Manual Reference Structure Menu Knife
Knife Options
In Line mode, you can drag a cutting line over the polygons. You may find it helpful to think of this cutting line as being a red hot wire that cuts straight through the polygons. Press Shift to constrain the cutting line to the Angle value (Single must be enabled).
Hole mode allows you to cut a hole inside an individual polygon, which is highlighted in yellow. Click in each position where there should be a corner point, then click again on the first corner point to complete the cut.
This mode gives you an easy way to make cuts along a plane. You can make a single cut or even carve up the entire object. You can define the number of cuts and the distance between each cut.
The Loop mode enables you to subdivide edge loops. Move the mouse pointer to the position along one of the edges that the new loop should cut through. A yellow preview will appear to indicate where the new cut will be placed. Click to apply the cut.
This mode requires an edge selection or polygon selection. Move the mouse pointer in the area of the selection. Path will then attempt to cut a path (displayed as a yellow preview) through the selection. For best results, select a path of polygons one polygon wide.
If this option is enabled, you can choose both the start point and end point of the cutting line. If the option is disabled, the end point of the last cut will automatically become the start point of the next cutting line.
If this option is enabled, the Knife tool will cut the selected elements only.
Selects the edges of the new cut. To add the new edges to the existing selection, hold down Shift while you make the cut.
Enable this option to cut directly visible polygons only. Otherwise, polygons at the back of the object — or even other selected polygon objects out of sight behind the object — will be cut.
If this option is enabled, only the edges will be cut. The polygons themselves will not be cut (provided Create N-gons is enabled).
N-gons will be created automatically if this option is enabled and the resultant polygons have more than four corner points. If you want each polygon to be triangulated automatically instead, disable the option.
The Constrain option, if enabled, will constrain the cutting line angle to the Angle value. You can also constrain the cutting line angle by holding down Shift while you make the cut.
In Plane mode, Offset defines the position of the cut.
In Loop mode, Offset defines the cut position along the selected edge (mouse position).
In Path mode, Offset defines the cut position along the width of the cut.
If this option is enabled, you can lock the cutting line in place by pressing Shift. Then, as you adjust the knife’s parameters, the cutting line will be updated in realtime.
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| The cutting planes with Coords set to Camera. |
Here, with the Coords parameter, you can choose which coordinate system is used for the cutting planes: Local, World or Camera. With the Camera setting, the cutting planes will depend on the direction in which the camera is pointing (see illustration above).
Use the Plane parameter to choose the cutting plane: XY, YZ or XZ.
If enabled, this option creates a cut through the center of the object, which you can then offset using the Offset value.
Cuts [1..1000]
Spacing [-10000000..10000000m]
The Cuts parameter allows you to create as many cuts in one go as you wish. It defines the number of cuts. The Spacing value controls the distance between each cut. Note that the Slice option must be disabled.