Scrapes the mesh with two angled planes at the same time, creating a sharp edge between them. This is useful for creating & polishing hard surface objects.
笔刷的两个平面之间的角度，按下 Ctrl 反转角度。
When enabled, the angle is dynamically updated based on the surface under the brush. The Plane Angle then controls how much the angle will increase when applying pen pressure. When pressing Ctrl, it locks the plane angle to 0 degrees.
Displays a preview of the two planes and the angle they form during the stroke.