Look at the effect chart first
1, make the text, copy a copy, and then fill the text selection with white, figure 2.
2, which is filled with white after the effect, figure 3.
3, after canceling the selection, create a selection on the copy as shown in Figure 4.
4, create a layer mask, the effect is as shown in Figure 5.
5, go to IR and remove the mask and layer link, easy to operate the mask independently, figure 6.
6, copy the current hardwood, Figure 7.
7, confirm that the mask is in the edited state, and then press the keyboard direction key to move the mask to the position shown in Figure 8.
8, click Transition, set transition frame, figure 9.
9, copy the frame again, put the copy eye off, and set the time for more than 1 seconds, and finally save the optimization results, Figure 10.