Trapcode Particular

Motion Blur

Motion Blur gives particles that move really fast a smooth look, like a camera does.


Technical note about render time: Motion Blur produces significantly more particles, which can make projects more memory intensive. Additional particles are inserted before rendering to create the blurred frame. This also means that per-particle transfer modes are applied for each blur level, which produces even more extra particles.

moblur-offcmoblur-onc
Left to right, Motion Blur turned off and on.

 

Motion Blur

You can tell Motion Blur to be Off, or enable it with either On or use Comp Settings (default).

When the Comp Settings option is selected, Particular's Shutter Angle and Shutter Phase controls are disabled. This is because the Shutter Angle and Phase values from the After Effects composition are used. These values are located in After Effects' Composition > Composition Settings > Advanced menu. To activate Motion Blur with Comp Settings, the comp Motion Blur switch AND the layer Motion Blur switch must be turned on.

 

Shutter Angle

Active when Motion Blur is set to On. Shutter Angle sets how long the virtual camera shutter stays open when a picture is taken. This controls the 'streak-length' or 'blur-length' of particles. High values set a longer particle streak. Low values set a short streak.

 

Shutter Phase

Active when Motion Blur is set to On. Shutter Phase offsets the point in time when the virtual camera shutter opens.

 

Samples

This samples the particle's position and rotation at a number of points during the time the shutter is open. Useful if particle motion is curvy, like when using Turbulence or Spin. Default value is 16. Higher Samples levels will take longer to render.

 

Opacity Boost

When Motion Blur is active, the particle is 'smeared' out. This smearing can make the particle lose its strength and become less opaque. Opacity Boost can counteract that loss. Higher values mean there is more opacity added to the particles. Opacity Boost is useful when creating sparks, or any particle that acts as a light-emitter.

 

Disregard

Sometimes not everything in the composition should be motion blurred. With Disregard, some parts of the particle simulation can be ignored when Motion Blur is computed.

The four Disregard settings are:

  • Nothing - Nothing in the simulation is disregarded.
  • Physics Time Factor (PTF). Disregards Physics Time Factor. When this mode is selected, the Motion Blur from the explosion is unaffected by the standstill in time. Useful for effects such as freezing time in an explosion.
  • Camera Motion. In this mode, the camera motion does not contribute to Motion Blur. Perhaps the most useful case is when Shutter Angle is very high and particles are very long. In this situation, if the camera is moved, that motion will cause a lot of blur unless Disregard is set to Camera Motion.
  • Camera Motion & PTF. Neither camera motion or PTF contribute to Motion Blur.