Time Filters

Where other filters manipulate objects in two or three dimensions, Time filters manipulate objects in the fourth dimension—time. These filters are most often used with moving footage.

Echo

Echoes an object’s motion by repeating frames. The result is that moving areas of an image leave a streaking trail behind as they move.

This filter causes rasterization in 3D groups.

Parameters in the Inspector
  • Delay: Sets the amount of delay between echoes. Values range from 0 to 1. A value of 0 is a zero frame echo, and a value of 1 represents a 60-frame echo.
  • Number: Sets the number of echoes.
  • Decay: Sets the amount of time it takes for an echo to decay.
  • Amount: Sets the relative opacity of each echo.
  • Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls

The HUD contains the following controls: Delay, Number, Decay, and Amount.

Scrub

Moves a virtual playhead around a clip, allowing you to change the timing of the clip without moving it in the Timeline. Additionally, this filter allows you to animate the offset parameter, often with interesting results. Try adding the Scrub filter to a clip, then applying the Randomize behavior to the Frame offset, with the “Offset from” parameter set to Current Frame. Also, you can create a hold frame by setting Offset to First Frame, then using “Frame offset” to find the frame you wish.

Important: Scrub does not affect clip audio.

This filter causes rasterization in 3D groups.

Parameters in the Inspector
  • Frame offset: Sets the offset of the virtual playhead.
  • Frame Blending: Turns the blending between frames on and off.
  • Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls

The HUD contains the following controls: Frame offset, Offset from, and Frame Blending.

Strobe

Strobes the image by holding frames for a set duration. The effect is that moving images appear to skip frames as they play.

Parameters in the Inspector
  • Strobe Rate: Sets the number of frames of each strobe.
  • Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls

The HUD contains the following control: Strobe Rate.

Trails

Draws light or dark trails following an object’s movement. This filter is only effective with moving images.

This filter causes rasterization in 3D groups.

Figure. Canvas showing effect of the Trails filter.
Parameters in the Inspector
  • Duration: Sets the duration of the trails.
  • Echoes: Sets the number of echoes trailing behind.
  • Decay: Sets whether the trails decay over time or disappear at the end of the duration.
  • Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls

The HUD contains the following controls: Duration, Echoes, Decay, and Trail On.

WideTime

Similar to the Echo filter, but WideTime holds frames both before and after the current frame to stretch the image’s motion out in time.

This filter causes rasterization in 3D groups.

Parameters in the Inspector
  • Duration: Sets the number of frames before and after the current frame that are blended.
  • Decay: Sets the amount of time the added frames are held.
  • Amount: Sets the amount of opacity of the delayed object being overlaid. Values range from 0 (no reduction) to 1.0 (transparent).
  • Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls

The HUD contains the following controls: Duration, Decay, and Amount.