[section]Manual Update Appendix: Mesh Intersection
Mesh Intersection, often called "boolean functions", is a different
way to model. The Blender way is to model around holes, with Mesh
Intersection you first do your models and then cut holes in
them.
Mesh Intersect is avaible in the Editbuttons, F9. Select the faces
(this means, select the vertices in EditMode which form the
desired face)
that need an intersection and press this button. Blender now
intersects all selected faces with each other.
Best example to test
this, is with an IcoSphere and a Cube. After intersection, a user can
select with LKEY the individual parts. By removing certain parts, a
user can easily obtain a boolean operation like OR, AND or XOR.
To ensure a proper intersection, it is important
to follow these guidlines:
- Make sure no co-planar faces intersect.
- Always make sure faces have as few
intersections as possible, for example
intersecting a a single pane with a tube works
better when the plane is subdivided a few
times.
- The 'secret' trick: rotate each part slightly, just a
fraction of a degree.
- Before intersecting, save the file or press
TAB-TAB to create an UNDO possibility. It still is
possible to make Blender crash with this
routine.