Improving SmoothCam Filter Results and Troubleshooting

When you use the SmoothCam filter, keep the following points in mind:

Making Sure Clips Are Analyzed

A clip can have an Unanalyzed status for several reasons, such as:

  • You stopped the analysis for that particular clip in the SmoothCam Browser column.

  • You stopped the processing queue before the clip was analyzed.

  • The processing queue is paused, so the clip has not yet been analyzed.

  • You ran out of disk space before the motion analysis file could be written.

Improving SmoothCam Filter Results

The following kinds of footage can generate inaccurate motion analysis data, leading to improper motion compensation when the clip is rendered.

Problem
Solution
A lot of motion blur—especially in interlaced footage
Shoot progressive footage when possible and avoid rapid camera movements.
Footage shot with a wide-angle lens—the lens distorts the source pixels and the SmoothCam analysis does not compensate for this.
Don’t use a wide-angle lens or any other filter that distorts pixels around the edge of the frame.
3:2 pull-down, advanced pull-down, or duplicate frames
Remove pull-down or duplicate frames before applying the SmoothCam filter or submitting clips to the SmoothCam Analysis processing queue.
Progressive footage converted to interlaced footage creates softer SmoothCam results than original interlaced footage.
Apply the SmoothCam filter to the original progressive footage. If you need to combine interlaced and progressive footage, create a mixed-format sequence and use original progressive footage in your sequence when possible.
Clips with speed changes and the SmoothCam filter applied don’t appear smooth when Frame Blending is enabled.
Nest the sequence containing a clip with the SmoothCam filter applied, then apply the speed changes and enable the Frame Blending option for the nested sequence. For more information, see Frame Blending, Optical Flow, and Motion Blur.