1.Organize study records after class.
Filter
The numbers below represent the color saturation, and the values in the square area are the average of the colors.


Try to understand resize type.

About the blur node.

Different degrees of blurring, four different filter channels, Gaussian blur is defaulted, the blur is more average, the effect of box has square edges, and the triangle blur calculation method is different, which is to feel the blur of the pixel distance.The quadratic blur is more severe and smooth.


When moving the graph, there is still a blur on the outside of the box, due to the crop to format.
About the motion blur .
with motion blur chain.


The visual residue of the object’s motion makes the motion seem more realistic or exaggerated. When compositing, by calculating the motion vector, each frame is calculated, the sampling rate is determined, and how many ghosts need to be superimposed.


shuffle node
Changing the RGBA channels, adjusting the channel combination, some changes will occur. And pay attention to the output port, when the output port is the same, follow the output data in the lower half. Commonly used to separate multi-channel layers.




Defocus node
Different types of blurring due to different situations are implemented in Nuke. If you use the blur node, the blur is average. With defocus node, it’s not that even. A channel is similar to a blur.
2. Preparation of assignments
