ReelSmart Motion Blur Examples

ReelSmart Motion Blur (RSMB) Shake Examples.

NOTE: You need RSMB 3.0 for these examples.

This directory contains several projects to help explain features of RSMB.

Important: These tutorials assume you have read the manual that was put on your disk with the plugin upon installation.

1_RSMB3.shk

Simple example of applying RSMB3 to a piece of footage.

To do: Play with the motion blur amount to increase or decrease the amount of motion blur.

2_RSMB3WithCorrection.shk

There are two image sequences used in this example (see the FileIn nodes 'HandDark' and 'HandCorrectedForTrack' to view the two sequences). The footage to be blurred, 'HandDark' is dark and does not track well. The comp labelled "Problem Shown" shows that motion blur is not added because the footage is too dark for RSMB's tracking to "see" properly. In "Problem Corrected" a brighter version of the footage is used for the RSMB's tracking srouce. Note the difference in the motion blur added to the scene (expecially in the first frame).

RSMB PRO examples

3_RSMB3ProWithLayers.shk

This sample project shows how, with RSMB Pro, you can use a matte to separate foreground and background for even better results when an object in front passes other objects. Compare the difference between regular RSMB (the "Problem Shown" node) and using RSMB's foreground layer separation (the "WIth Layer Separation" node). The matte movie used to separate the footage into foreground and background layers was rotoscoped by hand (you can view the matte source by selecting "FG1 Matte" for the Display menu in the "With Layer Separation" node).

In particular, note how the motion of the hand affects the blurring of the neck in the Problem Shown node. This inappropriate blurring is corrected in the "With Layer Separation" comp.

4_RSMB3WTrackHelp.shk

This sample project shows how, with RSMB Pro, you can get better results by guiding RSMB the use of a few judicial Track Points or Shake's rotosplines.

The composition "Problem Shown" exhibits what happens with regular RSMB. Note that the motion blur does not follow the motion of the footage in the lower left corner on the first frame. The problem is most apparent on the second frame of the footage.

The composition "Track Help with Points" shows how you can guide RSMB.. in this case with 8 tracking points.
For you to do and notice:

Note that the Use menu for for RSMB's Track Points 0 through 7 have been set to "Main_BG"
Note that the motion blur, especially on the second frame, has been corrected.
To see the RSMB's track points, Draw Geom to All. To turn off, set Draw Geom to None.
Because we've helped with tracking guidance, we've set the Motion Sensitivities to 100.

The composition "Track Help with Splines" shows how you can guide RSMB.. in this case with 4 splines.
For you to do and notice:.

The splines have been animated to follow the salient features
The splines' "UseSpline" setting is set to 1 (this is the default)
The splines' "WhichLayer" setting is set to Main_BG (this is the default).
Note that the motion blur, especially on the second frame, has been corrected.
To see which frames that RSMB's is using which splines for guidance help, Draw Geom to All. To turn off, set Draw Geom to None. Note also that RSMB must be have the UseSpline set to 1 for a spline at both the current frame and the frame used to track from (which is either the previous or next frame, depending on RSMB's settings).
Because we've helped with tracking guidance, we've set the Motion Sensitivities to 100.

5_RSMB3WithGeomOnly.shk

This sample project show how, with RSMB Pro, you can add motion blur by simply using the movement of guiding geometries (either track points or splines). To illustrate this point, the motion blur in this example has been applied to a still image.

For you to do and notice:

Note that RSMB's Image Track checkbox has been turned off.
Note that the Motion Sensitivity is set to 50, limiting the extend of the applied motion blur. Turn the Motion Sensitivity to 100 and note that the motion blur is now applied to the entire image.

7_RSMB3WithVectors.shk

This project shows how to blur an object using supplied motion vectors. The motion vectors will most probably come from another source, such as a 3D animation system. Note that the alpha channel for the vectors is set to zero where we do not know the motion (because these are areas where the object is not present).

8_RSMB3Graph.shk

In this example we wish to motion blur a color corrected version of an image sequence on disk without going through the hassle of writing the color corrected sequence to disk first.

The RSMBGraphProblem node has the same color corrected node connected to the two inputs of RSMB3Graph. Because of Shake's limitation of not being able to retrieve two frames from the same node at two different times, this will not work. The RSMB3GraphCorrect node has the correct setup: the whole process graph is duplicated and fed into the RSMB3Graph node.