[OpenSCAD] Functional OpenSCAD, working with vertex data
jon at jonbondy.com
Tue Jan 30 14:25:21 EST 2018
I would welcome a switch that turned off implicit union, if the result
was better performance. I understand that I would need to alter my
source code, and that I might need to modify library source code.
On 1/30/2018 2:05 PM, Carsten Arnholm wrote:
> On 30. jan. 2018 17:49, Jordan Brown wrote:
>> Not knowing how hull( ) works, I wouldn't have expected there to be a
>> Good information, thanks.
> The problem is not hull(), but implicit union. Hull only needs the
> points in the input mesh(es). Applying [implicit] union() before
> applying hull() to the result is like unknowingly driving with the
> hand brake engaged. You perform a potentially costly computation
> (union()) only to immediately throw away the result.
> One idea would be to provide an option to switch off implicit union,
> and such issues will go away.
> Carsten Arnholm
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> Discuss at lists.openscad.org
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