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This node unpacks the input geometry and proxy geometry, freezes it at a given reference frame, repacks it, and drives its packed transforms by extracting the transforms from the deforming pieces. This is useful if you want to activate objects after a specific frame (but use them as animated objects rather than deforming objects before then), or if you want objects to collide with RBDs.
If you're only wiring this node into the Collision Geometry input of the RBD Material Fracture node, make sure it’s the Proxy Geometry output rather than the high res Geometry output, since that’s where the active and animated attributes are set.
The frame at which the geometry will be “frozen”.
Specifies a list of attributes to transfer to the packed geometry.
Specifies a list of groups to transfer to the packed geometry.
Specifies how to compute the best-fit transform between the reference and target geometry.
Translation and Rotation
Finds the rigid transform that best aligns the points with the target geometry.
Translation, Rotation, and Uniform Scale
Allows the points to be uniformly scaled, in addition to being translated and rotated.
Translation, Rotation, and Non-Uniform Scale
Allows the points to be non-uniformly scaled, in addition to being translated and rotated.
Controls whether point velocities will be calculated for the geometry from this SOP, and the method of calculation. The instantaneous and integrated velocity calculations are described in Point Velocities.
Update RBD Constraints
Performs the same operation on the constraint geometry when enabled.
Configure Animated Static Object
Sets an “animated” point attribute with a value of 1 and a “active” point attribute with a value of 0.
The action button will create a RBD Configure SOP downstream from this node to better configure the properties of the RBD objects.
Input deforming geometry to be frozen, packed and transformed.
Proxy deforming geometry to be frozen, packed and transformed. The transforms will be extracted from this geometry if available.