Animation
Enable this option to import animations synchronously to those saved in the Alembic file.
Use this setting to define the starting point at which the Alembic animation should be played in Cinema 4D. This can be useful, for example, if animations exported from other applications (that may start at frame 1 instead of frame 0 as in Cinema 4D) are not played synchronously with Cinema 4D. The higher the value, the farther the animation will be pushed back in time and vice-versa.
This value defines the FPS with which the Alembic animation is imported. The speed with which objects move will remain constant and the number of frames per animation time span will be modified.
If you have an Alembic file that was saved without intermediate frames, it would be difficult for Cinema 4D to calculate the correct motion blur. This option can be enabled to create a linear interpolation between the images (as well as between existing intermediate frames). This works for PSR animations for all objects, camera settings, point positions (mesh, SDS, curves (splines or hair with constant point counts), vertex colors and vertex maps).
An option of the same name can be enabled in the Alembic object at the object level.