, bank, bankLimit, bankScale, flowNode, follow, fractionMode, frontAxis, frontTwist, geometryPath, inverseFront, inverseUp, normal, orientMatrix, orientationMarkerTime, positionMarkerTime, rotate, rotateOrder, rotateX, rotateY, rotateZ, sideTwist, uValue, upAxis, upTwist, updateOM, worldUpMatrix, worldUpType, worldUpVector, worldUpVectorX, worldUpVectorY, worldUpVectorZ, xCoordinate, yCoordinate, zCoordinate

Long name (short name)	Type	Default	Flags
uValue (u)	distance (double)	0.0cm
u parameterization value for evaluating the path curve
frontTwist (ft)	angle (double)	0.0deg
Angle of rotation about the FRONT direction
upTwist (ut)	angle (double)	0.0deg
Angle of rotation about the UP direction
sideTwist (st)	angle (double)	0.0deg
Angle of rotation about the SIDE direction
allCoordinates (ac)	double3	0.0, 0.0, 0.0
The computed world space position
xCoordinate (xc) distance (double) 0.0cm x-component of the current world space position
yCoordinate (yc) distance (double) 0.0cm y-component of the current world space position
zCoordinate (zc) distance (double) 0.0cm z-component of the current world space position
orientMatrix (om)	matrix	identity
The computed world space orientation vectors
rotate (r)	double3	0.0, 0.0, 0.0
The amount of world space rotations
rotateX (rx) angle (double) 0.0deg Angle of rotation about the X-axis
rotateY (ry) angle (double) 0.0deg Angle of rotation about the Y-axis
rotateZ (rz) angle (double) 0.0deg Angle of rotation about the Z-axis
rotateOrder (ro)	enum	0
The order of rotations for the rotate attr
flowNode (fn)	Message	n/a
For exchanging messages with a flow node during computation of the lattice point positions
geometryPath (gp)	Generic	NULL
The curve path data input to use
positionMarkerTime (pmt)	time	0film
Times of the position markers
orientationMarkerTime (omt)	time	0film
Times of the orientation markers
follow (f)	bool	false
A flag to determine whether or not the FRONT direction of the animated object(s) be aligned to the tangent of the path
normal (nr)	bool	false
OBSOLETE
inverseUp (iu)	bool	false
A flag to determine whether or not the UP direction of the animated object(s) be aligned to the inverse of the computed up
inverseFront (if)	bool	false
A flag to determine whether or not the FRONT direction of the animated object(s) be aligned to the inverse of the computed front vector
frontAxis (fa)	enum	1
An index (x=0, y=1, z=2) to specify which local-axis of the animated object is aligned as the front direction
upAxis (ua)	enum	2
An index (x=0, y=1, z=2) to specify which local-axis of the animated object is aligned as the up direction
worldUpType (wut)	enum	3
Indicates what to use as the world up vector
worldUpVector (wu)	double3
World up vector
worldUpVectorX (wux) double 0.0 World up vector X component
worldUpVectorY (wuy) double 1.0 World up vector Y component
worldUpVectorZ (wuz) double 0.0 World up vector Z component
worldUpMatrix (wum)	matrix	identity
World matrix for the up object
bank (b)	bool	false
A flag to determine whether or not the UP direction of the animated object(s) be affected by the curvature of the path
bankScale (bs)	double	1.0
Scale factor to amplify/reduce the banking angle
bankLimit (bl)	angle (double)	90.0deg
Maximum computed bank angle will be limited to this value
fractionMode (fm)	bool	false
When it is true the computation is based on the fraction of curve length instead of based on the parameter value
updateOM (uom)	bool	false
This flag is used internally to update the alignment of the orientation markers