Export Geometry Cache to Alembic

Streams a whole geometry cache out to an .abc file, one frame at a time, so peak memory equals a single frame no matter how long the cache runs.

When to use it

Streams a whole geometry cache out to an .abc file, one frame at a time, so peak memory equals a single frame no matter how long the cache runs.

Pins

Inputs

Pin	Type	Description
StreamingCache	Streaming Geometry Cache	The animated cache to write out, sculpt and all.

Settings

Setting	Type	Description
Mesh Name	Text	Meant to name the mesh inside the .abc. The cache writer never reads it, so typing here changes nothing about the file you get.
Flatten	True/False	Writes the whole cache as one mesh, with a face set marking out each material slot. That is the smaller, faster-reading file. Turn it off and you get a separate mesh per material section instead, which some older pipelines still want.
Start Frame	Whole number	First frame to write. Clamped to what the source actually has.
End Frame	Whole number	Last frame to write, counted in. Leave it at -1 to run through to the end of the source.
Rotation	Vector	Turns every frame as it is written, in degrees. The default quarter-turn is what takes MeshMorpher's Z-up over to the Y-up that Maya and Houdini expect. Zero it out and the cache opens lying on its back.
Scale	Vector	Scale applied along with the rotation. One negative component flips handedness, which is what the -1 on Y is there for.
Flip Mesh	True/False	Reverses triangle winding on the way out. Keep it on whenever Scale flips handedness, or the cache opens inside out with every surface facing away from you.
Invert Normals	True/False	Flips the normals as they are written. Reach for this only if the surface still shades inside out once winding and scale are sorted.
Use Custom Frame Rate	True/False	Sets the playback rate yourself instead of taking the one the source reports.
Custom Frame Rate	Number	Frames per second stamped on the file. Every frame in the range still gets written, so a lower number here plays the same animation slower rather than dropping anything.
Write Velocities	True/False	Writes how far each vertex moves between frames, which is what a renderer needs to produce motion blur.

Available in Mesh Morpher Graph and Mesh Morpher Studio.