8-1 using free transform (some operations and tutorials differ)

Http://www.missyuan.com/thread-527015-1-1.html

The free transform blends the various operations together, and the rotation, stretching, and perspective operations can all be done at once, and only one reorganization is performed on the pixel. This image quality is better than the sub-calculation.

Free transform function "Edit _ Free transform" 〖ctrl_t〗

Rectangle Adjustment box (also called bounding box)

Rotate and hold the 〖shift〗 key at the same time to lock each rotation to 15 degrees, which is very convenient to do some special angles (such as 45 degrees, 90 degrees) rotation

Changing the position of 0 points will change the center of rotation, and the center of rotation can be outside the adjustment box.

Oblique cut
The effect of chamfering is divided into two, holding down CTRL and Shif〗 drag on 2457 as if the rectangle changes to parallelogram, although the shape is arbitrary, but the edges must be parallel. The opposite edge is locked.
Dragging on the 1368 will only change one corner, which is equivalent to changing the rectangle to a trapezoid, locking the opposite side. Normally the next time you can move in one direction only, hold down CTRL to move in two directions at the same time. The direction here is to change the frame edge, if the transformation box edge and horizontal line is 12 degrees angle, then you can only move in the direction of 12 degrees. At the bottom right, you can only move in the direction of two green lines.
Hold down Alt to change the opposite edge or diagonal at the same time. is the fixed center point.

Perspective

〖ctrl_shift_alt〗 drag on 1368, as shown in the left and middle charts. Note that the two points on the same side will affect each other, such as moving 1 to the right while the 3 will be equidistant to the left. In normal mode, each drag can only be in the x-axis or y-axis direction, if you hold down CTRL. The image below is shown below.

Deformation mirrors

The Shape tool 〖u/shift_u〗 itself is a vector

"Edit _ Transform _ Again" 〖ctrl_shift_t〗

8-1 using free transform (some operations and tutorials differ)