Hello some time ago i noticed someone adding helper objects to his drawings that disappear in the compilation, can't now remember where i saw this, but it occurred to me this was a neat feature.... so i have now an object that clips to a 3030 alu profile, and i want to see the profile only in fast drawing but not when i compile the object... i have seen it done, but i can't find the info in the docu? how can this be achieved? thanks in advance -- ciao Bruno =========================================== http://nohkumado.eu/, <http://bboett.free.fr>http://aikido.nohkumado.eu/, <http://bboett.free.fr> http://aikido.zorn.free.fr

On 13.04.20 18:43, Bruno Boettcher wrote: > some time ago i noticed someone adding helper objects to his > drawings that disappear in the compilation That should be the "background modifier": https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Modifier_Characters#Background_Modifier ciao, Torsten.

There is the %background modifier Ignore this subtree for the normal rendering process and draw it in > transparent gray (all transformations are still applied to the nodes in > this tree). > Because the marked subtree is completely ignored, it might have unexpected > effects in case it's used, for example, with the first object in a > difference(). In that case this object is rendered in transparent gray, but > it is *not* used as the base for the difference()! And there is $preview > $preview is true, when in OpenCSG preview (F5). $preview is false, when in > render (F6). > This can, for example, be used to reduce detail during preview to save > time, without losing detail in the final rendered result: On Mon, 13 Apr 2020 at 17:44, Bruno Boettcher <bboett@gmail.com> wrote: > Hello > some time ago i noticed someone adding helper objects to his drawings that > disappear in the compilation, can't now remember where i saw this, but it > occurred to me this was a neat feature.... > > so i have now an object that clips to a 3030 alu profile, and i want to > see the profile only in fast drawing but not when i compile the object... > i have seen it done, but i can't find the info in the docu? > how can this be achieved? > > thanks in advance > > -- > ciao > Bruno > > =========================================== > http://nohkumado.eu/, <http://bboett.free.fr>http://aikido.nohkumado.eu/, > <http://bboett.free.fr> > http://aikido.zorn.free.fr > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >