It is just an illusion. When you see something further away that appears the same size your brain interprets it as being bigger than the same object closer that is the same size. On Sat, 22 Jul 2023 at 13:35, jpm2nice-tech--- via Discuss < discuss@lists.openscad.org> wrote: > > > > ---------- Forwarded message ---------- > From: jpm2nice-tech@yahoo.fr > To: discuss@lists.openscad.org > Cc: > Bcc: > Date: Sat, 22 Jul 2023 12:34:51 +0000 > Subject: [OpenSCAD] Viewing problem in orthogonal perspective > > Hi, gentlemen, > > I am a beginner, but I successfully draw my first part. > It looks fine. (It is very "squared", with right angles in the corners). > > However I meet a viewing problem I dont understand: > > When I watch the part in "perspective" mode, it appears as it should, (the > distances away from the viewer appear shorter), > > When I switch to the "orthogonal" mode, I expected to see the part without > any perspective, as in the so called "isometric" perspective. > > Instead of this, it appears in a kind of inverted perspective, (the > distances away from the viewer appear longer). > > What did I do wrong? > > Thanks > > RV > > > > ---------- Forwarded message ---------- > From: jpm2nice-tech--- via Discuss <discuss@lists.openscad.org> > To: discuss@lists.openscad.org > Cc: jpm2nice-tech@yahoo.fr > Bcc: > Date: Sat, 22 Jul 2023 12:34:51 +0000 > Subject: [OpenSCAD] Viewing problem in orthogonal perspective > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >