Click to begin an analysis of the input clip and calculate a corner pin. Interrupting the analysis will not delete the corner pin keys that have already been calculated.

When enabled, this toggle causes the effect to update the time line and render a freshly analyzed frame in the Viewer so you can see the progress of the effect.

Note:  Disabling this control may speed up the general analysis.

Click to delete all key frames from the corner pin controls, allowing you to force a re-analysis if you feel the need to.

This controls the range of frames any analysis runs over:

• Specified Range - reads the Analysis Start and Analysis Stop fields for the range of frames to analyze.

• Source Clip Range - automatically determines the range of frames to analyze from the length of the clip attached to the Src input.

The first frame analyzed if AnalysisRange is set to SpecifiedRange.

The last frame analyzed if AnalysisRange is set to SpecifiedRange.

This controls whether F_Steadiness is smoothing the shot while keeping the overall camera motion, or locking the shot to a single frame to completely remove camera motion. It can be set to:

• Incremental Lock - calculates the pin that takes each frame to the lock frame. This calculates the pin by working from the lock frame out to each frame, calculating the GME between each frame incrementally and accumulating it to create the corner pin.

• Absolute Lock - this also calculates a pin that takes each frame to the lock frame. However, it does so by doing GME directly from the frame in question directly to the lock frame.

• Smooth - in which case, the shot is smoothed for a range of frames described by the Smoothing control. Use Smooth to keep the overall camera motion, but to smooth out sharp bumps and kicks.

Indicates whether the calculated corner pin can include a scaling factor.

Indicates whether the calculated corner pin can include rotations.

Indicates whether the calculated corner pin can include translations on the x and y axes.

Indicates whether the calculated corner pin can include perspective transforms.

Analysis Region

This is the region analyzed to calculate the four-corner pin. This is especially useful when doing any form of frame locking, in which case, go to the lock frame, look at the reference clip and position the box over the area you want locked.

• Analysis Region BL - controls the position of the bottom left corner of the analysis region.

• Analysis Region TR - controls the position of the top right corner of the analysis region.

Advanced

Controls the range of frames to average motion over when Mode is set to Smooth.

Controls the frame locked to when Mode is set to either of the lock modes.

Note:   Frame 0 for F_Steadiness is frame 1 in NukeX. Therefore, if you are looking at frame 3 in the Viewer and want to use that frame as the lock frame, you need to enter 2 as the LockFrame value.

Controls the time/accuracy trade off. The higher this is, the slower the analysis, but you have a better likelihood of a good result.v

Sets the filtering quality.

• Low - low quality but quick to render.

• Medium - uses a bilinear filter. This gives good results and is quicker to render than High filtering.

• High - uses a sinc filter to interpolate pixels giving a sharper repair. This gives the best results but takes longer to process.

When enabled, the inverse of the calculated four-corner pin is used during render. This works best with the lock modes, and can be used to track static locked-off plates back into a shot.

Automatically fills in the black gaps at the edges of the Src by scaling the output image up. A value of 1 scales the image up until no black is visible, whereas a value of 0 disables scaling and leaves the black edges untouched.

Advanced > Four Corner Pin

The bottom left corner pin calculated during the analysis pass.

The bottom right corner pin calculated during the analysis pass.

The top left corner pin calculated during the analysis pass.

The top right corner pin calculated during the analysis pass.