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The RBD I/O SOP is designed to streamline the common operation of packing a RBD stream, saving it to disk, and giving an option to use the saved sequence rather than the live sequence.
RBD fractures consist of the geometry, the constraint geometry and the proxy geometry.
Store an unpacked sequence of geometry which is just the geometry. In this mode, the second and third outputs will always be empty.
Packed Geometry, Constraints and Proxy
Pack the incoming geometry, constraints and proxy geometry into three packed primitives. This triplet of packed primitives is then saved as a single sequence of geometry.
In this mode, the first, second and third outputs will be the unpacked geometry, constraints and proxy geometry respectively.
Geometry and Points: Store a rest geometry and a sequence of simulation points. The first output is the rest geometry transformed by the cached points. This allows for more efficient disk usage and load time compared to caching the transformed pieces per frame. In this mode, the second and third outputs will always be empty.
Load from Disk
Loads the geometry from file.
If you start a render, it will always use the Import option, ignoring this parameter.
How this node reads/writes the geometry to/from the disk file.
This parameter is only enabled when Load From Disk is disabled.
Writes the file if it doesn’t exist, reads it if it does exist.
This is useful for caching, where the node will write the cache to disk the first time it cooks, and use the cache file from then on.
To force a refresh of the cache, manually delete the file on disk.
Reads the geometry from the file. If the node’s input is connected, it’s ignored.
Writes the input geometry to disk.
No file access will occur. Pass through the input geometry to the output, like a Null surface node.
Where to load the fields from when in Load from Disk mode. This also controls where the Geometry ROP will save the fields.
Only available when Storage Type is set to Geometry and Points. Where to load the rest geometry from when in Load from Disk mode. This also controls where the Geometry ROP will save the rest geometry.
Save to File
Load From File