Homework:
At first, I kept failing and the cards did not follow the tracking movement more successfully. So I had to spend a whole day to fix it. After summing up, I think the main reason for my failure was the wrong use of the lensdistortion.
So here is my summary of the correct way to use it.
① This aberration is the lens aberration data given to the pre-shoot, we have to make full use of. In analysis at detect (preview can see the line preview) and then at keys1 solve.
②This is copied from ①, because I missed this step, resulting in tracking itself without aberration data.
③The important thing is to connect the source to the scanlinerender so that it can be corrected. (I previously connected to the bg card does not show)
Also, care must be taken to open it with nukeX, otherwise the lens will not work.
When tracking to pay attention to the timeline, whether the 249 frames chased out (once I only chased 100 frames led to the failure of the tracking later)
Class note:
In this lesson, we learned about project.
The first method uses card projection, so the text needs to be mirrored first. The second way is to use the card itself after roto, but there is a project camera is moving. framehold is set at 120 frames. roto out, turned into a mask, and then extracted. Another framehold was added to paste that image back in. Another framehold was added below to track the camera. The third one is similar to the second one, but the roto is projected. The fourth is equivalent to the replacement image is flattened, is a plane, and then draw and deform the object to be changed.
Then, learned how to create point clouds. Here is a screenshot of my class to make sure I can make point clouds afterwards.