Motion Blur lecture resources

Here you can download the recordings of the two sessions on Wed/Thu.

Download Wed Session

Download Thu Session

Download (Maya scene, Nuke file)


<Motion blur>
1. Pixel-analysis based motion blur
Pros:
-Easy to use, cheap, fast
-can even work for stop-motion animation
-Just try and see if it works

Cons:
-Works well for linear motion but not adequte for curved motion. (rotation)
-Can generate artifacts
when lack of pixel info. . ( when things are entering the frame or exiting the frame)
with Reflection/Refraction.
when Lighting changes

Best when passes are seperate ( character against black background)



2. Motion-vector based motion blur

What to check?
- How long the motion trail
(duration of the motion blur - half frame is usually good )
- Deformation and Camera must be on.
-To have clean beauty AOV and working motionBlur AOV
go to the renderable camera and turn off Use Global Shutter option and use 0 and 0 for Shutter start/End.
- Red is for horizontal motion. Green is for vertical motion.
Negative value can be used.

- In Redshift, just by adding MotionBlur AOV takes care of setup. But make sure to use Output Raw Vectors option and turn ON Filtering.

-In Nuke, sometimes R and G need to be swapped.
It can flip back again even with Shuffle node (just strange).

Best when passes are seperate ( character against black background)