# 网格序列缓存修改器¶

## 选项¶

Velocity Attribute

The name of the Alembic attribute used for generating motion blur data; by default, this is .velocities which is standard for most Alembic files.

Velocity Unit

Defines how the velocity vectors are interpreted with regard to time.

Frame

The velocity unit was encoded in frames and does not need to be scale by scene FPS.

Second

The velocity unit was encoded in seconds and needs to be scaled by the scene FPS (1 / FPS).

Velocity Scale

Multiplier used to control the magnitude of the velocity vector for time effects such as motion blur.