Specifies whether this renderer has a per-object motion vector pass.
If set to true, this object will have a per-object motion vector pass rendererd (in addition to the default camera reconstruction motion vectors). Motion vectors track the per-pixel object velocity from one frame to the next. Using this information you can apply specific Image Effects such as motion blur or temporal anti-aliasing.
Additional resources: DepthTextureMode.MotionVectors, SkinnedMeshRenderer.skinnedMotionVectors, PassType.MotionVectors, SystemInfo.supportsMotionVectors.