Replacement for Blender's built-in knife tool. It enables the user to cut
exactly through existing vertices and since you select the cutting points on
the edge itself, is more precise. It gives instant feedback on the precise
location of the new edges. One can also cut through an already existing cut
that was made in the same operation.
Documentation Unzip the package into the main Blender scripts directory (it
is important to know this differs from the user definable dir). After
invoking the script, click in either 3D window to select it for working
with, if only one 3D window is being used, don't bother selecting it, just
get straight to the cutting table..
The script first has to calculate a reference database of specific mesh
information. This can take some time on large meshes and/or slow machines.
Now, how to perform the magical housewife-division operation:
Move the mouse cursor over the starting edge, it will become orange, and
depress left mouse button to place the first vertice. If you want, you can
hold down the left mouse button to slide the vert location (visualized by a
small box) along the edge it is on. When you move beyond the limits of the
edge, the box will stop at the end-point, changing colour to red signaling
that the vertice you are positioning will be molded into one with the
endpoint of the edge it is travelling along. Release the mouse button when
you are satisfied. When you move the mouse cursor over to another edge, you
can re-iniciate this process.
Use the DEL key to undo one cutting step at a time.
It is possible to chop up one or more edges at the same time with just one
decisive cut of this enchanted blade.
(Note: it is possible to use the new edge construction lines you have drawn
to place new verts on.)
Press right mouse button during operation to cancel.
Press RETURN or Left-click on the very same edge you placed the last vert
on, to finalize the cutting operation.
UNDO: this script only does one mesh operation at the end of the cut; this
means you can undo the operation using Ctrl-Z afterwards.
UPDATE: KnifePro does now work in perspective mode also.
BEWARE: KnifePro, like every other plugin that changes the mesh, will
decompose all FGons in the mesh!