[Bf-funboard] Differencing Cubes

Roger hovergo at net-tech.com.au
Mon Aug 11 03:23:55 CEST 2008

Ken Hughes wrote:
> Roger wrote:
>> For some reason verts  have been added  to edges around the removed space 
>> creating unnecessary edges added to the object connecting these extraneous verts 
>> to corner verts of the first cube.
>> It seems that blender has to make it into triangles when quads are required.
>> Why ??
>> There is no need to add verts along an edge, cut edges or make triangles.
>> Is this a bug or am I doing something wrong.
> It's a bug.  The current boolean algorithm works on tris; it 
> preprocesses all quads into tris, does the  operation, then merges faces 
> back together.  The current merge algorithm suffers from a general issue 
> of numerical precision.  I committed a new merge algorithm to svn about 
> two weeks ago that fixes this problem in most, but not all cases.
> Ken

Thank you Ken
Should I download blender or the svn and compile at this end.

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